public static byte[] MD5(byte[] data)
{
//MD5 formats its data in the same way SHA1 and SHA2 do.
SHADataContext ctx = new SHADataContext(data);
//MD5 initial hash state
uint *state = stackalloc uint[4]
{
0x67452301,
0xefcdab89,
0x98badcfe,
0x10325476
};
//MD5 schedule memory
uint *schedule = stackalloc uint[16];
do
{
//Prepare first/next block
ctx.PrepareBlock((byte *)schedule, sizeof(uint) * 16);
if (!BitConverter.IsLittleEndian) //If big endian, reverse data endianess
{
ReverseEndianess(schedule, 16);
}
//Process data into hash state
ProcessBlockMD5(state, schedule);
}while (!ctx.Complete);
//Hash byte order correction
if (!BitConverter.IsLittleEndian)
{
//fast path removes a copy on big endian platforms
byte[] hash = new byte[sizeof(uint) * 4];
fixed(byte *pHash = hash)
{
StateCopyReversed_MD5(state, pHash);
}
return(hash);
}
else
{
return(new Span <byte>(state, sizeof(uint) * 4).ToArray());
}
}
public static byte[] SHA512(byte[] data)
{
SHADataContext ctx = new SHADataContext(data, SHADataContext.AlgorithmWordSize._64);
ulong *state = stackalloc ulong[8]
{
0x6a09e667f3bcc908,
0xbb67ae8584caa73b,
0x3c6ef372fe94f82b,
0xa54ff53a5f1d36f1,
0x510e527fade682d1,
0x9b05688c2b3e6c1f,
0x1f83d9abfb41bd6b,
0x5be0cd19137e2179
};
ulong *schedule = stackalloc ulong[80];
do
{
ctx.PrepareBlock((byte *)schedule, sizeof(ulong) * 16);
InitScheduleSHA512(schedule);
ProcessBlockSHA512(state, schedule);
}while (!ctx.Complete);
if (BitConverter.IsLittleEndian)
{
var hash = new byte[8 * sizeof(ulong)];
if (Avx2.IsSupported)
{
Vector256 <ulong> vec = Avx2.LoadVector256(state), vec2 = Avx2.LoadVector256(state + 4);
Unsafe.As <byte, Vector256 <byte> >(ref hash[0]) = Avx2.Shuffle(vec.AsByte(), ReverseEndianess_64_256);
Unsafe.As <byte, Vector256 <byte> >(ref hash[sizeof(ulong) * 4]) = Avx2.Shuffle(vec2.AsByte(), ReverseEndianess_64_256);
}
else
{
fixed(byte *phash = hash)
ReverseEndianess(state, (ulong *)phash, 8);
}
return(hash);
}
else
{
return(new Span <byte>(state, sizeof(ulong) * 8).ToArray());
}
}
public static byte[] SHA224(byte[] data)
{
SHADataContext ctx = new SHADataContext(data);
uint *state = stackalloc uint[8]
{
0xc1059ed8,
0x367cd507,
0x3070dd17,
0xf70e5939,
0xffc00b31,
0x68581511,
0x64f98fa7,
0xbefa4fa4
};
uint *schedule = stackalloc uint[64];
do
{
ctx.PrepareBlock((byte *)schedule, sizeof(uint) * 16);
InitScheduleSHA256(schedule);
ProcessBlockSHA256(state, schedule);
}while (!ctx.Complete);
if (BitConverter.IsLittleEndian)
{
byte[] hash = new byte[sizeof(uint) * 7];
fixed(byte *phash = hash)
{
ReverseEndianess(state, (uint *)phash, 7);
}
return(hash);
}
else
{
return(new Span <byte>(state, sizeof(uint) * 7).ToArray());
}
}
public static byte[] SHA384(byte[] data)
{
SHADataContext ctx = new SHADataContext(data, SHADataContext.AlgorithmWordSize._64);
ulong *state = stackalloc ulong[8]
{
0xcbbb9d5dc1059ed8,
0x629a292a367cd507,
0x9159015a3070dd17,
0x152fecd8f70e5939,
0x67332667ffc00b31,
0x8eb44a8768581511,
0xdb0c2e0d64f98fa7,
0x47b5481dbefa4fa4
};
ulong *schedule = stackalloc ulong[80];
do
{
ctx.PrepareBlock((byte *)schedule, sizeof(ulong) * 16);
InitScheduleSHA512(schedule);
ProcessBlockSHA512(state, schedule);
}while (!ctx.Complete);
if (BitConverter.IsLittleEndian)
{
byte[] hash = new byte[sizeof(ulong) * 6];
fixed(byte *pHash = hash)
{
ReverseEndianess(state, (ulong *)pHash, 6);
}
return(hash);
}
