diff --git a/Source/Framework/Constants/Network/Opcodes.cs b/Source/Framework/Constants/Network/Opcodes.cs
index 0fecc1e11..36be7422c 100644
--- a/Source/Framework/Constants/Network/Opcodes.cs
+++ b/Source/Framework/Constants/Network/Opcodes.cs
@@ -878,6 +878,7 @@ namespace Framework.Constants
AuctionableTokenSellConfirmRequired = 0x27c5,
AuctionClosedNotification = 0x26e7,
AuctionCommandResult = 0x26e4,
+ AuctionDisablePostingBeforeMaintenance = 0x287F,
AuctionFavoriteList = 0x285f,
AuctionGetCommodityQuoteResult = 0x2856,
AuctionHelloResponse = 0x26e2,
diff --git a/Source/Framework/Cryptography/Ed25519/CryptoBytes.cs b/Source/Framework/Cryptography/Ed25519/CryptoBytes.cs
new file mode 100644
index 000000000..d55477571
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/CryptoBytes.cs
@@ -0,0 +1,273 @@
+using System;
+using System.Linq;
+using System.Numerics;
+using System.Runtime.CompilerServices;
+using System.Diagnostics.Contracts;
+
+namespace Framework.Cryptography.Ed25519
+{
+ public static class CryptoBytes
+ {
+ ///
+ /// Comparison of two arrays.
+ ///
+ /// The runtime of this method does not depend on the contents of the arrays. Using constant time
+ /// prevents timing attacks that allow an attacker to learn if the arrays have a common prefix.
+ ///
+ /// It is important to use such a constant time comparison when verifying MACs.
+ ///
+ /// Byte array
+ /// Byte array
+ /// True if arrays are equal
+ public static bool ConstantTimeEquals(byte[] x, byte[] y)
+ {
+ if (x.Length != y.Length)
+ return false;
+ return InternalConstantTimeEquals(x, 0, y, 0, x.Length) != 0;
+ }
+
+ ///
+ /// Comparison of two array segments.
+ ///
+ /// The runtime of this method does not depend on the contents of the arrays. Using constant time
+ /// prevents timing attacks that allow an attacker to learn if the arrays have a common prefix.
+ ///
+ /// It is important to use such a constant time comparison when verifying MACs.
+ ///
+ /// Byte array segment
+ /// Byte array segment
+ /// True if contents of x and y are equal
+ public static bool ConstantTimeEquals(ArraySegment x, ArraySegment y)
+ {
+ if (x.Count != y.Count)
+ return false;
+ return InternalConstantTimeEquals(x.Array, x.Offset, y.Array, y.Offset, x.Count) != 0;
+ }
+
+ ///
+ /// Comparison of two byte sequences.
+ ///
+ /// The runtime of this method does not depend on the contents of the arrays. Using constant time
+ /// prevents timing attacks that allow an attacker to learn if the arrays have a common prefix.
+ ///
+ /// It is important to use such a constant time comparison when verifying MACs.
+ ///
+ /// Byte array
+ /// Offset of byte sequence in the x array
+ /// Byte array
+ /// Offset of byte sequence in the y array
+ /// Lengh of byte sequence
+ /// True if sequences are equal
+ public static bool ConstantTimeEquals(byte[] x, int xOffset, byte[] y, int yOffset, int length)
+ {
+ return InternalConstantTimeEquals(x, xOffset, y, yOffset, length) != 0;
+ }
+
+ private static uint InternalConstantTimeEquals(byte[] x, int xOffset, byte[] y, int yOffset, int length)
+ {
+ int differentbits = 0;
+ for (int i = 0; i < length; i++)
+ differentbits |= x[xOffset + i] ^ y[yOffset + i];
+ return (1 & (unchecked((uint)differentbits - 1) >> 8));
+ }
+
+ ///
+ /// Overwrites the contents of the array, wiping the previous content.
+ ///
+ /// Byte array
+ public static void Wipe(byte[] data)
+ {
+ InternalWipe(data, 0, data.Length);
+ }
+
+ ///
+ /// Overwrites the contents of the array, wiping the previous content.
+ ///
+ /// Byte array
+ /// Index of byte sequence
+ /// Length of byte sequence
+ public static void Wipe(byte[] data, int offset, int length)
+ {
+ InternalWipe(data, offset, length);
+ }
+
+ ///
+ /// Overwrites the contents of the array segment, wiping the previous content.
+ ///
+ /// Byte array segment
+ public static void Wipe(ArraySegment data)
+ {
+ InternalWipe(data.Array, data.Offset, data.Count);
+ }
+
+ // Secure wiping is hard
+ // * the GC can move around and copy memory
+ // Perhaps this can be avoided by using unmanaged memory or by fixing the position of the array in memory
+ // * Swap files and error dumps can contain secret information
+ // It seems possible to lock memory in RAM, no idea about error dumps
+ // * Compiler could optimize out the wiping if it knows that data won't be read back
+ // I hope this is enough, suppressing inlining
+ // but perhaps `RtlSecureZeroMemory` is needed
+ [MethodImpl(MethodImplOptions.NoInlining)]
+ internal static void InternalWipe(byte[] data, int offset, int count)
+ {
+ Array.Clear(data, offset, count);
+ }
+
+ // shallow wipe of structs
+ [MethodImpl(MethodImplOptions.NoInlining)]
+ internal static void InternalWipe(ref T data)
+ where T : struct
+ {
+ data = default(T);
+ }
+
+ ///
+ /// Constant-time conversion of the bytes array to an upper-case hex string.
+ /// Please see http://stackoverflow.com/a/14333437/445517 for the detailed explanation
+ ///
+ /// Byte array
+ /// Hex representation of byte array
+ public static string ToHexStringUpper(byte[] data)
+ {
+ if (data == null)
+ return null;
+ char[] c = new char[data.Length * 2];
+ int b;
+ for (int i = 0; i < data.Length; i++)
+ {
+ b = data[i] >> 4;
+ c[i * 2] = (char)(55 + b + (((b - 10) >> 31) & -7));
+ b = data[i] & 0xF;
+ c[i * 2 + 1] = (char)(55 + b + (((b - 10) >> 31) & -7));
+ }
+ return new string(c);
+ }
+
+ ///
+ /// Constant-time conversion of the bytes array to an lower-case hex string.
+ /// Please see http://stackoverflow.com/a/14333437/445517 for the detailed explanation.
+ ///
+ /// Byte array
+ /// Hex representation of byte array
+ public static string ToHexStringLower(byte[] data)
+ {
+ if (data == null)
+ return null;
+ char[] c = new char[data.Length * 2];
+ int b;
+ for (int i = 0; i < data.Length; i++)
+ {
+ b = data[i] >> 4;
+ c[i * 2] = (char)(87 + b + (((b - 10) >> 31) & -39));
+ b = data[i] & 0xF;
+ c[i * 2 + 1] = (char)(87 + b + (((b - 10) >> 31) & -39));
+ }
+ return new string(c);
+ }
+
+ ///
+ /// Converts the hex string to bytes. Case insensitive.
+ ///
+ /// Hex encoded byte sequence
+ /// Byte array
+ public static byte[] FromHexString(string hexString)
+ {
+ if (hexString == null)
+ return null;
+ if (hexString.Length % 2 != 0)
+ throw new FormatException("The hex string is invalid because it has an odd length");
+ var result = new byte[hexString.Length / 2];
+ for (int i = 0; i < result.Length; i++)
+ result[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
+ return result;
+ }
+
+ ///
+ /// Encodes the bytes with the Base64 encoding.
+ /// More compact than hex, but it is case-sensitive and uses the special characters `+`, `/` and `=`.
+ ///
+ /// Byte array
+ /// Base 64 encoded data
+ public static string ToBase64String(byte[] data)
+ {
+ if (data == null)
+ return null;
+ return Convert.ToBase64String(data);
+ }
+
+ ///
+ /// Decodes a Base64 encoded string back to bytes.
+ ///
+ /// Base 64 encoded data
+ /// Byte array
+ public static byte[] FromBase64String(string base64String)
+ {
+ if (base64String == null)
+ return null;
+ return Convert.FromBase64String(base64String);
+ }
+
+ private const string strDigits = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
+
+ ///
+ /// Encode a byte sequence as a base58-encoded string
+ ///
+ /// Byte sequence
+ /// Encoding result
+ public static string Base58Encode(byte[] input)
+ {
+ // Decode byte[] to BigInteger
+ System.Numerics.BigInteger intData = 0;
+ for (int i = 0; i < input.Length; i++)
+ {
+ intData = intData * 256 + input[i];
+ }
+
+ // Encode BigInteger to Base58 string
+ string result = "";
+ while (intData > 0)
+ {
+ int remainder = (int)(intData % 58);
+ intData /= 58;
+ result = strDigits[remainder] + result;
+ }
+
+ // Append `1` for each leading 0 byte
+ for (int i = 0; i < input.Length && input[i] == 0; i++)
+ {
+ result = '1' + result;
+ }
+ return result;
+ }
+
+ ///
+ /// // Decode a base58-encoded string into byte array
+ ///
+ /// Base58 data string
+ /// Byte array
+ public static byte[] Base58Decode(string input)
+ {
+ // Decode Base58 string to BigInteger
+ System.Numerics.BigInteger intData = 0;
+ for (int i = 0; i < input.Length; i++)
+ {
+ int digit = strDigits.IndexOf(input[i]); //Slow
+ if (digit < 0)
+ throw new FormatException(string.Format("Invalid Base58 character `{0}` at position {1}", input[i], i));
+ intData = intData * 58 + digit;
+ }
+
+ // Encode BigInteger to byte[]
+ // Leading zero bytes get encoded as leading `1` characters
+ int leadingZeroCount = input.TakeWhile(c => c == '1').Count();
+ var leadingZeros = Enumerable.Repeat((byte)0, leadingZeroCount);
+ var bytesWithoutLeadingZeros =
+ intData.ToByteArray()
+ .Reverse()// to big endian
+ .SkipWhile(b => b == 0);//strip sign byte
+ var result = leadingZeros.Concat(bytesWithoutLeadingZeros).ToArray();
+ return result;
+ }
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Ed25519.cs b/Source/Framework/Cryptography/Ed25519/Ed25519.cs
new file mode 100644
index 000000000..f3b4a7573
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Ed25519.cs
@@ -0,0 +1,132 @@
+using System;
+using Framework.Cryptography.Ed25519.Internal.Ed25519Ref10;
+using System.Diagnostics.Contracts;
+
+namespace Framework.Cryptography.Ed25519
+{
+ public static class Ed25519
+ {
+ ///
+ /// Public Keys are 32 byte values. All possible values of this size a valid.
+ ///
+ public const int PublicKeySize = 32;
+ ///
+ /// Signatures are 64 byte values
+ ///
+ public const int SignatureSize = 64;
+ ///
+ /// Private key seeds are 32 byte arbitrary values. This is the form that should be generated and stored.
+ ///
+ public const int PrivateKeySeedSize = 32;
+ ///
+ /// A 64 byte expanded form of private key. This form is used internally to improve performance
+ ///
+ public const int ExpandedPrivateKeySize = 32 * 2;
+
+ ///
+ /// Verify Ed25519 signature
+ ///
+ /// Signature bytes
+ /// Message
+ /// Public key
+ /// True if signature is valid, false if it's not
+ public static bool Verify(ArraySegment signature, ArraySegment message, ArraySegment publicKey, int phflag = -1, byte[] ctx = null)
+ {
+ return Ed25519Operations.crypto_sign_verify(signature.Array, signature.Offset, message.Array, message.Offset, message.Count, publicKey.Array, publicKey.Offset, phflag, ctx);
+ }
+
+ ///
+ /// Verify Ed25519 signature
+ ///
+ /// Signature bytes
+ /// Message
+ /// Public key
+ /// True if signature is valid, false if it's not
+ public static bool Verify(byte[] signature, byte[] message, byte[] publicKey, int phflag = -1, byte[] ctx = null)
+ {
+ return Ed25519Operations.crypto_sign_verify(signature, 0, message, 0, message.Length, publicKey, 0, phflag, ctx);
+ }
+
+ ///
+ /// Create new Ed25519 signature
+ ///
+ /// Buffer for signature
+ /// Message bytes
+ /// Expanded form of private key
+ public static void Sign(ArraySegment signature, ArraySegment message, ArraySegment expandedPrivateKey, int phflag = -1, byte[] ctx = null)
+ {
+ Ed25519Operations.crypto_sign(signature.Array, signature.Offset, message.Array, message.Offset, message.Count, expandedPrivateKey.Array, expandedPrivateKey.Offset, phflag, ctx);
+ }
+
+ ///
+ /// Create new Ed25519 signature
+ ///
+ /// Buffer for signature
+ /// Message bytes
+ /// Expanded form of private key
+ public static byte[] Sign(byte[] message, byte[] expandedPrivateKey, int phflag = -1, byte[] ctx = null)
+ {
+ var signature = new byte[SignatureSize];
+ Sign(new ArraySegment(signature), new ArraySegment(message), new ArraySegment(expandedPrivateKey), phflag, ctx);
+ return signature;
+ }
+
+ ///
+ /// Calculate public key from private key seed
+ ///
+ /// Private key seed value
+ ///
+ public static byte[] PublicKeyFromSeed(byte[] privateKeySeed)
+ {
+ byte[] privateKey;
+ byte[] publicKey;
+ KeyPairFromSeed(out publicKey, out privateKey, privateKeySeed);
+ CryptoBytes.Wipe(privateKey);
+ return publicKey;
+ }
+
+ ///
+ /// Calculate expanded form of private key from the key seed.
+ ///
+ /// Private key seed value
+ /// Expanded form of the private key
+ public static byte[] ExpandedPrivateKeyFromSeed(byte[] privateKeySeed)
+ {
+ byte[] privateKey;
+ byte[] publicKey;
+ KeyPairFromSeed(out publicKey, out privateKey, privateKeySeed);
+ CryptoBytes.Wipe(publicKey);
+ return privateKey;
+ }
+
+ ///
+ /// Calculate key pair from the key seed.
+ ///
+ /// Public key
+ /// Expanded form of the private key
+ /// Private key seed value
+ public static void KeyPairFromSeed(out byte[] publicKey, out byte[] expandedPrivateKey, byte[] privateKeySeed)
+ {
+ var pk = new byte[PublicKeySize];
+ var sk = new byte[ExpandedPrivateKeySize];
+
+ Ed25519Operations.crypto_sign_keypair(pk, 0, sk, 0, privateKeySeed, 0);
+ publicKey = pk;
+ expandedPrivateKey = sk;
+ }
+
+ ///
+ /// Calculate key pair from the key seed.
