diff --git a/ChocolArm64/Instruction/ACryptoHelper.cs b/ChocolArm64/Instruction/CryptoHelper.cs similarity index 75% rename from ChocolArm64/Instruction/ACryptoHelper.cs rename to ChocolArm64/Instruction/CryptoHelper.cs index 2dc65972b2..b38d79a8c7 100644 --- a/ChocolArm64/Instruction/ACryptoHelper.cs +++ b/ChocolArm64/Instruction/CryptoHelper.cs @@ -4,12 +4,12 @@ using System; using System.Runtime.Intrinsics; using System.Runtime.Intrinsics.X86; -namespace ChocolArm64.Instruction +namespace ChocolArm64.Instructions { - static class ACryptoHelper + static class CryptoHelper { #region "LookUp Tables" - private static byte[] SBox = + private static byte[] _sBox = { 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, @@ -29,7 +29,7 @@ namespace ChocolArm64.Instruction 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 }; - private static byte[] InvSBox = + private static byte[] _invSBox = { 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, @@ -49,7 +49,7 @@ namespace ChocolArm64.Instruction 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d }; - private static byte[] GFMul_02 = + private static byte[] _gfMul02 = { 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e, @@ -69,7 +69,7 @@ namespace ChocolArm64.Instruction 0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5 }; - private static byte[] GFMul_03 = + private static byte[] _gfMul03 = { 0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d, 0x14, 0x17, 0x12, 0x11, 0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39, 0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21, @@ -89,7 +89,7 @@ namespace ChocolArm64.Instruction 0x0b, 0x08, 0x0d, 0x0e, 0x07, 0x04, 0x01, 0x02, 0x13, 0x10, 0x15, 0x16, 0x1f, 0x1c, 0x19, 0x1a }; - private static byte[] GFMul_09 = + private static byte[] _gfMul09 = { 0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53, 0x6c, 0x65, 0x7e, 0x77, 0x90, 0x99, 0x82, 0x8b, 0xb4, 0xbd, 0xa6, 0xaf, 0xd8, 0xd1, 0xca, 0xc3, 0xfc, 0xf5, 0xee, 0xe7, @@ -109,7 +109,7 @@ namespace ChocolArm64.Instruction 0x31, 0x38, 0x23, 0x2a, 0x15, 0x1c, 0x07, 0x0e, 0x79, 0x70, 0x6b, 0x62, 0x5d, 0x54, 0x4f, 0x46 }; - private static byte[] GFMul_0B = + private static byte[] _gfMul0B = { 0x00, 0x0b, 0x16, 0x1d, 0x2c, 0x27, 0x3a, 0x31, 0x58, 0x53, 0x4e, 0x45, 0x74, 0x7f, 0x62, 0x69, 0xb0, 0xbb, 0xa6, 0xad, 0x9c, 0x97, 0x8a, 0x81, 0xe8, 0xe3, 0xfe, 0xf5, 0xc4, 0xcf, 0xd2, 0xd9, @@ -129,7 +129,7 @@ namespace ChocolArm64.Instruction 0xca, 0xc1, 0xdc, 0xd7, 0xe6, 0xed, 0xf0, 0xfb, 0x92, 0x99, 0x84, 0x8f, 0xbe, 0xb5, 0xa8, 0xa3 }; - private static byte[] GFMul_0D = + private static byte[] _gfMul0D = { 0x00, 0x0d, 0x1a, 0x17, 0x34, 0x39, 0x2e, 0x23, 0x68, 0x65, 0x72, 0x7f, 0x5c, 0x51, 0x46, 0x4b, 0xd0, 0xdd, 0xca, 0xc7, 0xe4, 0xe9, 0xfe, 0xf3, 0xb8, 0xb5, 0xa2, 0xaf, 0x8c, 0x81, 0x96, 0x9b, @@ -149,7 +149,7 @@ namespace ChocolArm64.Instruction 0xdc, 0xd1, 0xc6, 0xcb, 0xe8, 0xe5, 0xf2, 0xff, 0xb4, 0xb9, 0xae, 0xa3, 0x80, 0x8d, 0x9a, 0x97 }; - private static byte[] GFMul_0E = + private static byte[] _gfMul0E = { 0x00, 0x0e, 0x1c, 0x12, 0x38, 0x36, 0x24, 0x2a, 0x70, 0x7e, 0x6c, 0x62, 0x48, 0x46, 0x54, 0x5a, 0xe0, 0xee, 0xfc, 0xf2, 0xd8, 0xd6, 0xc4, 0xca, 0x90, 0x9e, 0x8c, 0x82, 0xa8, 0xa6, 0xb4, 0xba, @@ -169,149 +169,149 @@ namespace ChocolArm64.Instruction 0xd7, 0xd9, 0xcb, 0xc5, 0xef, 0xe1, 0xf3, 0xfd, 0xa7, 0xa9, 0xbb, 0xb5, 0x9f, 0x91, 0x83, 0x8d }; - private static byte[] SRPerm = { 0, 13, 10, 7, 4, 1, 14, 11, 8, 5, 2, 15, 12, 9, 6, 3 }; + private static byte[] _srPerm = { 0, 13, 10, 7, 4, 1, 14, 11, 8, 5, 2, 15, 12, 9, 6, 3 }; - private static byte[] ISRPerm = { 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, 1, 6, 11 }; + private static byte[] _isrPerm = { 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12, 1, 6, 11 }; #endregion - public static Vector128 AESInvMixColumns(Vector128 op) + public static Vector128 AesInvMixColumns(Vector128 op) { - byte[] InState = new byte[16]; - byte[] OutState = new byte[16]; + byte[] inState = new byte[16]; + byte[] outState = new byte[16]; - FromVectorToByteArray(InState, ref op); + FromVectorToByteArray(inState, ref op); - for (int Columns = 0; Columns <= 3; Columns++) + for (int columns = 0; columns <= 3; columns++) { - int Idx = Columns << 2; + int idx = columns << 2; - byte Row0 = InState[Idx + 0]; // A, E, I, M: [Row0, Col0-Col3] - byte Row1 = InState[Idx + 1]; // B, F, J, N: [Row1, Col0-Col3] - byte Row2 = InState[Idx + 2]; // C, G, K, O: [Row2, Col0-Col3] - byte Row3 = InState[Idx + 3]; // D, H, L, P: [Row3, Col0-Col3] + byte row0 = inState[idx + 0]; // A, E, I, M: [row0, col0-col3] + byte row1 = inState[idx + 1]; // B, F, J, N: [row1, col0-col3] + byte row2 = inState[idx + 2]; // C, G, K, O: [row2, col0-col3] + byte row3 = inState[idx + 3]; // D, H, L, P: [row3, col0-col3] - OutState[Idx + 0] = (byte)((uint)GFMul_0E[Row0] ^ GFMul_0B[Row1] ^ GFMul_0D[Row2] ^ GFMul_09[Row3]); - OutState[Idx + 1] = (byte)((uint)GFMul_09[Row0] ^ GFMul_0E[Row1] ^ GFMul_0B[Row2] ^ GFMul_0D[Row3]); - OutState[Idx + 2] = (byte)((uint)GFMul_0D[Row0] ^ GFMul_09[Row1] ^ GFMul_0E[Row2] ^ GFMul_0B[Row3]); - OutState[Idx + 3] = (byte)((uint)GFMul_0B[Row0] ^ GFMul_0D[Row1] ^ GFMul_09[Row2] ^ GFMul_0E[Row3]); + outState[idx + 0] = (byte)((uint)_gfMul0E[row0] ^ _gfMul0B[row1] ^ _gfMul0D[row2] ^ _gfMul09[row3]); + outState[idx + 1] = (byte)((uint)_gfMul09[row0] ^ _gfMul0E[row1] ^ _gfMul0B[row2] ^ _gfMul0D[row3]); + outState[idx + 2] = (byte)((uint)_gfMul0D[row0] ^ _gfMul09[row1] ^ _gfMul0E[row2] ^ _gfMul0B[row3]); + outState[idx + 3] = (byte)((uint)_gfMul0B[row0] ^ _gfMul0D[row1] ^ _gfMul09[row2] ^ _gfMul0E[row3]); } - FromByteArrayToVector(OutState, ref op); + FromByteArrayToVector(outState, ref op); return op; } - public static Vector128 AESInvShiftRows(Vector128 op) + public static Vector128 AesInvShiftRows(Vector128 op) { - byte[] InState = new byte[16]; - byte[] OutState = new byte[16]; + byte[] inState = new byte[16]; + byte[] outState = new byte[16]; - FromVectorToByteArray(InState, ref op); + FromVectorToByteArray(inState, ref op); - for (int Idx = 0; Idx <= 15; Idx++) + for (int idx = 0; idx <= 15; idx++) { - OutState[ISRPerm[Idx]] = InState[Idx]; + outState[_isrPerm[idx]] = inState[idx]; } - FromByteArrayToVector(OutState, ref op); + FromByteArrayToVector(outState, ref op); return op; } - public static Vector128 AESInvSubBytes(Vector128 op) + public static Vector128 AesInvSubBytes(Vector128 op) { - byte[] InState = new byte[16]; - byte[] OutState = new byte[16]; + byte[] inState = new byte[16]; + byte[] outState = new byte[16]; - FromVectorToByteArray(InState, ref op); + FromVectorToByteArray(inState, ref op); - for (int Idx = 0; Idx <= 15; Idx++) + for (int idx = 0; idx <= 15; idx++) { - OutState[Idx] = InvSBox[InState[Idx]]; + outState[idx] = _invSBox[inState[idx]]; } - FromByteArrayToVector(OutState, ref op); + FromByteArrayToVector(outState, ref op); return op; } - public static Vector128 AESMixColumns(Vector128 op) + public static Vector128 AesMixColumns(Vector128 op) { - byte[] InState = new byte[16]; - byte[] OutState = new byte[16]; + byte[] inState = new byte[16]; + byte[] outState = new byte[16]; - FromVectorToByteArray(InState, ref op); + FromVectorToByteArray(inState, ref op); - for (int Columns = 0; Columns <= 3; Columns++) + for (int columns = 0; columns <= 3; columns++) { - int Idx = Columns << 2; + int idx = columns << 2; - byte Row0 = InState[Idx + 0]; // A, E, I, M: [Row0, Col0-Col3] - byte Row1 = InState[Idx + 1]; // B, F, J, N: [Row1, Col0-Col3] - byte Row2 = InState[Idx + 2]; // C, G, K, O: [Row2, Col0-Col3] - byte Row3 = InState[Idx + 3]; // D, H, L, P: [Row3, Col0-Col3] + byte row0 = inState[idx + 0]; // A, E, I, M: [row0, col0-col3] + byte row1 = inState[idx + 1]; // B, F, J, N: [row1, col0-col3] + byte row2 = inState[idx + 2]; // C, G, K, O: [row2, col0-col3] + byte row3 = inState[idx + 3]; // D, H, L, P: [row3, col0-col3] - OutState[Idx + 0] = (byte)((uint)GFMul_02[Row0] ^ GFMul_03[Row1] ^ Row2 ^ Row3); - OutState[Idx + 1] = (byte)((uint)Row0 ^ GFMul_02[Row1] ^ GFMul_03[Row2] ^ Row3); - OutState[Idx + 2] = (byte)((uint)Row0 ^ Row1 ^ GFMul_02[Row2] ^ GFMul_03[Row3]); - OutState[Idx + 3] = (byte)((uint)GFMul_03[Row0] ^ Row1 ^ Row2 ^ GFMul_02[Row3]); + outState[idx + 0] = (byte)((uint)_gfMul02[row0] ^ _gfMul03[row1] ^ row2 ^ row3); + outState[idx + 1] = (byte)((uint)row0 ^ _gfMul02[row1] ^ _gfMul03[row2] ^ row3); + outState[idx + 2] = (byte)((uint)row0 ^ row1 ^ _gfMul02[row2] ^ _gfMul03[row3]); + outState[idx + 3] = (byte)((uint)_gfMul03[row0] ^ row1 ^ row2 ^ _gfMul02[row3]); } - FromByteArrayToVector(OutState, ref op); + FromByteArrayToVector(outState, ref op); return op; } - public static Vector128 AESShiftRows(Vector128 op) + public static Vector128 AesShiftRows(Vector128 op) { - byte[] InState = new byte[16]; - byte[] OutState = new byte[16]; + byte[] inState = new byte[16]; + byte[] outState = new byte[16]; - FromVectorToByteArray(InState, ref op); + FromVectorToByteArray(inState, ref op); - for (int Idx = 0; Idx <= 15; Idx++) + for (int idx = 0; idx <= 15; idx++) { - OutState[SRPerm[Idx]] = InState[Idx]; + outState[_srPerm[idx]] = inState[idx]; } - FromByteArrayToVector(OutState, ref op); + FromByteArrayToVector(outState, ref op); return op; } - public static Vector128 AESSubBytes(Vector128 op) + public static Vector128 AesSubBytes(Vector128 op) { - byte[] InState = new byte[16]; - byte[] OutState = new byte[16]; + byte[] inState = new byte[16]; + byte[] outState = new byte[16]; - FromVectorToByteArray(InState, ref op); + FromVectorToByteArray(inState, ref op); - for (int Idx = 0; Idx <= 15; Idx++) + for (int idx = 0; idx <= 15; idx++) { - OutState[Idx] = SBox[InState[Idx]]; + outState[idx] = _sBox[inState[idx]]; } - FromByteArrayToVector(OutState, ref op); + FromByteArrayToVector(outState, ref op); return op; } - private static void FromVectorToByteArray(byte[] State, ref Vector128 op) + private static void FromVectorToByteArray(byte[] state, ref Vector128 op) { - ulong ULongLow = AVectorHelper.VectorExtractIntZx((op), (byte)0, 3); - ulong ULongHigh = AVectorHelper.VectorExtractIntZx((op), (byte)1, 3); + ulong uLongLow = VectorHelper.VectorExtractIntZx((op), (byte)0, 3); + ulong uLongHigh = VectorHelper.VectorExtractIntZx((op), (byte)1, 3); - for (int Idx = 0; Idx <= 7; Idx++) + for (int idx = 0; idx <= 7; idx++) { - State[Idx + 0] = (byte)(ULongLow & 0xFFUL); - State[Idx + 8] = (byte)(ULongHigh & 0xFFUL); + state[idx + 0] = (byte)(uLongLow & 0xFFUL); + state[idx + 8] = (byte)(uLongHigh & 0xFFUL); - ULongLow >>= 8; - ULongHigh >>= 8; + uLongLow >>= 8; + uLongHigh >>= 8; } } - private static void FromByteArrayToVector(byte[] State, ref Vector128 op) + private static void FromByteArrayToVector(byte[] state, ref Vector128 op) { if (!Sse2.IsSupported) { @@ -319,10 +319,10 @@ namespace ChocolArm64.Instruction } op = Sse.StaticCast(Sse2.SetVector128( - State[15], State[14], State[13], State[12], - State[11], State[10], State[9], State[8], - State[7], State[6], State[5], State[4], - State[3], State[2], State[1], State[0])); + state[15], state[14], state[13], state[12], + state[11], state[10], state[9], state[8], + state[7], state[6], state[5], state[4], + state[3], state[2], state[1], state[0])); } } }