return(new Span <byte>(state, sizeof(ulong) * 6).ToArray());
}
public static byte[] SHA1(byte[] data)
{
SHADataContext ctx = new SHADataContext(data);
uint *state = stackalloc uint[5]
{
0x67452301,
0xEFCDAB89,
0x98BADCFE,
0x10325476,
0xC3D2E1F0
};
uint *schedule = stackalloc uint[80];
do
{
ctx.PrepareBlock((byte *)schedule, sizeof(uint) * 16);
InitScheduleSHA1(schedule);
ProcessBlockSHA1(state, schedule);
}while (!ctx.Complete);
//Byte order correction
if (BitConverter.IsLittleEndian)
{
byte[] hash = new byte[5 * sizeof(uint)];
fixed(byte *phash = hash)
{
ReverseEndianess(state, (uint *)phash, 5);
}
return(hash);
}
else
{
return(new Span <byte>(state, 5 * sizeof(uint)).ToArray());
}
}
public static byte[] SHA256(byte[] data)
{
SHADataContext ctx = new SHADataContext(data);
uint *state = stackalloc uint[8]
{
0x6a09e667,
0xbb67ae85,
0x3c6ef372,
0xa54ff53a,
0x510e527f,
0x9b05688c,
0x1f83d9ab,
0x5be0cd19
};
uint *schedule = stackalloc uint[64];
do
{
ctx.PrepareBlock((byte *)schedule, sizeof(uint) * 16);
InitScheduleSHA256(schedule);
ProcessBlockSHA256(state, schedule);
}while (!ctx.Complete);
if (BitConverter.IsLittleEndian)
{
byte[] hash = new byte[sizeof(uint) * 8];
fixed(byte *phash = hash)
ReverseEndianess(state, (uint *)phash, 8);
return(hash);
}
return(new Span <byte>(state, sizeof(uint) * 8).ToArray());
}
public static unsafe byte[][] MD5Parallel(byte[] data1, byte[] data2, byte[] data3, byte[] data4)
{
if (!Sse2.IsSupported)
{
throw new NotSupportedException(SSE2_NotAvailable);
}
if (!BitConverter.IsLittleEndian)
{
throw new NotSupportedException(BigEndian_NotSupported);
}
const int HashSize = sizeof(uint) * 4;
SHADataContext[] ctxArr = new SHADataContext[4]
{
new SHADataContext(data1),
new SHADataContext(data2),
new SHADataContext(data3),
new SHADataContext(data4)
};
byte[][] hashes = AllocateHashs(4, HashSize);
Vector128 <uint> *state = stackalloc Vector128 <uint>[4]
{
Vector128.Create(0x67452301u),
Vector128.Create(0xefcdab89u),
Vector128.Create(0x98badcfeu),
Vector128.Create(0x10325476u)
};
bool *flags = stackalloc bool[Vector128 <uint> .Count];
Unsafe.InitBlock(flags, 0, 4); //Assuming 4 bytes, aligned
uint *blocksPtr = stackalloc uint[16 * Vector128 <uint> .Count];
Vector128 <uint> *schedule = stackalloc Vector128 <uint> [16];
int concurrentHashes = 4;
do
{
for (int i = 0; i < Vector128 <uint> .Count; ++i)
{
ref SHADataContext ctx = ref ctxArr[i];
if (!ctx.Complete)
{
ctx.PrepareBlock((byte *)(blocksPtr + i * 16), sizeof(uint) * 16);
}
}
TransformParallelSchedule(schedule, blocksPtr);
ProcessBlocksParallelMD5(state, schedule);
for (int i = 0; i < Vector128 <uint> .Count; ++i)
{
ref SHADataContext ctx = ref ctxArr[i];
if (flags[i] != ctx.Complete)
{
flags[i] = ctx.Complete;
fixed(byte *pHash = hashes[i])
{
ExtractHashState_MD5(state, (uint *)pHash, i);
}
concurrentHashes -= 1;
}
}
}while (concurrentHashes > 2);
public static byte[][] SHA384Parallel(byte[] data1, byte[] data2)
{
if (!BitConverter.IsLittleEndian)
{
throw new NotSupportedException(BigEndian_NotSupported);
}
if (!Sse2.IsSupported)
{
throw new NotSupportedException(SSE2_NotAvailable);
}
Vector128 <ulong> *state = stackalloc Vector128 <ulong>[8]
{
Vector128.Create(0xcbbb9d5dc1059ed8u),
Vector128.Create(0x629a292a367cd507u),
Vector128.Create(0x9159015a3070dd17u),
Vector128.Create(0x152fecd8f70e5939u),
Vector128.Create(0x67332667ffc00b31u),