+ ///
+ /// Public key
+ /// Expanded form of the private key
+ /// Private key seed value
+ public static void KeyPairFromSeed(ArraySegment publicKey, ArraySegment expandedPrivateKey, ArraySegment privateKeySeed)
+ {
+ Ed25519Operations.crypto_sign_keypair(
+ publicKey.Array, publicKey.Offset,
+ expandedPrivateKey.Array, expandedPrivateKey.Offset,
+ privateKeySeed.Array, privateKeySeed.Offset);
+ }
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Array16.cs b/Source/Framework/Cryptography/Ed25519/Internal/Array16.cs
new file mode 100644
index 000000000..a7c121ac8
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Array16.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+
+namespace Framework.Cryptography.Ed25519.Internal
+{
+ // Array16 Salsa20 state
+ // Array16 SHA-512 block
+ internal struct Array16
+ {
+ public T x0;
+ public T x1;
+ public T x2;
+ public T x3;
+ public T x4;
+ public T x5;
+ public T x6;
+ public T x7;
+ public T x8;
+ public T x9;
+ public T x10;
+ public T x11;
+ public T x12;
+ public T x13;
+ public T x14;
+ public T x15;
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Array8.cs b/Source/Framework/Cryptography/Ed25519/Internal/Array8.cs
new file mode 100644
index 000000000..34afb2064
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Array8.cs
@@ -0,0 +1,18 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal
+{
+ // Array8 Poly1305 key
+ // Array8 SHA-512 state/output
+ internal struct Array8
+ {
+ public T x0;
+ public T x1;
+ public T x2;
+ public T x3;
+ public T x4;
+ public T x5;
+ public T x6;
+ public T x7;
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/ByteIntegerConverter.cs b/Source/Framework/Cryptography/Ed25519/Internal/ByteIntegerConverter.cs
new file mode 100644
index 000000000..3cfc9b8ce
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/ByteIntegerConverter.cs
@@ -0,0 +1,55 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal
+{
+ // Loops? Arrays? Never heard of that stuff
+ // Library avoids unnecessary heap allocations and unsafe code
+ // so this ugly code becomes necessary :(
+ internal static class ByteIntegerConverter
+ {
+ public static ulong LoadBigEndian64(byte[] buf, int offset)
+ {
+ return
+ (ulong)(buf[offset + 7])
+ | (((ulong)(buf[offset + 6])) << 8)
+ | (((ulong)(buf[offset + 5])) << 16)
+ | (((ulong)(buf[offset + 4])) << 24)
+ | (((ulong)(buf[offset + 3])) << 32)
+ | (((ulong)(buf[offset + 2])) << 40)
+ | (((ulong)(buf[offset + 1])) << 48)
+ | (((ulong)(buf[offset + 0])) << 56);
+ }
+
+ public static void StoreBigEndian64(byte[] buf, int offset, ulong value)
+ {
+ buf[offset + 7] = unchecked((byte)value);
+ buf[offset + 6] = unchecked((byte)(value >> 8));
+ buf[offset + 5] = unchecked((byte)(value >> 16));
+ buf[offset + 4] = unchecked((byte)(value >> 24));
+ buf[offset + 3] = unchecked((byte)(value >> 32));
+ buf[offset + 2] = unchecked((byte)(value >> 40));
+ buf[offset + 1] = unchecked((byte)(value >> 48));
+ buf[offset + 0] = unchecked((byte)(value >> 56));
+ }
+
+ public static void Array16LoadBigEndian64(out Array16 output, byte[] input, int inputOffset)
+ {
+ output.x0 = LoadBigEndian64(input, inputOffset + 0);
+ output.x1 = LoadBigEndian64(input, inputOffset + 8);
+ output.x2 = LoadBigEndian64(input, inputOffset + 16);
+ output.x3 = LoadBigEndian64(input, inputOffset + 24);
+ output.x4 = LoadBigEndian64(input, inputOffset + 32);
+ output.x5 = LoadBigEndian64(input, inputOffset + 40);
+ output.x6 = LoadBigEndian64(input, inputOffset + 48);
+ output.x7 = LoadBigEndian64(input, inputOffset + 56);
+ output.x8 = LoadBigEndian64(input, inputOffset + 64);
+ output.x9 = LoadBigEndian64(input, inputOffset + 72);
+ output.x10 = LoadBigEndian64(input, inputOffset + 80);
+ output.x11 = LoadBigEndian64(input, inputOffset + 88);
+ output.x12 = LoadBigEndian64(input, inputOffset + 96);
+ output.x13 = LoadBigEndian64(input, inputOffset + 104);
+ output.x14 = LoadBigEndian64(input, inputOffset + 112);
+ output.x15 = LoadBigEndian64(input, inputOffset + 120);
+ }
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/FieldElement.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/FieldElement.cs
new file mode 100644
index 000000000..6fb88a3e8
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/FieldElement.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Diagnostics.Contracts;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal struct FieldElement
+ {
+ internal int x0, x1, x2, x3, x4, x5, x6, x7, x8, x9;
+
+ internal FieldElement(params int[] elements)
+ {
+ x0 = elements[0];
+ x1 = elements[1];
+ x2 = elements[2];
+ x3 = elements[3];
+ x4 = elements[4];
+ x5 = elements[5];
+ x6 = elements[6];
+ x7 = elements[7];
+ x8 = elements[8];
+ x9 = elements[9];
+ }
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/GroupElement.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/GroupElement.cs
new file mode 100644
index 000000000..17bd82cfe
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/GroupElement.cs
@@ -0,0 +1,63 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ /*
+ ge means group element.
+
+ Here the group is the set of pairs (x,y) of field elements (see fe.h)
+ satisfying -x^2 + y^2 = 1 + d x^2y^2
+ where d = -121665/121666.
+
+ Representations:
+ ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z
+ ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
+ ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
+ ge_precomp (Duif): (y+x,y-x,2dxy)
+ */
+
+ internal struct GroupElementP2
+ {
+ public FieldElement X;
+ public FieldElement Y;
+ public FieldElement Z;
+ } ;
+
+ internal struct GroupElementP3
+ {
+ public FieldElement X;
+ public FieldElement Y;
+ public FieldElement Z;
+ public FieldElement T;
+ } ;
+
+ internal struct GroupElementP1P1
+ {
+ public FieldElement X;
+ public FieldElement Y;
+ public FieldElement Z;
+ public FieldElement T;
+ } ;
+
+ internal struct GroupElementPreComp
+ {
+ public FieldElement yplusx;
+ public FieldElement yminusx;
+ public FieldElement xy2d;
+
+ public GroupElementPreComp(FieldElement yplusx, FieldElement yminusx, FieldElement xy2d)
+ {
+ this.yplusx = yplusx;
+ this.yminusx = yminusx;
+ this.xy2d = xy2d;
+ }
+ } ;
+
+ internal struct GroupElementCached
+ {
+ public FieldElement YplusX;
+ public FieldElement YminusX;
+ public FieldElement Z;
+ public FieldElement T2d;
+ } ;
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/base.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/base.cs
new file mode 100644
index 000000000..0793bd29c
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/base.cs
@@ -0,0 +1,1355 @@
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class LookupTables
+ {
+ /* base[i][j] = (j+1)*256^i*B */
+ //32*8
+ internal static GroupElementPreComp[][] Base = new GroupElementPreComp[][]
+ {
+ new[]{
+ new GroupElementPreComp(
+ new FieldElement( 25967493,-14356035,29566456,3660896,-12694345,4014787,27544626,-11754271,-6079156,2047605 ),
+ new FieldElement( -12545711,934262,-2722910,3049990,-727428,9406986,12720692,5043384,19500929,-15469378 ),
+ new FieldElement( -8738181,4489570,9688441,-14785194,10184609,-12363380,29287919,11864899,-24514362,-4438546 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( -12815894,-12976347,-21581243,11784320,-25355658,-2750717,-11717903,-3814571,-358445,-10211303 ),
+ new FieldElement( -21703237,6903825,27185491,6451973,-29577724,-9554005,-15616551,11189268,-26829678,-5319081 ),
+ new FieldElement( 26966642,11152617,32442495,15396054,14353839,-12752335,-3128826,-9541118,-15472047,-4166697 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( 15636291,-9688557,24204773,-7912398,616977,-16685262,27787600,-14772189,28944400,-1550024 ),
+ new FieldElement( 16568933,4717097,-11556148,-1102322,15682896,-11807043,16354577,-11775962,7689662,11199574 ),
+ new FieldElement( 30464156,-5976125,-11779434,-15670865,23220365,15915852,7512774,10017326,-17749093,-9920357 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( -17036878,13921892,10945806,-6033431,27105052,-16084379,-28926210,15006023,3284568,-6276540 ),
+ new FieldElement( 23599295,-8306047,-11193664,-7687416,13236774,10506355,7464579,9656445,13059162,10374397 ),
+ new FieldElement( 7798556,16710257,3033922,2874086,28997861,2835604,32406664,-3839045,-641708,-101325 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( 10861363,11473154,27284546,1981175,-30064349,12577861,32867885,14515107,-15438304,10819380 ),
+ new FieldElement( 4708026,6336745,20377586,9066809,-11272109,6594696,-25653668,12483688,-12668491,5581306 ),
+ new FieldElement( 19563160,16186464,-29386857,4097519,10237984,-4348115,28542350,13850243,-23678021,-15815942 )
+ ),
+ new GroupElementPreComp(
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+ ),
+ new GroupElementPreComp(
+ new FieldElement( -22448644,15655569,7018479,-4410003,-30314266,-1201591,-1853465,1367120,25127874,6671743 ),
+ new FieldElement( 29701166,-14373934,-10878120,9279288,-17568,13127210,21382910,11042292,25838796,4642684 ),
+ new FieldElement( -20430234,14955537,-24126347,8124619,-5369288,-5990470,30468147,-13900640,18423289,4177476 )
+ )
+ }
+ };
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/base2.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/base2.cs
new file mode 100644
index 000000000..52c61dcfe
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/base2.cs
@@ -0,0 +1,50 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class LookupTables
+ {
+ internal static readonly GroupElementPreComp[] Base2 = new GroupElementPreComp[]{
+ new GroupElementPreComp(
+ new FieldElement( 25967493,-14356035,29566456,3660896,-12694345,4014787,27544626,-11754271,-6079156,2047605 ),
+ new FieldElement( -12545711,934262,-2722910,3049990,-727428,9406986,12720692,5043384,19500929,-15469378 ),
+ new FieldElement( -8738181,4489570,9688441,-14785194,10184609,-12363380,29287919,11864899,-24514362,-4438546 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( 15636291,-9688557,24204773,-7912398,616977,-16685262,27787600,-14772189,28944400,-1550024 ),
+ new FieldElement( 16568933,4717097,-11556148,-1102322,15682896,-11807043,16354577,-11775962,7689662,11199574 ),
+ new FieldElement( 30464156,-5976125,-11779434,-15670865,23220365,15915852,7512774,10017326,-17749093,-9920357 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( 10861363,11473154,27284546,1981175,-30064349,12577861,32867885,14515107,-15438304,10819380 ),
+ new FieldElement( 4708026,6336745,20377586,9066809,-11272109,6594696,-25653668,12483688,-12668491,5581306 ),
+ new FieldElement( 19563160,16186464,-29386857,4097519,10237984,-4348115,28542350,13850243,-23678021,-15815942 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( 5153746,9909285,1723747,-2777874,30523605,5516873,19480852,5230134,-23952439,-15175766 ),
+ new FieldElement( -30269007,-3463509,7665486,10083793,28475525,1649722,20654025,16520125,30598449,7715701 ),
+ new FieldElement( 28881845,14381568,9657904,3680757,-20181635,7843316,-31400660,1370708,29794553,-1409300 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( -22518993,-6692182,14201702,-8745502,-23510406,8844726,18474211,-1361450,-13062696,13821877 ),
+ new FieldElement( -6455177,-7839871,3374702,-4740862,-27098617,-10571707,31655028,-7212327,18853322,-14220951 ),
+ new FieldElement( 4566830,-12963868,-28974889,-12240689,-7602672,-2830569,-8514358,-10431137,2207753,-3209784 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( -25154831,-4185821,29681144,7868801,-6854661,-9423865,-12437364,-663000,-31111463,-16132436 ),
+ new FieldElement( 25576264,-2703214,7349804,-11814844,16472782,9300885,3844789,15725684,171356,6466918 ),
+ new FieldElement( 23103977,13316479,9739013,-16149481,817875,-15038942,8965339,-14088058,-30714912,16193877 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( -33521811,3180713,-2394130,14003687,-16903474,-16270840,17238398,4729455,-18074513,9256800 ),
+ new FieldElement( -25182317,-4174131,32336398,5036987,-21236817,11360617,22616405,9761698,-19827198,630305 ),
+ new FieldElement( -13720693,2639453,-24237460,-7406481,9494427,-5774029,-6554551,-15960994,-2449256,-14291300 )
+ ),
+ new GroupElementPreComp(
+ new FieldElement( -3151181,-5046075,9282714,6866145,-31907062,-863023,-18940575,15033784,25105118,-7894876 ),
+ new FieldElement( -24326370,15950226,-31801215,-14592823,-11662737,-5090925,1573892,-2625887,2198790,-15804619 ),
+ new FieldElement( -3099351,10324967,-2241613,7453183,-5446979,-2735503,-13812022,-16236442,-32461234,-12290683 )
+ )
+ };
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/d.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/d.cs
new file mode 100644
index 000000000..fd2e70195
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/d.cs
@@ -0,0 +1,9 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class LookupTables
+ {
+ internal static FieldElement d = new FieldElement(-10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116);
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/d2.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/d2.cs
new file mode 100644
index 000000000..30701840d
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/d2.cs
@@ -0,0 +1,9 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class LookupTables
+ {
+ internal static FieldElement d2 = new FieldElement(-21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199);
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_0.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_0.cs
new file mode 100644
index 000000000..51e75332c
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_0.cs
@@ -0,0 +1,12 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ public static void fe_0(out FieldElement h)
+ {
+ h = default(FieldElement);
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_1.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_1.cs
new file mode 100644
index 000000000..550c5280d
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_1.cs
@@ -0,0 +1,13 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ public static void fe_1(out FieldElement h)
+ {
+ h = default(FieldElement);
+ h.x0 = 1;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_add.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_add.cs
new file mode 100644
index 000000000..ee376b012
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_add.cs
@@ -0,0 +1,64 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ h = f + g
+ Can overlap h with f or g.
+
+ Preconditions:
+ |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+ |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+ Postconditions:
+ |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+ */
+ //void fe_add(fe h,const fe f,const fe g)
+ internal static void fe_add(out FieldElement h, ref FieldElement f, ref FieldElement g)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+ int g0 = g.x0;
+ int g1 = g.x1;
+ int g2 = g.x2;
+ int g3 = g.x3;
+ int g4 = g.x4;
+ int g5 = g.x5;
+ int g6 = g.x6;
+ int g7 = g.x7;
+ int g8 = g.x8;
+ int g9 = g.x9;
+ int h0 = f0 + g0;
+ int h1 = f1 + g1;
+ int h2 = f2 + g2;
+ int h3 = f3 + g3;
+ int h4 = f4 + g4;
+ int h5 = f5 + g5;
+ int h6 = f6 + g6;
+ int h7 = f7 + g7;
+ int h8 = f8 + g8;
+ int h9 = f9 + g9;
+
+ h.x0 = h0;
+ h.x1 = h1;
+ h.x2 = h2;
+ h.x3 = h3;
+ h.x4 = h4;
+ h.x5 = h5;
+ h.x6 = h6;
+ h.x7 = h7;
+ h.x8 = h8;
+ h.x9 = h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_cmov.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_cmov.cs
new file mode 100644
index 000000000..9145c521a
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_cmov.cs
@@ -0,0 +1,71 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ Replace (f,g) with (g,g) if b == 1;
+ replace (f,g) with (f,g) if b == 0.
+
+ Preconditions: b in {0,1}.
+ */
+
+ //void fe_cmov(fe f,const fe g,unsigned int b)
+ internal static void fe_cmov(ref FieldElement f, ref FieldElement g, int b)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+ int g0 = g.x0;
+ int g1 = g.x1;
+ int g2 = g.x2;
+ int g3 = g.x3;
+ int g4 = g.x4;
+ int g5 = g.x5;
+ int g6 = g.x6;
+ int g7 = g.x7;
+ int g8 = g.x8;
+ int g9 = g.x9;
+ int x0 = f0 ^ g0;
+ int x1 = f1 ^ g1;
+ int x2 = f2 ^ g2;
+ int x3 = f3 ^ g3;
+ int x4 = f4 ^ g4;
+ int x5 = f5 ^ g5;
+ int x6 = f6 ^ g6;
+ int x7 = f7 ^ g7;
+ int x8 = f8 ^ g8;
+ int x9 = f9 ^ g9;
+
+ b = -b;
+ x0 &= b;
+ x1 &= b;
+ x2 &= b;
+ x3 &= b;
+ x4 &= b;
+ x5 &= b;
+ x6 &= b;
+ x7 &= b;
+ x8 &= b;
+ x9 &= b;
+ f.x0 = f0 ^ x0;
+ f.x1 = f1 ^ x1;
+ f.x2 = f2 ^ x2;
+ f.x3 = f3 ^ x3;
+ f.x4 = f4 ^ x4;
+ f.x5 = f5 ^ x5;
+ f.x6 = f6 ^ x6;
+ f.x7 = f7 ^ x7;
+ f.x8 = f8 ^ x8;
+ f.x9 = f9 ^ x9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_cswap.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_cswap.cs
new file mode 100644
index 000000000..608fd3f29
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_cswap.cs
@@ -0,0 +1,79 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ Replace (f,g) with (g,f) if b == 1;
+ replace (f,g) with (f,g) if b == 0.
+
+ Preconditions: b in {0,1}.
+ */
+ public static void fe_cswap(ref FieldElement f, ref FieldElement g, uint b)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+ int g0 = g.x0;
+ int g1 = g.x1;
+ int g2 = g.x2;
+ int g3 = g.x3;
+ int g4 = g.x4;
+ int g5 = g.x5;
+ int g6 = g.x6;
+ int g7 = g.x7;
+ int g8 = g.x8;
+ int g9 = g.x9;
+ int x0 = f0 ^ g0;
+ int x1 = f1 ^ g1;
+ int x2 = f2 ^ g2;
+ int x3 = f3 ^ g3;
+ int x4 = f4 ^ g4;
+ int x5 = f5 ^ g5;
+ int x6 = f6 ^ g6;
+ int x7 = f7 ^ g7;
+ int x8 = f8 ^ g8;
+ int x9 = f9 ^ g9;
+
+ int negb = unchecked((int)-b);
+ x0 &= negb;
+ x1 &= negb;
+ x2 &= negb;
+ x3 &= negb;
+ x4 &= negb;
+ x5 &= negb;
+ x6 &= negb;
+ x7 &= negb;
+ x8 &= negb;
+ x9 &= negb;
+ f.x0 = f0 ^ x0;
+ f.x1 = f1 ^ x1;
+ f.x2 = f2 ^ x2;
+ f.x3 = f3 ^ x3;
+ f.x4 = f4 ^ x4;
+ f.x5 = f5 ^ x5;
+ f.x6 = f6 ^ x6;
+ f.x7 = f7 ^ x7;
+ f.x8 = f8 ^ x8;
+ f.x9 = f9 ^ x9;
+ g.x0 = g0 ^ x0;
+ g.x1 = g1 ^ x1;
+ g.x2 = g2 ^ x2;
+ g.x3 = g3 ^ x3;
+ g.x4 = g4 ^ x4;
+ g.x5 = g5 ^ x5;
+ g.x6 = g6 ^ x6;
+ g.x7 = g7 ^ x7;
+ g.x8 = g8 ^ x8;
+ g.x9 = g9 ^ x9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_frombytes.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_frombytes.cs
new file mode 100644
index 000000000..e92e6086f
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_frombytes.cs
@@ -0,0 +1,102 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ private static long load_3(byte[] data, int offset)
+ {
+ uint result;
+ result = data[offset + 0];
+ result |= (uint)data[offset + 1] << 8;
+ result |= (uint)data[offset + 2] << 16;
+ return (long)(ulong)result;
+ }
+
+ private static long load_4(byte[] data, int offset)
+ {
+ uint result;
+ result = data[offset + 0];
+ result |= (uint)data[offset + 1] << 8;
+ result |= (uint)data[offset + 2] << 16;
+ result |= (uint)data[offset + 3] << 24;
+ return (long)(ulong)result;
+ }
+
+ // Ignores top bit of h.
+ internal static void fe_frombytes(out FieldElement h, byte[] data, int offset)
+ {
+ var h0 = load_4(data, offset);
+ var h1 = load_3(data, offset + 4) << 6;
+ var h2 = load_3(data, offset + 7) << 5;
+ var h3 = load_3(data, offset + 10) << 3;
+ var h4 = load_3(data, offset + 13) << 2;
+ var h5 = load_4(data, offset + 16);
+ var h6 = load_3(data, offset + 20) << 7;
+ var h7 = load_3(data, offset + 23) << 5;
+ var h8 = load_3(data, offset + 26) << 4;
+ var h9 = (load_3(data, offset + 29) & 8388607) << 2;
+
+ var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+ var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+ var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+ var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+ var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+ var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+ var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+ var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+ var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+
+ h.x0 = (int)h0;
+ h.x1 = (int)h1;
+ h.x2 = (int)h2;
+ h.x3 = (int)h3;
+ h.x4 = (int)h4;
+ h.x5 = (int)h5;
+ h.x6 = (int)h6;
+ h.x7 = (int)h7;
+ h.x8 = (int)h8;
+ h.x9 = (int)h9;
+ }
+
+ // does NOT ignore top bit
+ internal static void fe_frombytes2(out FieldElement h, byte[] data, int offset)
+ {
+ var h0 = load_4(data, offset);
+ var h1 = load_3(data, offset + 4) << 6;
+ var h2 = load_3(data, offset + 7) << 5;
+ var h3 = load_3(data, offset + 10) << 3;
+ var h4 = load_3(data, offset + 13) << 2;
+ var h5 = load_4(data, offset + 16);
+ var h6 = load_3(data, offset + 20) << 7;
+ var h7 = load_3(data, offset + 23) << 5;
+ var h8 = load_3(data, offset + 26) << 4;
+ var h9 = load_3(data, offset + 29) << 2;
+
+ var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+ var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+ var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+ var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+ var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+ var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+ var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+ var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+ var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+
+ h.x0 = (int)h0;
+ h.x1 = (int)h1;
+ h.x2 = (int)h2;
+ h.x3 = (int)h3;
+ h.x4 = (int)h4;
+ h.x5 = (int)h5;
+ h.x6 = (int)h6;
+ h.x7 = (int)h7;
+ h.x8 = (int)h8;
+ h.x9 = (int)h9;
+ }
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_invert.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_invert.cs
new file mode 100644
index 000000000..28007a3d0
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_invert.cs
@@ -0,0 +1,128 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ internal static void fe_invert(out FieldElement result, ref FieldElement z)
+ {
+ FieldElement t0, t1, t2, t3;
+ int i;
+
+ /* qhasm: z2 = z1^2^1 */
+ /* asm 1: fe_sq(>z2=fe#1,z2=fe#1,>z2=fe#1); */
+ /* asm 2: fe_sq(>z2=t0,z2=t0,>z2=t0); */
+ fe_sq(out t0, ref z); //for (i = 1; i < 1; ++i) fe_sq(out t0, ref t0);
+
+ /* qhasm: z8 = z2^2^2 */
+ /* asm 1: fe_sq(>z8=fe#2,z8=fe#2,>z8=fe#2); */
+ /* asm 2: fe_sq(>z8=t1,z8=t1,>z8=t1); */
+ fe_sq(out t1, ref t0); for (i = 1; i < 2; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z9 = z1*z8 */
+ /* asm 1: fe_mul(>z9=fe#2,z9=t1,z11=fe#1,z11=t0,z22=fe#3,z22=fe#3,>z22=fe#3); */
+ /* asm 2: fe_sq(>z22=t2,z22=t2,>z22=t2); */
+ fe_sq(out t2, ref t0); //for (i = 1; i < 1; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_5_0 = z9*z22 */
+ /* asm 1: fe_mul(>z_5_0=fe#2,z_5_0=t1,z_10_5=fe#3,z_10_5=fe#3,>z_10_5=fe#3); */
+ /* asm 2: fe_sq(>z_10_5=t2,z_10_5=t2,>z_10_5=t2); */
+ fe_sq(out t2, ref t1); for (i = 1; i < 5; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_10_0 = z_10_5*z_5_0 */
+ /* asm 1: fe_mul(>z_10_0=fe#2,z_10_0=t1,z_20_10=fe#3,z_20_10=fe#3,>z_20_10=fe#3); */
+ /* asm 2: fe_sq(>z_20_10=t2,z_20_10=t2,>z_20_10=t2); */
+ fe_sq(out t2, ref t1); for (i = 1; i < 10; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_20_0 = z_20_10*z_10_0 */
+ /* asm 1: fe_mul(>z_20_0=fe#3,z_20_0=t2,z_40_20=fe#4,z_40_20=fe#4,>z_40_20=fe#4); */
+ /* asm 2: fe_sq(>z_40_20=t3,z_40_20=t3,>z_40_20=t3); */
+ fe_sq(out t3, ref t2); for (i = 1; i < 20; ++i) fe_sq(out t3, ref t3);
+
+ /* qhasm: z_40_0 = z_40_20*z_20_0 */
+ /* asm 1: fe_mul(>z_40_0=fe#3,z_40_0=t2,z_50_10=fe#3,z_50_10=fe#3,>z_50_10=fe#3); */
+ /* asm 2: fe_sq(>z_50_10=t2,z_50_10=t2,>z_50_10=t2); */
+ fe_sq(out t2, ref t2); for (i = 1; i < 10; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_50_0 = z_50_10*z_10_0 */
+ /* asm 1: fe_mul(>z_50_0=fe#2,z_50_0=t1,z_100_50=fe#3,z_100_50=fe#3,>z_100_50=fe#3); */
+ /* asm 2: fe_sq(>z_100_50=t2,z_100_50=t2,>z_100_50=t2); */
+ fe_sq(out t2, ref t1); for (i = 1; i < 50; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_100_0 = z_100_50*z_50_0 */
+ /* asm 1: fe_mul(>z_100_0=fe#3,z_100_0=t2,z_200_100=fe#4,z_200_100=fe#4,>z_200_100=fe#4); */
+ /* asm 2: fe_sq(>z_200_100=t3,z_200_100=t3,>z_200_100=t3); */
+ fe_sq(out t3, ref t2); for (i = 1; i < 100; ++i) fe_sq(out t3, ref t3);
+
+ /* qhasm: z_200_0 = z_200_100*z_100_0 */
+ /* asm 1: fe_mul(>z_200_0=fe#3,z_200_0=t2,z_250_50=fe#3,z_250_50=fe#3,>z_250_50=fe#3); */
+ /* asm 2: fe_sq(>z_250_50=t2,z_250_50=t2,>z_250_50=t2); */
+ fe_sq(out t2, ref t2); for (i = 1; i < 50; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_250_0 = z_250_50*z_50_0 */
+ /* asm 1: fe_mul(>z_250_0=fe#2,z_250_0=t1,z_255_5=fe#2,z_255_5=fe#2,>z_255_5=fe#2); */
+ /* asm 2: fe_sq(>z_255_5=t1,z_255_5=t1,>z_255_5=t1); */
+ fe_sq(out t1, ref t1); for (i = 1; i < 5; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z_255_21 = z_255_5*z11 */
+ /* asm 1: fe_mul(>z_255_21=fe#12,z_255_21=out,> 31) ^ 1);
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_mul.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_mul.cs
new file mode 100644
index 000000000..f8ad283aa
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_mul.cs
@@ -0,0 +1,263 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ h = f * g
+ Can overlap h with f or g.
+
+ Preconditions:
+ |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+ |g| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+
+ Postconditions:
+ |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
+ */
+
+ /*
+ Notes on implementation strategy:
+
+ Using schoolbook multiplication.
+ Karatsuba would save a little in some cost models.
+
+ Most multiplications by 2 and 19 are 32-bit precomputations;
+ cheaper than 64-bit postcomputations.
+
+ There is one remaining multiplication by 19 in the carry chain;
+ one *19 precomputation can be merged into this,
+ but the resulting data flow is considerably less clean.
+
+ There are 12 carries below.
+ 10 of them are 2-way parallelizable and vectorizable.
+ Can get away with 11 carries, but then data flow is much deeper.
+
+ With tighter constraints on inputs can squeeze carries into int32.
+ */
+
+ internal static void fe_mul(out FieldElement h, ref FieldElement f, ref FieldElement g)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+ int g0 = g.x0;
+ int g1 = g.x1;
+ int g2 = g.x2;
+ int g3 = g.x3;
+ int g4 = g.x4;
+ int g5 = g.x5;
+ int g6 = g.x6;
+ int g7 = g.x7;
+ int g8 = g.x8;
+ int g9 = g.x9;
+
+ int g1_19 = 19 * g1; /* 1.959375*2^29 */
+ int g2_19 = 19 * g2; /* 1.959375*2^30; still ok */
+ int g3_19 = 19 * g3;
+ int g4_19 = 19 * g4;
+ int g5_19 = 19 * g5;
+ int g6_19 = 19 * g6;
+ int g7_19 = 19 * g7;
+ int g8_19 = 19 * g8;
+ int g9_19 = 19 * g9;
+
+ int f1_2 = 2 * f1;
+ int f3_2 = 2 * f3;
+ int f5_2 = 2 * f5;
+ int f7_2 = 2 * f7;
+ int f9_2 = 2 * f9;
+
+ long f0g0 = f0 * (long)g0;
+ long f0g1 = f0 * (long)g1;
+ long f0g2 = f0 * (long)g2;
+ long f0g3 = f0 * (long)g3;
+ long f0g4 = f0 * (long)g4;
+ long f0g5 = f0 * (long)g5;
+ long f0g6 = f0 * (long)g6;
+ long f0g7 = f0 * (long)g7;
+ long f0g8 = f0 * (long)g8;
+ long f0g9 = f0 * (long)g9;
+ long f1g0 = f1 * (long)g0;
+ long f1g1_2 = f1_2 * (long)g1;
+ long f1g2 = f1 * (long)g2;
+ long f1g3_2 = f1_2 * (long)g3;
+ long f1g4 = f1 * (long)g4;
+ long f1g5_2 = f1_2 * (long)g5;
+ long f1g6 = f1 * (long)g6;
+ long f1g7_2 = f1_2 * (long)g7;
+ long f1g8 = f1 * (long)g8;
+ long f1g9_38 = f1_2 * (long)g9_19;
+ long f2g0 = f2 * (long)g0;
+ long f2g1 = f2 * (long)g1;
+ long f2g2 = f2 * (long)g2;
+ long f2g3 = f2 * (long)g3;
+ long f2g4 = f2 * (long)g4;
+ long f2g5 = f2 * (long)g5;
+ long f2g6 = f2 * (long)g6;
+ long f2g7 = f2 * (long)g7;
+ long f2g8_19 = f2 * (long)g8_19;
+ long f2g9_19 = f2 * (long)g9_19;
+ long f3g0 = f3 * (long)g0;
+ long f3g1_2 = f3_2 * (long)g1;
+ long f3g2 = f3 * (long)g2;
+ long f3g3_2 = f3_2 * (long)g3;
+ long f3g4 = f3 * (long)g4;
+ long f3g5_2 = f3_2 * (long)g5;
+ long f3g6 = f3 * (long)g6;
+ long f3g7_38 = f3_2 * (long)g7_19;
+ long f3g8_19 = f3 * (long)g8_19;
+ long f3g9_38 = f3_2 * (long)g9_19;
+ long f4g0 = f4 * (long)g0;
+ long f4g1 = f4 * (long)g1;
+ long f4g2 = f4 * (long)g2;
+ long f4g3 = f4 * (long)g3;
+ long f4g4 = f4 * (long)g4;
+ long f4g5 = f4 * (long)g5;
+ long f4g6_19 = f4 * (long)g6_19;
+ long f4g7_19 = f4 * (long)g7_19;
+ long f4g8_19 = f4 * (long)g8_19;
+ long f4g9_19 = f4 * (long)g9_19;
+ long f5g0 = f5 * (long)g0;
+ long f5g1_2 = f5_2 * (long)g1;
+ long f5g2 = f5 * (long)g2;
+ long f5g3_2 = f5_2 * (long)g3;
+ long f5g4 = f5 * (long)g4;
+ long f5g5_38 = f5_2 * (long)g5_19;
+ long f5g6_19 = f5 * (long)g6_19;
+ long f5g7_38 = f5_2 * (long)g7_19;
+ long f5g8_19 = f5 * (long)g8_19;
+ long f5g9_38 = f5_2 * (long)g9_19;
+ long f6g0 = f6 * (long)g0;
+ long f6g1 = f6 * (long)g1;
+ long f6g2 = f6 * (long)g2;
+ long f6g3 = f6 * (long)g3;
+ long f6g4_19 = f6 * (long)g4_19;
+ long f6g5_19 = f6 * (long)g5_19;
+ long f6g6_19 = f6 * (long)g6_19;
+ long f6g7_19 = f6 * (long)g7_19;
+ long f6g8_19 = f6 * (long)g8_19;
+ long f6g9_19 = f6 * (long)g9_19;
+ long f7g0 = f7 * (long)g0;
+ long f7g1_2 = f7_2 * (long)g1;
+ long f7g2 = f7 * (long)g2;
+ long f7g3_38 = f7_2 * (long)g3_19;
+ long f7g4_19 = f7 * (long)g4_19;
+ long f7g5_38 = f7_2 * (long)g5_19;
+ long f7g6_19 = f7 * (long)g6_19;
+ long f7g7_38 = f7_2 * (long)g7_19;
+ long f7g8_19 = f7 * (long)g8_19;
+ long f7g9_38 = f7_2 * (long)g9_19;
+ long f8g0 = f8 * (long)g0;
+ long f8g1 = f8 * (long)g1;
+ long f8g2_19 = f8 * (long)g2_19;
+ long f8g3_19 = f8 * (long)g3_19;
+ long f8g4_19 = f8 * (long)g4_19;
+ long f8g5_19 = f8 * (long)g5_19;
+ long f8g6_19 = f8 * (long)g6_19;
+ long f8g7_19 = f8 * (long)g7_19;
+ long f8g8_19 = f8 * (long)g8_19;
+ long f8g9_19 = f8 * (long)g9_19;
+ long f9g0 = f9 * (long)g0;
+ long f9g1_38 = f9_2 * (long)g1_19;
+ long f9g2_19 = f9 * (long)g2_19;
+ long f9g3_38 = f9_2 * (long)g3_19;
+ long f9g4_19 = f9 * (long)g4_19;
+ long f9g5_38 = f9_2 * (long)g5_19;
+ long f9g6_19 = f9 * (long)g6_19;
+ long f9g7_38 = f9_2 * (long)g7_19;
+ long f9g8_19 = f9 * (long)g8_19;
+ long f9g9_38 = f9_2 * (long)g9_19;
+
+ long h0 = f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38;
+ long h1 = f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19;
+ long h2 = f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38;
+ long h3 = f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19;
+ long h4 = f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38;
+ long h5 = f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19;
+ long h6 = f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38;
+ long h7 = f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19;
+ long h8 = f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38;
+ long h9 = f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0;
+
+ long carry0;
+ long carry1;
+ long carry2;
+ long carry3;
+ long carry4;
+ long carry5;
+ long carry6;
+ long carry7;
+ long carry8;
+ long carry9;
+
+ /*
+ |h0| <= (1.65*1.65*2^52*(1+19+19+19+19)+1.65*1.65*2^50*(38+38+38+38+38))
+ i.e. |h0| <= 1.4*2^60; narrower ranges for h2, h4, h6, h8
+ |h1| <= (1.65*1.65*2^51*(1+1+19+19+19+19+19+19+19+19))
+ i.e. |h1| <= 1.7*2^59; narrower ranges for h3, h5, h7, h9
+ */
+
+ carry0 = (h0 + (long)(1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+ carry4 = (h4 + (long)(1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ /* |h0| <= 2^25 */
+ /* |h4| <= 2^25 */
+ /* |h1| <= 1.71*2^59 */
+ /* |h5| <= 1.71*2^59 */
+
+ carry1 = (h1 + (long)(1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+ carry5 = (h5 + (long)(1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+ /* |h1| <= 2^24; from now on fits into int32 */
+ /* |h5| <= 2^24; from now on fits into int32 */
+ /* |h2| <= 1.41*2^60 */
+ /* |h6| <= 1.41*2^60 */
+
+ carry2 = (h2 + (long)(1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+ carry6 = (h6 + (long)(1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+ /* |h2| <= 2^25; from now on fits into int32 unchanged */
+ /* |h6| <= 2^25; from now on fits into int32 unchanged */
+ /* |h3| <= 1.71*2^59 */
+ /* |h7| <= 1.71*2^59 */
+
+ carry3 = (h3 + (long)(1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+ carry7 = (h7 + (long)(1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+ /* |h3| <= 2^24; from now on fits into int32 unchanged */
+ /* |h7| <= 2^24; from now on fits into int32 unchanged */
+ /* |h4| <= 1.72*2^34 */
+ /* |h8| <= 1.41*2^60 */
+
+ carry4 = (h4 + (long)(1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ carry8 = (h8 + (long)(1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+ /* |h4| <= 2^25; from now on fits into int32 unchanged */
+ /* |h8| <= 2^25; from now on fits into int32 unchanged */
+ /* |h5| <= 1.01*2^24 */
+ /* |h9| <= 1.71*2^59 */
+
+ carry9 = (h9 + (long)(1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+ /* |h9| <= 2^24; from now on fits into int32 unchanged */
+ /* |h0| <= 1.1*2^39 */
+
+ carry0 = (h0 + (long)(1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+ /* |h0| <= 2^25; from now on fits into int32 unchanged */
+ /* |h1| <= 1.01*2^24 */
+
+ h.x0 = (int)h0;
+ h.x1 = (int)h1;
+ h.x2 = (int)h2;
+ h.x3 = (int)h3;
+ h.x4 = (int)h4;
+ h.x5 = (int)h5;
+ h.x6 = (int)h6;
+ h.x7 = (int)h7;
+ h.x8 = (int)h8;
+ h.x9 = (int)h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_mul121666.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_mul121666.cs
new file mode 100644
index 000000000..70cb5caa0
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_mul121666.cs
@@ -0,0 +1,67 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+
+ /*
+ h = f * 121666
+ Can overlap h with f.
+
+ Preconditions:
+ |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+
+ Postconditions:
+ |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+ */
+
+ public static void fe_mul121666(out FieldElement h, ref FieldElement f)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+
+ var h0 = f0 * 121666L;
+ var h1 = f1 * 121666L;
+ var h2 = f2 * 121666L;
+ var h3 = f3 * 121666L;
+ var h4 = f4 * 121666L;
+ var h5 = f5 * 121666L;
+ var h6 = f6 * 121666L;
+ var h7 = f7 * 121666L;
+ var h8 = f8 * 121666L;
+ var h9 = f9 * 121666L;
+
+ var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+ var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+ var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+ var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+ var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+ var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+ var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+ var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+ var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+
+ h.x0 = (int)h0;
+ h.x1 = (int)h1;
+ h.x2 = (int)h2;
+ h.x3 = (int)h3;
+ h.x4 = (int)h4;
+ h.x5 = (int)h5;
+ h.x6 = (int)h6;
+ h.x7 = (int)h7;
+ h.x8 = (int)h8;
+ h.x9 = (int)h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_neg.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_neg.cs
new file mode 100644
index 000000000..7fcfe48bf
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_neg.cs
@@ -0,0 +1,51 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ h = -f
+
+ Preconditions:
+ |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+ Postconditions:
+ |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+ */
+ internal static void fe_neg(out FieldElement h, ref FieldElement f)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+ int h0 = -f0;
+ int h1 = -f1;
+ int h2 = -f2;
+ int h3 = -f3;
+ int h4 = -f4;
+ int h5 = -f5;
+ int h6 = -f6;
+ int h7 = -f7;
+ int h8 = -f8;
+ int h9 = -f9;
+
+ h.x0 = h0;
+ h.x1 = h1;
+ h.x2 = h2;
+ h.x3 = h3;
+ h.x4 = h4;
+ h.x5 = h5;
+ h.x6 = h6;
+ h.x7 = h7;
+ h.x8 = h8;
+ h.x9 = h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_pow22523.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_pow22523.cs
new file mode 100644
index 000000000..9aa36b2f3
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_pow22523.cs
@@ -0,0 +1,125 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ internal static void fe_pow22523(out FieldElement result, ref FieldElement z)
+ {
+ FieldElement t0, t1, t2;
+ int i;
+
+ /* qhasm: z2 = z1^2^1 */
+ /* asm 1: fe_sq(>z2=fe#1,z2=fe#1,>z2=fe#1); */
+ /* asm 2: fe_sq(>z2=t0,z2=t0,>z2=t0); */
+ fe_sq(out t0, ref z); //for (i = 1; i < 1; ++i) fe_sq(out t0, ref t0);
+
+ /* qhasm: z8 = z2^2^2 */
+ /* asm 1: fe_sq(>z8=fe#2,z8=fe#2,>z8=fe#2); */
+ /* asm 2: fe_sq(>z8=t1,z8=t1,>z8=t1); */
+ fe_sq(out t1, ref t0); for (i = 1; i < 2; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z9 = z1*z8 */
+ /* asm 1: fe_mul(>z9=fe#2,z9=t1,z11=fe#1,z11=t0,z22=fe#1,z22=fe#1,>z22=fe#1); */
+ /* asm 2: fe_sq(>z22=t0,z22=t0,>z22=t0); */
+ fe_sq(out t0, ref t0); //for (i = 1; i < 1; ++i) fe_sq(out t0, ref t0);
+
+ /* qhasm: z_5_0 = z9*z22 */
+ /* asm 1: fe_mul(>z_5_0=fe#1,z_5_0=t0,z_10_5=fe#2,z_10_5=fe#2,>z_10_5=fe#2); */
+ /* asm 2: fe_sq(>z_10_5=t1,z_10_5=t1,>z_10_5=t1); */
+ fe_sq(out t1, ref t0); for (i = 1; i < 5; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z_10_0 = z_10_5*z_5_0 */
+ /* asm 1: fe_mul(>z_10_0=fe#1,z_10_0=t0,z_20_10=fe#2,z_20_10=fe#2,>z_20_10=fe#2); */
+ /* asm 2: fe_sq(>z_20_10=t1,z_20_10=t1,>z_20_10=t1); */
+ fe_sq(out t1, ref t0); for (i = 1; i < 10; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z_20_0 = z_20_10*z_10_0 */
+ /* asm 1: fe_mul(>z_20_0=fe#2,z_20_0=t1,z_40_20=fe#3,z_40_20=fe#3,>z_40_20=fe#3); */
+ /* asm 2: fe_sq(>z_40_20=t2,z_40_20=t2,>z_40_20=t2); */
+ fe_sq(out t2, ref t1); for (i = 1; i < 20; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_40_0 = z_40_20*z_20_0 */
+ /* asm 1: fe_mul(>z_40_0=fe#2,z_40_0=t1,z_50_10=fe#2,z_50_10=fe#2,>z_50_10=fe#2); */
+ /* asm 2: fe_sq(>z_50_10=t1,z_50_10=t1,>z_50_10=t1); */
+ fe_sq(out t1, ref t1); for (i = 1; i < 10; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z_50_0 = z_50_10*z_10_0 */
+ /* asm 1: fe_mul(>z_50_0=fe#1,z_50_0=t0,z_100_50=fe#2,z_100_50=fe#2,>z_100_50=fe#2); */
+ /* asm 2: fe_sq(>z_100_50=t1,z_100_50=t1,>z_100_50=t1); */
+ fe_sq(out t1, ref t0); for (i = 1; i < 50; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z_100_0 = z_100_50*z_50_0 */
+ /* asm 1: fe_mul(>z_100_0=fe#2,z_100_0=t1,z_200_100=fe#3,z_200_100=fe#3,>z_200_100=fe#3); */
+ /* asm 2: fe_sq(>z_200_100=t2,z_200_100=t2,>z_200_100=t2); */
+ fe_sq(out t2, ref t1); for (i = 1; i < 100; ++i) fe_sq(out t2, ref t2);
+
+ /* qhasm: z_200_0 = z_200_100*z_100_0 */
+ /* asm 1: fe_mul(>z_200_0=fe#2,z_200_0=t1,z_250_50=fe#2,z_250_50=fe#2,>z_250_50=fe#2); */
+ /* asm 2: fe_sq(>z_250_50=t1,z_250_50=t1,>z_250_50=t1); */
+ fe_sq(out t1, ref t1); for (i = 1; i < 50; ++i) fe_sq(out t1, ref t1);
+
+ /* qhasm: z_250_0 = z_250_50*z_50_0 */
+ /* asm 1: fe_mul(>z_250_0=fe#1,z_250_0=t0,z_252_2=fe#1,z_252_2=fe#1,>z_252_2=fe#1); */
+ /* asm 2: fe_sq(>z_252_2=t0,z_252_2=t0,>z_252_2=t0); */
+ fe_sq(out t0, ref t0); for (i = 1; i < 2; ++i) fe_sq(out t0, ref t0);
+
+ /* qhasm: z_252_3 = z_252_2*z1 */
+ /* asm 1: fe_mul(>z_252_3=fe#12,z_252_3=out,> 26; h1 += carry0; h0 -= carry0 << 26;
+ var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+ var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+ var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+ var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+ var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+ var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+ carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+
+ var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+ var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+
+ carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+
+ h.x0 = (int)h0;
+ h.x1 = (int)h1;
+ h.x2 = (int)h2;
+ h.x3 = (int)h3;
+ h.x4 = (int)h4;
+ h.x5 = (int)h5;
+ h.x6 = (int)h6;
+ h.x7 = (int)h7;
+ h.x8 = (int)h8;
+ h.x9 = (int)h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_sq2.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_sq2.cs
new file mode 100644
index 000000000..313e83a59
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_sq2.cs
@@ -0,0 +1,154 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+h = 2 * f * f
+Can overlap h with f.
+
+Preconditions:
+ |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+
+Postconditions:
+ |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
+*/
+
+ /*
+ See fe_mul.c for discussion of implementation strategy.
+ */
+ internal static void fe_sq2(out FieldElement h, ref FieldElement f)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+
+ int f0_2 = 2 * f0;
+ int f1_2 = 2 * f1;
+ int f2_2 = 2 * f2;
+ int f3_2 = 2 * f3;
+ int f4_2 = 2 * f4;
+ int f5_2 = 2 * f5;
+ int f6_2 = 2 * f6;
+ int f7_2 = 2 * f7;
+ int f5_38 = 38 * f5; /* 1.959375*2^30 */
+ int f6_19 = 19 * f6; /* 1.959375*2^30 */
+ int f7_38 = 38 * f7; /* 1.959375*2^30 */
+ int f8_19 = 19 * f8; /* 1.959375*2^30 */
+ int f9_38 = 38 * f9; /* 1.959375*2^30 */
+
+ var f0f0 = f0 * (long)f0;
+ var f0f1_2 = f0_2 * (long)f1;
+ var f0f2_2 = f0_2 * (long)f2;
+ var f0f3_2 = f0_2 * (long)f3;
+ var f0f4_2 = f0_2 * (long)f4;
+ var f0f5_2 = f0_2 * (long)f5;
+ var f0f6_2 = f0_2 * (long)f6;
+ var f0f7_2 = f0_2 * (long)f7;
+ var f0f8_2 = f0_2 * (long)f8;
+ var f0f9_2 = f0_2 * (long)f9;
+ var f1f1_2 = f1_2 * (long)f1;
+ var f1f2_2 = f1_2 * (long)f2;
+ var f1f3_4 = f1_2 * (long)f3_2;
+ var f1f4_2 = f1_2 * (long)f4;
+ var f1f5_4 = f1_2 * (long)f5_2;
+ var f1f6_2 = f1_2 * (long)f6;
+ var f1f7_4 = f1_2 * (long)f7_2;
+ var f1f8_2 = f1_2 * (long)f8;
+ var f1f9_76 = f1_2 * (long)f9_38;
+ var f2f2 = f2 * (long)f2;
+ var f2f3_2 = f2_2 * (long)f3;
+ var f2f4_2 = f2_2 * (long)f4;
+ var f2f5_2 = f2_2 * (long)f5;
+ var f2f6_2 = f2_2 * (long)f6;
+ var f2f7_2 = f2_2 * (long)f7;
+ var f2f8_38 = f2_2 * (long)f8_19;
+ var f2f9_38 = f2 * (long)f9_38;
+ var f3f3_2 = f3_2 * (long)f3;
+ var f3f4_2 = f3_2 * (long)f4;
+ var f3f5_4 = f3_2 * (long)f5_2;
+ var f3f6_2 = f3_2 * (long)f6;
+ var f3f7_76 = f3_2 * (long)f7_38;
+ var f3f8_38 = f3_2 * (long)f8_19;
+ var f3f9_76 = f3_2 * (long)f9_38;
+ var f4f4 = f4 * (long)f4;
+ var f4f5_2 = f4_2 * (long)f5;
+ var f4f6_38 = f4_2 * (long)f6_19;
+ var f4f7_38 = f4 * (long)f7_38;
+ var f4f8_38 = f4_2 * (long)f8_19;
+ var f4f9_38 = f4 * (long)f9_38;
+ var f5f5_38 = f5 * (long)f5_38;
+ var f5f6_38 = f5_2 * (long)f6_19;
+ var f5f7_76 = f5_2 * (long)f7_38;
+ var f5f8_38 = f5_2 * (long)f8_19;
+ var f5f9_76 = f5_2 * (long)f9_38;
+ var f6f6_19 = f6 * (long)f6_19;
+ var f6f7_38 = f6 * (long)f7_38;
+ var f6f8_38 = f6_2 * (long)f8_19;
+ var f6f9_38 = f6 * (long)f9_38;
+ var f7f7_38 = f7 * (long)f7_38;
+ var f7f8_38 = f7_2 * (long)f8_19;
+ var f7f9_76 = f7_2 * (long)f9_38;
+ var f8f8_19 = f8 * (long)f8_19;
+ var f8f9_38 = f8 * (long)f9_38;
+ var f9f9_38 = f9 * (long)f9_38;
+
+ var h0 = f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38;
+ var h1 = f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38;
+ var h2 = f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19;
+ var h3 = f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38;
+ var h4 = f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38;
+ var h5 = f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38;
+ var h6 = f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19;
+ var h7 = f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38;
+ var h8 = f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38;
+ var h9 = f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2;
+
+ h0 += h0;
+ h1 += h1;
+ h2 += h2;
+ h3 += h3;
+ h4 += h4;
+ h5 += h5;
+ h6 += h6;
+ h7 += h7;
+ h8 += h8;
+ h9 += h9;
+
+ var carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+ var carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+ var carry1 = (h1 + (1 << 24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+ var carry5 = (h5 + (1 << 24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+ var carry2 = (h2 + (1 << 25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+ var carry6 = (h6 + (1 << 25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+ var carry3 = (h3 + (1 << 24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+ var carry7 = (h7 + (1 << 24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+ carry4 = (h4 + (1 << 25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+
+ var carry8 = (h8 + (1 << 25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+ var carry9 = (h9 + (1 << 24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+
+ carry0 = (h0 + (1 << 25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+
+ h.x0 = (int)h0;
+ h.x1 = (int)h1;
+ h.x2 = (int)h2;
+ h.x3 = (int)h3;
+ h.x4 = (int)h4;
+ h.x5 = (int)h5;
+ h.x6 = (int)h6;
+ h.x7 = (int)h7;
+ h.x8 = (int)h8;
+ h.x9 = (int)h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_sub.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_sub.cs
new file mode 100644
index 000000000..65f7dcfc9
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_sub.cs
@@ -0,0 +1,66 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ h = f - g
+ Can overlap h with f or g.
+
+ Preconditions:
+ |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+ |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+ Postconditions:
+ |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+ */
+
+ internal static void fe_sub(out FieldElement h, ref FieldElement f, ref FieldElement g)
+ {
+ int f0 = f.x0;
+ int f1 = f.x1;
+ int f2 = f.x2;
+ int f3 = f.x3;
+ int f4 = f.x4;
+ int f5 = f.x5;
+ int f6 = f.x6;
+ int f7 = f.x7;
+ int f8 = f.x8;
+ int f9 = f.x9;
+
+ int g0 = g.x0;
+ int g1 = g.x1;
+ int g2 = g.x2;
+ int g3 = g.x3;
+ int g4 = g.x4;
+ int g5 = g.x5;
+ int g6 = g.x6;
+ int g7 = g.x7;
+ int g8 = g.x8;
+ int g9 = g.x9;
+
+ int h0 = f0 - g0;
+ int h1 = f1 - g1;
+ int h2 = f2 - g2;
+ int h3 = f3 - g3;
+ int h4 = f4 - g4;
+ int h5 = f5 - g5;
+ int h6 = f6 - g6;
+ int h7 = f7 - g7;
+ int h8 = f8 - g8;
+ int h9 = f9 - g9;
+
+ h.x0 = h0;
+ h.x1 = h1;
+ h.x2 = h2;
+ h.x3 = h3;
+ h.x4 = h4;
+ h.x5 = h5;
+ h.x6 = h6;
+ h.x7 = h7;
+ h.x8 = h8;
+ h.x9 = h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_tobytes.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_tobytes.cs
new file mode 100644
index 000000000..555ecf0d5
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/fe_tobytes.cs
@@ -0,0 +1,145 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class FieldOperations
+ {
+ /*
+ Preconditions:
+ |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+
+ Write p=2^255-19; q=floor(h/p).
+ Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
+
+ Proof:
+ Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
+ Also have |h-2^230 h9|<2^231 so |19 2^(-255)(h-2^230 h9)|<1/4.
+
+ Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
+ Then 0> 0);
+ s[offset + 1] = (byte) (h0 >> 8);
+ s[offset + 2] = (byte) (h0 >> 16);
+ s[offset + 3] = (byte) ((h0 >> 24) | (h1 << 2));
+ s[offset + 4] = (byte) (h1 >> 6);
+ s[offset + 5] = (byte) (h1 >> 14);
+ s[offset + 6] = (byte) ((h1 >> 22) | (h2 << 3));
+ s[offset + 7] = (byte) (h2 >> 5);
+ s[offset + 8] = (byte) (h2 >> 13);
+ s[offset + 9] = (byte) ((h2 >> 21) | (h3 << 5));
+ s[offset + 10] = (byte) (h3 >> 3);
+ s[offset + 11] = (byte) (h3 >> 11);
+ s[offset + 12] = (byte) ((h3 >> 19) | (h4 << 6));
+ s[offset + 13] = (byte) (h4 >> 2);
+ s[offset + 14] = (byte) (h4 >> 10);
+ s[offset + 15] = (byte) (h4 >> 18);
+ s[offset + 16] = (byte) (h5 >> 0);
+ s[offset + 17] = (byte) (h5 >> 8);
+ s[offset + 18] = (byte) (h5 >> 16);
+ s[offset + 19] = (byte) ((h5 >> 24) | (h6 << 1));
+ s[offset + 20] = (byte) (h6 >> 7);
+ s[offset + 21] = (byte) (h6 >> 15);
+ s[offset + 22] = (byte) ((h6 >> 23) | (h7 << 3));
+ s[offset + 23] = (byte) (h7 >> 5);
+ s[offset + 24] = (byte) (h7 >> 13);
+ s[offset + 25] = (byte) ((h7 >> 21) | (h8 << 4));
+ s[offset + 26] = (byte) (h8 >> 4);
+ s[offset + 27] = (byte) (h8 >> 12);
+ s[offset + 28] = (byte) ((h8 >> 20) | (h9 << 6));
+ s[offset + 29] = (byte) (h9 >> 2);
+ s[offset + 30] = (byte) (h9 >> 10);
+ s[offset + 31] = (byte) (h9 >> 18);
+ }
+ }
+
+ internal static void fe_reduce(out FieldElement hr, ref FieldElement h)
+ {
+ int h0 = h.x0;
+ int h1 = h.x1;
+ int h2 = h.x2;
+ int h3 = h.x3;
+ int h4 = h.x4;
+ int h5 = h.x5;
+ int h6 = h.x6;
+ int h7 = h.x7;
+ int h8 = h.x8;
+ int h9 = h.x9;
+
+ int q;
+
+ q = (19 * h9 + (1 << 24)) >> 25;
+ q = (h0 + q) >> 26;
+ q = (h1 + q) >> 25;
+ q = (h2 + q) >> 26;
+ q = (h3 + q) >> 25;
+ q = (h4 + q) >> 26;
+ q = (h5 + q) >> 25;
+ q = (h6 + q) >> 26;
+ q = (h7 + q) >> 25;
+ q = (h8 + q) >> 26;
+ q = (h9 + q) >> 25;
+
+ /* Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20. */
+ h0 += 19 * q;
+ /* Goal: Output h-2^255 q, which is between 0 and 2^255-20. */
+
+ var carry0 = h0 >> 26; h1 += carry0; h0 -= carry0 << 26;
+ var carry1 = h1 >> 25; h2 += carry1; h1 -= carry1 << 25;
+ var carry2 = h2 >> 26; h3 += carry2; h2 -= carry2 << 26;
+ var carry3 = h3 >> 25; h4 += carry3; h3 -= carry3 << 25;
+ var carry4 = h4 >> 26; h5 += carry4; h4 -= carry4 << 26;
+ var carry5 = h5 >> 25; h6 += carry5; h5 -= carry5 << 25;
+ var carry6 = h6 >> 26; h7 += carry6; h6 -= carry6 << 26;
+ var carry7 = h7 >> 25; h8 += carry7; h7 -= carry7 << 25;
+ var carry8 = h8 >> 26; h9 += carry8; h8 -= carry8 << 26;
+ var carry9 = h9 >> 25; h9 -= carry9 << 25;
+ /* h10 = carry9 */
+
+ hr.x0 = h0;
+ hr.x1 = h1;
+ hr.x2 = h2;
+ hr.x3 = h3;
+ hr.x4 = h4;
+ hr.x5 = h5;
+ hr.x6 = h6;
+ hr.x7 = h7;
+ hr.x8 = h8;
+ hr.x9 = h9;
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_add.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_add.cs
new file mode 100644
index 000000000..415173336
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_add.cs
@@ -0,0 +1,73 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class GroupOperations
+ {
+ /*
+ r = p + q
+ */
+
+ internal static void ge_add(out GroupElementP1P1 r, ref GroupElementP3 p, ref GroupElementCached q)
+ {
+ FieldElement t0;
+
+ /* qhasm: YpX1 = Y1+X1 */
+ /* asm 1: fe_add(>YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,ZZ=fe#1,ZZ=r.X,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,> 3] >> (i & 7)));
+
+ for (int i = 0; i < 256; ++i)
+ {
+ if (r[i] != 0)
+ {
+ for (int b = 1; b <= 6 && (i + b) < 256; ++b)
+ {
+ if (r[i + b] != 0)
+ {
+ if (r[i] + (r[i + b] << b) <= 15)
+ {
+ r[i] += (sbyte)(r[i + b] << b); r[i + b] = 0;
+ }
+ else if (r[i] - (r[i + b] << b) >= -15)
+ {
+ r[i] -= (sbyte)(r[i + b] << b);
+ for (int k = i + b; k < 256; ++k)
+ {
+ if (r[k] == 0)
+ {
+ r[k] = 1;
+ break;
+ }
+ r[k] = 0;
+ }
+ }
+ else
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ r = a * A + b * B
+ where a = a[0]+256*a[1]+...+256^31 a[31].
+ and b = b[0]+256*b[1]+...+256^31 b[31].
+ B is the Ed25519 base point (x,4/5) with x positive.
+ */
+
+ public static void ge_double_scalarmult_vartime(out GroupElementP2 r, byte[] a, ref GroupElementP3 A, byte[] b)
+ {
+ GroupElementPreComp[] Bi = LookupTables.Base2;
+ // todo: Perhaps remove these allocations?
+ sbyte[] aslide = new sbyte[256];
+ sbyte[] bslide = new sbyte[256];
+ GroupElementCached[] Ai = new GroupElementCached[8]; /* A,3A,5A,7A,9A,11A,13A,15A */
+ GroupElementP1P1 t;
+ GroupElementP3 u;
+ GroupElementP3 A2;
+ int i;
+
+ slide(aslide, a);
+ slide(bslide, b);
+
+ ge_p3_to_cached(out Ai[0], ref A);
+ ge_p3_dbl(out t, ref A); ge_p1p1_to_p3(out A2, ref t);
+ ge_add(out t, ref A2, ref Ai[0]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[1], ref u);
+ ge_add(out t, ref A2, ref Ai[1]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[2], ref u);
+ ge_add(out t, ref A2, ref Ai[2]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[3], ref u);
+ ge_add(out t, ref A2, ref Ai[3]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[4], ref u);
+ ge_add(out t, ref A2, ref Ai[4]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[5], ref u);
+ ge_add(out t, ref A2, ref Ai[5]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[6], ref u);
+ ge_add(out t, ref A2, ref Ai[6]); ge_p1p1_to_p3(out u, ref t); ge_p3_to_cached(out Ai[7], ref u);
+
+ ge_p2_0(out r);
+
+ for (i = 255; i >= 0; --i)
+ {
+ if ((aslide[i] != 0) || (bslide[i] != 0)) break;
+ }
+
+ for (; i >= 0; --i)
+ {
+ ge_p2_dbl(out t, ref r);
+
+ if (aslide[i] > 0)
+ {
+ ge_p1p1_to_p3(out u, ref t);
+ ge_add(out t, ref u, ref Ai[aslide[i] / 2]);
+ }
+ else if (aslide[i] < 0)
+ {
+ ge_p1p1_to_p3(out u, ref t);
+ ge_sub(out t, ref u, ref Ai[(-aslide[i]) / 2]);
+ }
+
+ if (bslide[i] > 0)
+ {
+ ge_p1p1_to_p3(out u, ref t);
+ ge_madd(out t, ref u, ref Bi[bslide[i] / 2]);
+ }
+ else if (bslide[i] < 0)
+ {
+ ge_p1p1_to_p3(out u, ref t);
+ ge_msub(out t, ref u, ref Bi[(-bslide[i]) / 2]);
+ }
+
+ ge_p1p1_to_p2(out r, ref t);
+ }
+ }
+
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_frombytes.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_frombytes.cs
new file mode 100644
index 000000000..7ebb9f956
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_frombytes.cs
@@ -0,0 +1,50 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class GroupOperations
+ {
+ public static int ge_frombytes_negate_vartime(out GroupElementP3 h, byte[] data, int offset)
+ {
+ FieldElement u, v, v3, vxx, check;
+
+ FieldOperations.fe_frombytes(out h.Y, data, offset);
+ FieldOperations.fe_1(out h.Z);
+ FieldOperations.fe_sq(out u, ref h.Y);
+ FieldOperations.fe_mul(out v, ref u, ref LookupTables.d);
+ FieldOperations.fe_sub(out u, ref u, ref h.Z); /* u = y^2-1 */
+ FieldOperations.fe_add(out v, ref v, ref h.Z); /* v = dy^2+1 */
+
+ FieldOperations.fe_sq(out v3, ref v);
+ FieldOperations.fe_mul(out v3, ref v3, ref v); /* v3 = v^3 */
+ FieldOperations.fe_sq(out h.X, ref v3);
+ FieldOperations.fe_mul(out h.X, ref h.X, ref v);
+ FieldOperations.fe_mul(out h.X, ref h.X, ref u); /* x = uv^7 */
+
+ FieldOperations.fe_pow22523(out h.X, ref h.X); /* x = (uv^7)^((q-5)/8) */
+ FieldOperations.fe_mul(out h.X, ref h.X, ref v3);
+ FieldOperations.fe_mul(out h.X, ref h.X, ref u); /* x = uv^3(uv^7)^((q-5)/8) */
+
+ FieldOperations.fe_sq(out vxx, ref h.X);
+ FieldOperations.fe_mul(out vxx, ref vxx, ref v);
+ FieldOperations.fe_sub(out check, ref vxx, ref u); /* vx^2-u */
+ if (FieldOperations.fe_isnonzero(ref check) != 0)
+ {
+ FieldOperations.fe_add(out check, ref vxx, ref u); /* vx^2+u */
+ if (FieldOperations.fe_isnonzero(ref check) != 0)
+ {
+ h = default(GroupElementP3);
+ return -1;
+ }
+ FieldOperations.fe_mul(out h.X, ref h.X, ref LookupTables.sqrtm1);
+ }
+
+ if (FieldOperations.fe_isnegative(ref h.X) == (data[offset + 31] >> 7))
+ FieldOperations.fe_neg(out h.X, ref h.X);
+
+ FieldOperations.fe_mul(out h.T, ref h.X, ref h.Y);
+ return 0;
+ }
+
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_madd.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_madd.cs
new file mode 100644
index 000000000..6689c8de9
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_madd.cs
@@ -0,0 +1,69 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class GroupOperations
+ {
+ /*
+ r = p + q
+ */
+ public static void ge_madd(out GroupElementP1P1 r, ref GroupElementP3 p, ref GroupElementPreComp q)
+ {
+ FieldElement t0;
+
+ /* qhasm: YpX1 = Y1+X1 */
+ /* asm 1: fe_add(>YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,XX=fe#1,XX=r.X,YY=fe#3,YY=r.Z,B=fe#4,B=r.T,A=fe#2,A=r.Y,AA=fe#5,AA=t0,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,X3=fe#1,X3=r.X,T3=fe#4,T3=r.T,>= 31; /* 1: yes; 0: no */
+ return (byte)y;
+ }
+
+ static byte negative(sbyte b)
+ {
+ var x = unchecked((ulong)b); /* 18446744073709551361..18446744073709551615: yes; 0..255: no */
+ x >>= 63; /* 1: yes; 0: no */
+ return (byte)x;
+ }
+
+ static void cmov(ref GroupElementPreComp t, ref GroupElementPreComp u, byte b)
+ {
+ FieldOperations.fe_cmov(ref t.yplusx, ref u.yplusx, b);
+ FieldOperations.fe_cmov(ref t.yminusx, ref u.yminusx, b);
+ FieldOperations.fe_cmov(ref t.xy2d, ref u.xy2d, b);
+ }
+
+ static void select(out GroupElementPreComp t, int pos, sbyte b)
+ {
+ GroupElementPreComp minust;
+ var bnegative = negative(b);
+ var babs = (byte)(b - (((-bnegative) & b) << 1));
+
+ ge_precomp_0(out t);
+ var table = LookupTables.Base[pos];
+ cmov(ref t, ref table[0], equal(babs, 1));
+ cmov(ref t, ref table[1], equal(babs, 2));
+ cmov(ref t, ref table[2], equal(babs, 3));
+ cmov(ref t, ref table[3], equal(babs, 4));
+ cmov(ref t, ref table[4], equal(babs, 5));
+ cmov(ref t, ref table[5], equal(babs, 6));
+ cmov(ref t, ref table[6], equal(babs, 7));
+ cmov(ref t, ref table[7], equal(babs, 8));
+ minust.yplusx = t.yminusx;
+ minust.yminusx = t.yplusx;
+ FieldOperations.fe_neg(out minust.xy2d, ref t.xy2d);
+ cmov(ref t, ref minust, bnegative);
+ }
+
+ /*
+ h = a * B
+ where a = a[0]+256*a[1]+...+256^31 a[31]
+ B is the Ed25519 base point (x,4/5) with x positive.
+
+ Preconditions:
+ a[31] <= 127
+ */
+
+ public static void ge_scalarmult_base(out GroupElementP3 h, byte[] a, int offset)
+ {
+ // todo: Perhaps remove this allocation
+ var e = new sbyte[64];
+ sbyte carry;
+
+ GroupElementP1P1 r;
+ GroupElementP2 s;
+ GroupElementPreComp t;
+
+ for (int i = 0; i < 32; ++i)
+ {
+ e[2 * i + 0] = (sbyte)((a[offset + i] >> 0) & 15);
+ e[2 * i + 1] = (sbyte)((a[offset + i] >> 4) & 15);
+ }
+ /* each e[i] is between 0 and 15 */
+ /* e[63] is between 0 and 7 */
+
+ carry = 0;
+ for (int i = 0; i < 63; ++i)
+ {
+ e[i] += carry;
+ carry = (sbyte)(e[i] + 8);
+ carry >>= 4;
+ e[i] -= (sbyte)(carry << 4);
+ }
+ e[63] += carry;
+ /* each e[i] is between -8 and 8 */
+
+ ge_p3_0(out h);
+ for (int i = 1; i < 64; i += 2)
+ {
+ select(out t, i / 2, e[i]);
+ ge_madd(out r, ref h, ref t); ge_p1p1_to_p3(out h, ref r);
+ }
+
+ ge_p3_dbl(out r, ref h); ge_p1p1_to_p2(out s, ref r);
+ ge_p2_dbl(out r, ref s); ge_p1p1_to_p2(out s, ref r);
+ ge_p2_dbl(out r, ref s); ge_p1p1_to_p2(out s, ref r);
+ ge_p2_dbl(out r, ref s); ge_p1p1_to_p3(out h, ref r);
+
+ for (int i = 0; i < 64; i += 2)
+ {
+ select(out t, i / 2, e[i]);
+ ge_madd(out r, ref h, ref t); ge_p1p1_to_p3(out h, ref r);
+ }
+ }
+
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_sub.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_sub.cs
new file mode 100644
index 000000000..ff71c4663
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/ge_sub.cs
@@ -0,0 +1,74 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class GroupOperations
+ {
+ /*
+ r = p - q
+ */
+
+ public static void ge_sub(out GroupElementP1P1 r, ref GroupElementP3 p, ref GroupElementCached q)
+ {
+ FieldElement t0;
+
+ /* qhasm: YpX1 = Y1+X1 */
+ /* asm 1: fe_add(>YpX1=fe#1,YpX1=r.X,YmX1=fe#2,YmX1=r.Y,A=fe#3,A=r.Z,B=fe#2,B=r.Y,C=fe#4,C=r.T,ZZ=fe#1,ZZ=r.X,D=fe#5,D=t0,X3=fe#1,X3=r.X,Y3=fe#2,Y3=r.Y,Z3=fe#3,Z3=r.Z,T3=fe#4,T3=r.T,> 5);
+ long a2 = 2097151 & (load_3(a, 5) >> 2);
+ long a3 = 2097151 & (load_4(a, 7) >> 7);
+ long a4 = 2097151 & (load_4(a, 10) >> 4);
+ long a5 = 2097151 & (load_3(a, 13) >> 1);
+ long a6 = 2097151 & (load_4(a, 15) >> 6);
+ long a7 = 2097151 & (load_3(a, 18) >> 3);
+ long a8 = 2097151 & load_3(a, 21);
+ long a9 = 2097151 & (load_4(a, 23) >> 5);
+ long a10 = 2097151 & (load_3(a, 26) >> 2);
+ long a11 = (load_4(a, 28) >> 7);
+ long b0 = 2097151 & load_3(b, 0);
+ long b1 = 2097151 & (load_4(b, 2) >> 5);
+ long b2 = 2097151 & (load_3(b, 5) >> 2);
+ long b3 = 2097151 & (load_4(b, 7) >> 7);
+ long b4 = 2097151 & (load_4(b, 10) >> 4);
+ long b5 = 2097151 & (load_3(b, 13) >> 1);
+ long b6 = 2097151 & (load_4(b, 15) >> 6);
+ long b7 = 2097151 & (load_3(b, 18) >> 3);
+ long b8 = 2097151 & load_3(b, 21);
+ long b9 = 2097151 & (load_4(b, 23) >> 5);
+ long b10 = 2097151 & (load_3(b, 26) >> 2);
+ long b11 = (load_4(b, 28) >> 7);
+ long c0 = 2097151 & load_3(c, 0);
+ long c1 = 2097151 & (load_4(c, 2) >> 5);
+ long c2 = 2097151 & (load_3(c, 5) >> 2);
+ long c3 = 2097151 & (load_4(c, 7) >> 7);
+ long c4 = 2097151 & (load_4(c, 10) >> 4);
+ long c5 = 2097151 & (load_3(c, 13) >> 1);
+ long c6 = 2097151 & (load_4(c, 15) >> 6);
+ long c7 = 2097151 & (load_3(c, 18) >> 3);
+ long c8 = 2097151 & load_3(c, 21);
+ long c9 = 2097151 & (load_4(c, 23) >> 5);
+ long c10 = 2097151 & (load_3(c, 26) >> 2);
+ long c11 = (load_4(c, 28) >> 7);
+ long s0;
+ long s1;
+ long s2;
+ long s3;
+ long s4;
+ long s5;
+ long s6;
+ long s7;
+ long s8;
+ long s9;
+ long s10;
+ long s11;
+ long s12;
+ long s13;
+ long s14;
+ long s15;
+ long s16;
+ long s17;
+ long s18;
+ long s19;
+ long s20;
+ long s21;
+ long s22;
+ long s23;
+ long carry0;
+ long carry1;
+ long carry2;
+ long carry3;
+ long carry4;
+ long carry5;
+ long carry6;
+ long carry7;
+ long carry8;
+ long carry9;
+ long carry10;
+ long carry11;
+ long carry12;
+ long carry13;
+ long carry14;
+ long carry15;
+ long carry16;
+ long carry17;
+ long carry18;
+ long carry19;
+ long carry20;
+ long carry21;
+ long carry22;
+
+ s0 = c0 + a0 * b0;
+ s1 = c1 + a0 * b1 + a1 * b0;
+ s2 = c2 + a0 * b2 + a1 * b1 + a2 * b0;
+ s3 = c3 + a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0;
+ s4 = c4 + a0 * b4 + a1 * b3 + a2 * b2 + a3 * b1 + a4 * b0;
+ s5 = c5 + a0 * b5 + a1 * b4 + a2 * b3 + a3 * b2 + a4 * b1 + a5 * b0;
+ s6 = c6 + a0 * b6 + a1 * b5 + a2 * b4 + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0;
+ s7 = c7 + a0 * b7 + a1 * b6 + a2 * b5 + a3 * b4 + a4 * b3 + a5 * b2 + a6 * b1 + a7 * b0;
+ s8 = c8 + a0 * b8 + a1 * b7 + a2 * b6 + a3 * b5 + a4 * b4 + a5 * b3 + a6 * b2 + a7 * b1 + a8 * b0;
+ s9 = c9 + a0 * b9 + a1 * b8 + a2 * b7 + a3 * b6 + a4 * b5 + a5 * b4 + a6 * b3 + a7 * b2 + a8 * b1 + a9 * b0;
+ s10 = c10 + a0 * b10 + a1 * b9 + a2 * b8 + a3 * b7 + a4 * b6 + a5 * b5 + a6 * b4 + a7 * b3 + a8 * b2 + a9 * b1 + a10 * b0;
+ s11 = c11 + a0 * b11 + a1 * b10 + a2 * b9 + a3 * b8 + a4 * b7 + a5 * b6 + a6 * b5 + a7 * b4 + a8 * b3 + a9 * b2 + a10 * b1 + a11 * b0;
+ s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 + a7 * b5 + a8 * b4 + a9 * b3 + a10 * b2 + a11 * b1;
+ s13 = a2 * b11 + a3 * b10 + a4 * b9 + a5 * b8 + a6 * b7 + a7 * b6 + a8 * b5 + a9 * b4 + a10 * b3 + a11 * b2;
+ s14 = a3 * b11 + a4 * b10 + a5 * b9 + a6 * b8 + a7 * b7 + a8 * b6 + a9 * b5 + a10 * b4 + a11 * b3;
+ s15 = a4 * b11 + a5 * b10 + a6 * b9 + a7 * b8 + a8 * b7 + a9 * b6 + a10 * b5 + a11 * b4;
+ s16 = a5 * b11 + a6 * b10 + a7 * b9 + a8 * b8 + a9 * b7 + a10 * b6 + a11 * b5;
+ s17 = a6 * b11 + a7 * b10 + a8 * b9 + a9 * b8 + a10 * b7 + a11 * b6;
+ s18 = a7 * b11 + a8 * b10 + a9 * b9 + a10 * b8 + a11 * b7;
+ s19 = a8 * b11 + a9 * b10 + a10 * b9 + a11 * b8;
+ s20 = a9 * b11 + a10 * b10 + a11 * b9;
+ s21 = a10 * b11 + a11 * b10;
+ s22 = a11 * b11;
+ s23 = 0;
+
+ carry0 = (s0 + (1 << 20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry2 = (s2 + (1 << 20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry4 = (s4 + (1 << 20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+ carry12 = (s12 + (1 << 20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
+ carry14 = (s14 + (1 << 20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
+ carry16 = (s16 + (1 << 20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
+ carry18 = (s18 + (1 << 20)) >> 21; s19 += carry18; s18 -= carry18 << 21;
+ carry20 = (s20 + (1 << 20)) >> 21; s21 += carry20; s20 -= carry20 << 21;
+ carry22 = (s22 + (1 << 20)) >> 21; s23 += carry22; s22 -= carry22 << 21;
+
+ carry1 = (s1 + (1 << 20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry3 = (s3 + (1 << 20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry5 = (s5 + (1 << 20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+ carry13 = (s13 + (1 << 20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
+ carry15 = (s15 + (1 << 20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
+ carry17 = (s17 + (1 << 20)) >> 21; s18 += carry17; s17 -= carry17 << 21;
+ carry19 = (s19 + (1 << 20)) >> 21; s20 += carry19; s19 -= carry19 << 21;
+ carry21 = (s21 + (1 << 20)) >> 21; s22 += carry21; s21 -= carry21 << 21;
+
+ s11 += s23 * 666643;
+ s12 += s23 * 470296;
+ s13 += s23 * 654183;
+ s14 -= s23 * 997805;
+ s15 += s23 * 136657;
+ s16 -= s23 * 683901;
+ s23 = 0;
+
+ s10 += s22 * 666643;
+ s11 += s22 * 470296;
+ s12 += s22 * 654183;
+ s13 -= s22 * 997805;
+ s14 += s22 * 136657;
+ s15 -= s22 * 683901;
+ s22 = 0;
+
+ s9 += s21 * 666643;
+ s10 += s21 * 470296;
+ s11 += s21 * 654183;
+ s12 -= s21 * 997805;
+ s13 += s21 * 136657;
+ s14 -= s21 * 683901;
+ s21 = 0;
+
+ s8 += s20 * 666643;
+ s9 += s20 * 470296;
+ s10 += s20 * 654183;
+ s11 -= s20 * 997805;
+ s12 += s20 * 136657;
+ s13 -= s20 * 683901;
+ s20 = 0;
+
+ s7 += s19 * 666643;
+ s8 += s19 * 470296;
+ s9 += s19 * 654183;
+ s10 -= s19 * 997805;
+ s11 += s19 * 136657;
+ s12 -= s19 * 683901;
+ s19 = 0;
+
+ s6 += s18 * 666643;
+ s7 += s18 * 470296;
+ s8 += s18 * 654183;
+ s9 -= s18 * 997805;
+ s10 += s18 * 136657;
+ s11 -= s18 * 683901;
+ s18 = 0;
+
+ carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+ carry12 = (s12 + (1 << 20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
+ carry14 = (s14 + (1 << 20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
+ carry16 = (s16 + (1 << 20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
+
+ carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+ carry13 = (s13 + (1 << 20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
+ carry15 = (s15 + (1 << 20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
+
+ s5 += s17 * 666643;
+ s6 += s17 * 470296;
+ s7 += s17 * 654183;
+ s8 -= s17 * 997805;
+ s9 += s17 * 136657;
+ s10 -= s17 * 683901;
+ s17 = 0;
+
+ s4 += s16 * 666643;
+ s5 += s16 * 470296;
+ s6 += s16 * 654183;
+ s7 -= s16 * 997805;
+ s8 += s16 * 136657;
+ s9 -= s16 * 683901;
+ s16 = 0;
+
+ s3 += s15 * 666643;
+ s4 += s15 * 470296;
+ s5 += s15 * 654183;
+ s6 -= s15 * 997805;
+ s7 += s15 * 136657;
+ s8 -= s15 * 683901;
+ s15 = 0;
+
+ s2 += s14 * 666643;
+ s3 += s14 * 470296;
+ s4 += s14 * 654183;
+ s5 -= s14 * 997805;
+ s6 += s14 * 136657;
+ s7 -= s14 * 683901;
+ s14 = 0;
+
+ s1 += s13 * 666643;
+ s2 += s13 * 470296;
+ s3 += s13 * 654183;
+ s4 -= s13 * 997805;
+ s5 += s13 * 136657;
+ s6 -= s13 * 683901;
+ s13 = 0;
+
+ s0 += s12 * 666643;
+ s1 += s12 * 470296;
+ s2 += s12 * 654183;
+ s3 -= s12 * 997805;
+ s4 += s12 * 136657;
+ s5 -= s12 * 683901;
+ s12 = 0;
+
+ carry0 = (s0 + (1 << 20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry2 = (s2 + (1 << 20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry4 = (s4 + (1 << 20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+ carry1 = (s1 + (1 << 20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry3 = (s3 + (1 << 20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry5 = (s5 + (1 << 20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+ s0 += s12 * 666643;
+ s1 += s12 * 470296;
+ s2 += s12 * 654183;
+ s3 -= s12 * 997805;
+ s4 += s12 * 136657;
+ s5 -= s12 * 683901;
+ s12 = 0;
+
+ carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+ carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+ s0 += s12 * 666643;
+ s1 += s12 * 470296;
+ s2 += s12 * 654183;
+ s3 -= s12 * 997805;
+ s4 += s12 * 136657;
+ s5 -= s12 * 683901;
+ s12 = 0;
+
+ carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+ unchecked
+ {
+ s[0] = (byte)(s0 >> 0);
+ s[1] = (byte)(s0 >> 8);
+ s[2] = (byte)((s0 >> 16) | (s1 << 5));
+ s[3] = (byte)(s1 >> 3);
+ s[4] = (byte)(s1 >> 11);
+ s[5] = (byte)((s1 >> 19) | (s2 << 2));
+ s[6] = (byte)(s2 >> 6);
+ s[7] = (byte)((s2 >> 14) | (s3 << 7));
+ s[8] = (byte)(s3 >> 1);
+ s[9] = (byte)(s3 >> 9);
+ s[10] = (byte)((s3 >> 17) | (s4 << 4));
+ s[11] = (byte)(s4 >> 4);
+ s[12] = (byte)(s4 >> 12);
+ s[13] = (byte)((s4 >> 20) | (s5 << 1));
+ s[14] = (byte)(s5 >> 7);
+ s[15] = (byte)((s5 >> 15) | (s6 << 6));
+ s[16] = (byte)(s6 >> 2);
+ s[17] = (byte)(s6 >> 10);
+ s[18] = (byte)((s6 >> 18) | (s7 << 3));
+ s[19] = (byte)(s7 >> 5);
+ s[20] = (byte)(s7 >> 13);
+ s[21] = (byte)(s8 >> 0);
+ s[22] = (byte)(s8 >> 8);
+ s[23] = (byte)((s8 >> 16) | (s9 << 5));
+ s[24] = (byte)(s9 >> 3);
+ s[25] = (byte)(s9 >> 11);
+ s[26] = (byte)((s9 >> 19) | (s10 << 2));
+ s[27] = (byte)(s10 >> 6);
+ s[28] = (byte)((s10 >> 14) | (s11 << 7));
+ s[29] = (byte)(s11 >> 1);
+ s[30] = (byte)(s11 >> 9);
+ s[31] = (byte)(s11 >> 17);
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/sc_reduce.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/sc_reduce.cs
new file mode 100644
index 000000000..89fcdd42d
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/sc_reduce.cs
@@ -0,0 +1,264 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ internal static partial class ScalarOperations
+ {
+ /*
+ Input:
+ s[0]+256*s[1]+...+256^63*s[63] = s
+
+ Output:
+ s[0]+256*s[1]+...+256^31*s[31] = s mod l
+ where l = 2^252 + 27742317777372353535851937790883648493.
+ Overwrites s in place.
+ */
+
+ public static void sc_reduce(byte[] s)
+ {
+ long s0 = 2097151 & load_3(s, 0);
+ long s1 = 2097151 & (load_4(s, 2) >> 5);
+ long s2 = 2097151 & (load_3(s, 5) >> 2);
+ long s3 = 2097151 & (load_4(s, 7) >> 7);
+ long s4 = 2097151 & (load_4(s, 10) >> 4);
+ long s5 = 2097151 & (load_3(s, 13) >> 1);
+ long s6 = 2097151 & (load_4(s, 15) >> 6);
+ long s7 = 2097151 & (load_3(s, 18) >> 3);
+ long s8 = 2097151 & load_3(s, 21);
+ long s9 = 2097151 & (load_4(s, 23) >> 5);
+ long s10 = 2097151 & (load_3(s, 26) >> 2);
+ long s11 = 2097151 & (load_4(s, 28) >> 7);
+ long s12 = 2097151 & (load_4(s, 31) >> 4);
+ long s13 = 2097151 & (load_3(s, 34) >> 1);
+ long s14 = 2097151 & (load_4(s, 36) >> 6);
+ long s15 = 2097151 & (load_3(s, 39) >> 3);
+ long s16 = 2097151 & load_3(s, 42);
+ long s17 = 2097151 & (load_4(s, 44) >> 5);
+ long s18 = 2097151 & (load_3(s, 47) >> 2);
+ long s19 = 2097151 & (load_4(s, 49) >> 7);
+ long s20 = 2097151 & (load_4(s, 52) >> 4);
+ long s21 = 2097151 & (load_3(s, 55) >> 1);
+ long s22 = 2097151 & (load_4(s, 57) >> 6);
+ long s23 = (load_4(s, 60) >> 3);
+
+ long carry0;
+ long carry1;
+ long carry2;
+ long carry3;
+ long carry4;
+ long carry5;
+ long carry6;
+ long carry7;
+ long carry8;
+ long carry9;
+ long carry10;
+ long carry11;
+ long carry12;
+ long carry13;
+ long carry14;
+ long carry15;
+ long carry16;
+
+ s11 += s23 * 666643;
+ s12 += s23 * 470296;
+ s13 += s23 * 654183;
+ s14 -= s23 * 997805;
+ s15 += s23 * 136657;
+ s16 -= s23 * 683901;
+ s23 = 0;
+
+ s10 += s22 * 666643;
+ s11 += s22 * 470296;
+ s12 += s22 * 654183;
+ s13 -= s22 * 997805;
+ s14 += s22 * 136657;
+ s15 -= s22 * 683901;
+ s22 = 0;
+
+ s9 += s21 * 666643;
+ s10 += s21 * 470296;
+ s11 += s21 * 654183;
+ s12 -= s21 * 997805;
+ s13 += s21 * 136657;
+ s14 -= s21 * 683901;
+ s21 = 0;
+
+ s8 += s20 * 666643;
+ s9 += s20 * 470296;
+ s10 += s20 * 654183;
+ s11 -= s20 * 997805;
+ s12 += s20 * 136657;
+ s13 -= s20 * 683901;
+ s20 = 0;
+
+ s7 += s19 * 666643;
+ s8 += s19 * 470296;
+ s9 += s19 * 654183;
+ s10 -= s19 * 997805;
+ s11 += s19 * 136657;
+ s12 -= s19 * 683901;
+ s19 = 0;
+
+ s6 += s18 * 666643;
+ s7 += s18 * 470296;
+ s8 += s18 * 654183;
+ s9 -= s18 * 997805;
+ s10 += s18 * 136657;
+ s11 -= s18 * 683901;
+ s18 = 0;
+
+ carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+ carry12 = (s12 + (1 << 20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
+ carry14 = (s14 + (1 << 20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
+ carry16 = (s16 + (1 << 20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
+
+ carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+ carry13 = (s13 + (1 << 20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
+ carry15 = (s15 + (1 << 20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
+
+ s5 += s17 * 666643;
+ s6 += s17 * 470296;
+ s7 += s17 * 654183;
+ s8 -= s17 * 997805;
+ s9 += s17 * 136657;
+ s10 -= s17 * 683901;
+ s17 = 0;
+
+ s4 += s16 * 666643;
+ s5 += s16 * 470296;
+ s6 += s16 * 654183;
+ s7 -= s16 * 997805;
+ s8 += s16 * 136657;
+ s9 -= s16 * 683901;
+ s16 = 0;
+
+ s3 += s15 * 666643;
+ s4 += s15 * 470296;
+ s5 += s15 * 654183;
+ s6 -= s15 * 997805;
+ s7 += s15 * 136657;
+ s8 -= s15 * 683901;
+ s15 = 0;
+
+ s2 += s14 * 666643;
+ s3 += s14 * 470296;
+ s4 += s14 * 654183;
+ s5 -= s14 * 997805;
+ s6 += s14 * 136657;
+ s7 -= s14 * 683901;
+ s14 = 0;
+
+ s1 += s13 * 666643;
+ s2 += s13 * 470296;
+ s3 += s13 * 654183;
+ s4 -= s13 * 997805;
+ s5 += s13 * 136657;
+ s6 -= s13 * 683901;
+ s13 = 0;
+
+ s0 += s12 * 666643;
+ s1 += s12 * 470296;
+ s2 += s12 * 654183;
+ s3 -= s12 * 997805;
+ s4 += s12 * 136657;
+ s5 -= s12 * 683901;
+ s12 = 0;
+
+ carry0 = (s0 + (1 << 20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry2 = (s2 + (1 << 20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry4 = (s4 + (1 << 20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry6 = (s6 + (1 << 20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry8 = (s8 + (1 << 20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry10 = (s10 + (1 << 20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+ carry1 = (s1 + (1 << 20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry3 = (s3 + (1 << 20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry5 = (s5 + (1 << 20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry7 = (s7 + (1 << 20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry9 = (s9 + (1 << 20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry11 = (s11 + (1 << 20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+ s0 += s12 * 666643;
+ s1 += s12 * 470296;
+ s2 += s12 * 654183;
+ s3 -= s12 * 997805;
+ s4 += s12 * 136657;
+ s5 -= s12 * 683901;
+ s12 = 0;
+
+ carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+ carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+ s0 += s12 * 666643;
+ s1 += s12 * 470296;
+ s2 += s12 * 654183;
+ s3 -= s12 * 997805;
+ s4 += s12 * 136657;
+ s5 -= s12 * 683901;
+ s12 = 0;
+
+ carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+ carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+ carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+ carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+ carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+ carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+ carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+ carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+ carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+ carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+ carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+ unchecked
+ {
+ s[0] = (byte)(s0 >> 0);
+ s[1] = (byte)(s0 >> 8);
+ s[2] = (byte)((s0 >> 16) | (s1 << 5));
+ s[3] = (byte)(s1 >> 3);
+ s[4] = (byte)(s1 >> 11);
+ s[5] = (byte)((s1 >> 19) | (s2 << 2));
+ s[6] = (byte)(s2 >> 6);
+ s[7] = (byte)((s2 >> 14) | (s3 << 7));
+ s[8] = (byte)(s3 >> 1);
+ s[9] = (byte)(s3 >> 9);
+ s[10] = (byte)((s3 >> 17) | (s4 << 4));
+ s[11] = (byte)(s4 >> 4);
+ s[12] = (byte)(s4 >> 12);
+ s[13] = (byte)((s4 >> 20) | (s5 << 1));
+ s[14] = (byte)(s5 >> 7);
+ s[15] = (byte)((s5 >> 15) | (s6 << 6));
+ s[16] = (byte)(s6 >> 2);
+ s[17] = (byte)(s6 >> 10);
+ s[18] = (byte)((s6 >> 18) | (s7 << 3));
+ s[19] = (byte)(s7 >> 5);
+ s[20] = (byte)(s7 >> 13);
+ s[21] = (byte)(s8 >> 0);
+ s[22] = (byte)(s8 >> 8);
+ s[23] = (byte)((s8 >> 16) | (s9 << 5));
+ s[24] = (byte)(s9 >> 3);
+ s[25] = (byte)(s9 >> 11);
+ s[26] = (byte)((s9 >> 19) | (s10 << 2));
+ s[27] = (byte)(s10 >> 6);
+ s[28] = (byte)((s10 >> 14) | (s11 << 7));
+ s[29] = (byte)(s11 >> 1);
+ s[30] = (byte)(s11 >> 9);
+ s[31] = (byte)(s11 >> 17);
+ }
+ }
+
+ }
+}
\ No newline at end of file
diff --git a/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/scalarmult.cs b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/scalarmult.cs
new file mode 100644
index 000000000..c10507a72
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Internal/Ed25519Ref10/scalarmult.cs
@@ -0,0 +1,153 @@
+using System;
+
+namespace Framework.Cryptography.Ed25519.Internal.Ed25519Ref10
+{
+ public static class MontgomeryOperations
+ {
+ public static void scalarmult(
+ byte[] q, int qoffset,
+ byte[] n, int noffset,
+ byte[] p, int poffset)
+ {
+ FieldElement p0, q0;
+ FieldOperations.fe_frombytes2(out p0, p, poffset);
+ scalarmult(out q0, n, noffset, ref p0);
+ FieldOperations.fe_tobytes(q, qoffset, ref q0);
+ }
+
+ internal static void scalarmult(
+ out FieldElement q,
+ byte[] n, int noffset,
+ ref FieldElement p)
+ {
+ byte[] e = new byte[32];//ToDo: remove allocation
+ FieldElement x1, x2, x3;
+ FieldElement z2, z3;
+ FieldElement tmp0, tmp1;
+
+ for (int i = 0; i < 32; ++i)
+ e[i] = n[noffset + i];
+ ScalarOperations.sc_clamp(e, 0);
+ x1 = p;
+ FieldOperations.fe_1(out x2);
+ FieldOperations.fe_0(out z2);
+ x3 = x1;
+ FieldOperations.fe_1(out z3);
+
+ uint swap = 0;
+ for (int pos = 254; pos >= 0; --pos)
+ {
+ uint b = (uint)(e[pos / 8] >> (pos & 7));
+ b &= 1;
+ swap ^= b;
+ FieldOperations.fe_cswap(ref x2, ref x3, swap);
+ FieldOperations.fe_cswap(ref z2, ref z3, swap);
+ swap = b;
+
+ /* qhasm: enter ladder */
+
+ /* qhasm: D = X3-Z3 */
+ /* asm 1: fe_sub(>D=fe#5,D=tmp0,B=fe#6,B=tmp1,A=fe#1,A=x2,C=fe#2,C=z2,DA=fe#4,DA=z3,CB=fe#2,CB=z2,BB=fe#5,BB=tmp0,AA=fe#6,AA=tmp1,t0=fe#3,t0=x3,t1=fe#2,t1=z2,X4=fe#1,X4=x2,E=fe#6,E=tmp1,t2=fe#2,t2=z2,t3=fe#4,t3=z3,X5=fe#3,X5=x3,t4=fe#5,t4=tmp0,Z5=fe#4,x1,Z5=z3,x1,Z4=fe#2,Z4=z2, state)
+ {
+ state.x0 = 0x6a09e667f3bcc908;
+ state.x1 = 0xbb67ae8584caa73b;
+ state.x2 = 0x3c6ef372fe94f82b;
+ state.x3 = 0xa54ff53a5f1d36f1;
+ state.x4 = 0x510e527fade682d1;
+ state.x5 = 0x9b05688c2b3e6c1f;
+ state.x6 = 0x1f83d9abfb41bd6b;
+ state.x7 = 0x5be0cd19137e2179;
+ }
+
+ internal static void Core(out Array8 outputState, ref Array8 inputState, ref Array16 input)
+ {
+ unchecked
+ {
+ var a = inputState.x0;
+ var b = inputState.x1;
+ var c = inputState.x2;
+ var d = inputState.x3;
+ var e = inputState.x4;
+ var f = inputState.x5;
+ var g = inputState.x6;
+ var h = inputState.x7;
+
+ var w0 = input.x0;
+ var w1 = input.x1;
+ var w2 = input.x2;
+ var w3 = input.x3;
+ var w4 = input.x4;
+ var w5 = input.x5;
+ var w6 = input.x6;
+ var w7 = input.x7;
+ var w8 = input.x8;
+ var w9 = input.x9;
+ var w10 = input.x10;
+ var w11 = input.x11;
+ var w12 = input.x12;
+ var w13 = input.x13;
+ var w14 = input.x14;
+ var w15 = input.x15;
+
+ int t = 0;
+ while (true)
+ {
+ ulong t1, t2;
+
+ {//0
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w0;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//1
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w1;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//2
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w2;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//3
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w3;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//4
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w4;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//5
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w5;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//6
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w6;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//7
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w7;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//8
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w8;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//9
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w9;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//10
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w10;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//11
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w11;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//12
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w12;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//13
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w13;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//14
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w14;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ {//15
+ t1 = h +
+ ((e >> 14) ^ (e << (64 - 14)) ^ (e >> 18) ^ (e << (64 - 18)) ^ (e >> 41) ^ (e << (64 - 41))) +
+ //Sigma1(e)
+ ((e & f) ^ (~e & g)) + //Ch(e,f,g)
+ K[t] + w15;
+ t2 = ((a >> 28) ^ (a << (64 - 28)) ^ (a >> 34) ^ (a << (64 - 34)) ^ (a >> 39) ^ (a << (64 - 39))) +
+ //Sigma0(a)
+ ((a & b) ^ (a & c) ^ (b & c)); //Maj(a,b,c)
+ h = g;
+ g = f;
+ f = e;
+ e = d + t1;
+ d = c;
+ c = b;
+ b = a;
+ a = t1 + t2;
+ t++;
+ }
+ if (t == 80)
+ break;
+
+ w0 += ((w14 >> 19) ^ (w14 << (64 - 19)) ^ (w14 >> 61) ^ (w14 << (64 - 61)) ^ (w14 >> 6)) +
+ w9 +
+ ((w1 >> 1) ^ (w1 << (64 - 1)) ^ (w1 >> 8) ^ (w1 << (64 - 8)) ^ (w1 >> 7));
+ w1 += ((w15 >> 19) ^ (w15 << (64 - 19)) ^ (w15 >> 61) ^ (w15 << (64 - 61)) ^ (w15 >> 6)) +
+ w10 +
+ ((w2 >> 1) ^ (w2 << (64 - 1)) ^ (w2 >> 8) ^ (w2 << (64 - 8)) ^ (w2 >> 7));
+ w2 += ((w0 >> 19) ^ (w0 << (64 - 19)) ^ (w0 >> 61) ^ (w0 << (64 - 61)) ^ (w0 >> 6)) +
+ w11 +
+ ((w3 >> 1) ^ (w3 << (64 - 1)) ^ (w3 >> 8) ^ (w3 << (64 - 8)) ^ (w3 >> 7));
+ w3 += ((w1 >> 19) ^ (w1 << (64 - 19)) ^ (w1 >> 61) ^ (w1 << (64 - 61)) ^ (w1 >> 6)) +
+ w12 +
+ ((w4 >> 1) ^ (w4 << (64 - 1)) ^ (w4 >> 8) ^ (w4 << (64 - 8)) ^ (w4 >> 7));
+ w4 += ((w2 >> 19) ^ (w2 << (64 - 19)) ^ (w2 >> 61) ^ (w2 << (64 - 61)) ^ (w2 >> 6)) +
+ w13 +
+ ((w5 >> 1) ^ (w5 << (64 - 1)) ^ (w5 >> 8) ^ (w5 << (64 - 8)) ^ (w5 >> 7));
+ w5 += ((w3 >> 19) ^ (w3 << (64 - 19)) ^ (w3 >> 61) ^ (w3 << (64 - 61)) ^ (w3 >> 6)) +
+ w14 +
+ ((w6 >> 1) ^ (w6 << (64 - 1)) ^ (w6 >> 8) ^ (w6 << (64 - 8)) ^ (w6 >> 7));
+ w6 += ((w4 >> 19) ^ (w4 << (64 - 19)) ^ (w4 >> 61) ^ (w4 << (64 - 61)) ^ (w4 >> 6)) +
+ w15 +
+ ((w7 >> 1) ^ (w7 << (64 - 1)) ^ (w7 >> 8) ^ (w7 << (64 - 8)) ^ (w7 >> 7));
+ w7 += ((w5 >> 19) ^ (w5 << (64 - 19)) ^ (w5 >> 61) ^ (w5 << (64 - 61)) ^ (w5 >> 6)) +
+ w0 +
+ ((w8 >> 1) ^ (w8 << (64 - 1)) ^ (w8 >> 8) ^ (w8 << (64 - 8)) ^ (w8 >> 7));
+ w8 += ((w6 >> 19) ^ (w6 << (64 - 19)) ^ (w6 >> 61) ^ (w6 << (64 - 61)) ^ (w6 >> 6)) +
+ w1 +
+ ((w9 >> 1) ^ (w9 << (64 - 1)) ^ (w9 >> 8) ^ (w9 << (64 - 8)) ^ (w9 >> 7));
+ w9 += ((w7 >> 19) ^ (w7 << (64 - 19)) ^ (w7 >> 61) ^ (w7 << (64 - 61)) ^ (w7 >> 6)) +
+ w2 +
+ ((w10 >> 1) ^ (w10 << (64 - 1)) ^ (w10 >> 8) ^ (w10 << (64 - 8)) ^ (w10 >> 7));
+ w10 += ((w8 >> 19) ^ (w8 << (64 - 19)) ^ (w8 >> 61) ^ (w8 << (64 - 61)) ^ (w8 >> 6)) +
+ w3 +
+ ((w11 >> 1) ^ (w11 << (64 - 1)) ^ (w11 >> 8) ^ (w11 << (64 - 8)) ^ (w11 >> 7));
+ w11 += ((w9 >> 19) ^ (w9 << (64 - 19)) ^ (w9 >> 61) ^ (w9 << (64 - 61)) ^ (w9 >> 6)) +
+ w4 +
+ ((w12 >> 1) ^ (w12 << (64 - 1)) ^ (w12 >> 8) ^ (w12 << (64 - 8)) ^ (w12 >> 7));
+ w12 += ((w10 >> 19) ^ (w10 << (64 - 19)) ^ (w10 >> 61) ^ (w10 << (64 - 61)) ^ (w10 >> 6)) +
+ w5 +
+ ((w13 >> 1) ^ (w13 << (64 - 1)) ^ (w13 >> 8) ^ (w13 << (64 - 8)) ^ (w13 >> 7));
+ w13 += ((w11 >> 19) ^ (w11 << (64 - 19)) ^ (w11 >> 61) ^ (w11 << (64 - 61)) ^ (w11 >> 6)) +
+ w6 +
+ ((w14 >> 1) ^ (w14 << (64 - 1)) ^ (w14 >> 8) ^ (w14 << (64 - 8)) ^ (w14 >> 7));
+ w14 += ((w12 >> 19) ^ (w12 << (64 - 19)) ^ (w12 >> 61) ^ (w12 << (64 - 61)) ^ (w12 >> 6)) +
+ w7 +
+ ((w15 >> 1) ^ (w15 << (64 - 1)) ^ (w15 >> 8) ^ (w15 << (64 - 8)) ^ (w15 >> 7));
+ w15 += ((w13 >> 19) ^ (w13 << (64 - 19)) ^ (w13 >> 61) ^ (w13 << (64 - 61)) ^ (w13 >> 6)) +
+ w8 +
+ ((w0 >> 1) ^ (w0 << (64 - 1)) ^ (w0 >> 8) ^ (w0 << (64 - 8)) ^ (w0 >> 7));
+ }
+
+ outputState.x0 = inputState.x0 + a;
+ outputState.x1 = inputState.x1 + b;
+ outputState.x2 = inputState.x2 + c;
+ outputState.x3 = inputState.x3 + d;
+ outputState.x4 = inputState.x4 + e;
+ outputState.x5 = inputState.x5 + f;
+ outputState.x6 = inputState.x6 + g;
+ outputState.x7 = inputState.x7 + h;
+ }
+ }
+ }
+}
diff --git a/Source/Framework/Cryptography/Ed25519/Sha512.cs b/Source/Framework/Cryptography/Ed25519/Sha512.cs
new file mode 100644
index 000000000..3c880c62c
--- /dev/null
+++ b/Source/Framework/Cryptography/Ed25519/Sha512.cs
@@ -0,0 +1,153 @@
+using System;
+using System.Collections.Generic;
+using Framework.Cryptography.Ed25519.Internal;
+using System.Diagnostics.Contracts;
+
+namespace Framework.Cryptography.Ed25519
+{
+ public class Sha512
+ {
+ private Array8