Vector128.Create(0x8eb44a8768581511u),
Vector128.Create(0xdb0c2e0d64f98fa7u),
Vector128.Create(0x47b5481dbefa4fa4u)
};
ulong *blocks = stackalloc ulong[16 * 2];
Vector128 <ulong> *schedule = stackalloc Vector128 <ulong> [80];
bool *flags = stackalloc bool[Vector128 <ulong> .Count];
Unsafe.InitBlock(flags, 0, 2);
var contexts = new SHADataContext[2]
{
new SHADataContext(data1, SHADataContext.AlgorithmWordSize._64),
new SHADataContext(data2, SHADataContext.AlgorithmWordSize._64)
};
byte[][] hashes = AllocateHashs(2, sizeof(ulong) * 6);
int concurrentHashes = 2, i;
do
{
for (i = 0; i < 2; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (!ctx.Complete)
{
ctx.PrepareBlock((byte *)(blocks + i * 16), sizeof(ulong) * 16);
}
}
InitScheduleSHA512Parallel(schedule, blocks);
ProcessBlocksParallelSHA512(state, schedule);
for (i = 0; i < 2; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (flags[i] != ctx.Complete)
{
flags[i] = ctx.Complete;
fixed(byte *hash = hashes[i])
{
ExtractHashState_SHA384(state, (ulong *)hash, i);
}
concurrentHashes -= 1;
}
}
}while (concurrentHashes > 1);
public static byte[][] SHA224Parallel(byte[] data1, byte[] data2, byte[] data3, byte[] data4)
{
if (!Sse2.IsSupported)
{
throw new NotSupportedException(SSE2_NotAvailable);
}
if (!BitConverter.IsLittleEndian)
{
throw new NotSupportedException(BigEndian_NotSupported);
}
Vector128 <uint> *state = stackalloc Vector128 <uint>[8]
{
Vector128.Create(0xc1059ed8u),
Vector128.Create(0x367cd507u),
Vector128.Create(0x3070dd17u),
Vector128.Create(0xf70e5939u),
Vector128.Create(0xffc00b31u),
Vector128.Create(0x68581511u),
Vector128.Create(0x64f98fa7u),
Vector128.Create(0xbefa4fa4u)
};
bool *flags = stackalloc bool[4];
Unsafe.InitBlock(flags, 0, 4);
SHADataContext[] contexts = new SHADataContext[4]
{
new SHADataContext(data1),
new SHADataContext(data2),
new SHADataContext(data3),
new SHADataContext(data4)
};
uint *blocks = stackalloc uint[16 * 4];
Vector128 <uint> *schedule = stackalloc Vector128 <uint> [64];
byte[][] hashes = AllocateHashs(4, sizeof(uint) * 7);
int concurrentHashes = 4, i;
do
{
for (i = 0; i < 4; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (!ctx.Complete)
{
ctx.PrepareBlock((byte *)(blocks + i * 16), sizeof(uint) * 16);
}
}
InitScheduleSHA256Parallel(schedule, blocks);
ProcessBlocksParallelSHA256(state, schedule);
for (i = 0; i < 4; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (flags[i] != ctx.Complete)
{
flags[i] = ctx.Complete;
fixed(byte *pHash = hashes[i])
ExtractHashState_SHA224(state, (uint *)pHash, i);
concurrentHashes -= 1;
}
}
}while (concurrentHashes > 2);
public static unsafe byte[][] SHA1Parallel(byte[] data1, byte[] data2, byte[] data3, byte[] data4)
{
if (!Sse2.IsSupported)
{
throw new NotSupportedException(SSE2_NotAvailable);
}
if (!BitConverter.IsLittleEndian)
{
throw new NotSupportedException(BigEndian_NotSupported);
}
Vector128 <uint> *state = stackalloc Vector128 <uint>[5]
{
Vector128.Create(0x67452301u),
Vector128.Create(0xEFCDAB89u),
Vector128.Create(0x98BADCFEu),
Vector128.Create(0x10325476u),
Vector128.Create(0xC3D2E1F0u)
};
bool *flags = stackalloc bool[4];
Unsafe.InitBlock(flags, 0, 4);
SHADataContext[] contexts = new SHADataContext[4]
{
new SHADataContext(data1),
new SHADataContext(data2),
new SHADataContext(data3),
new SHADataContext(data4)
};
uint *blocks = stackalloc uint[16 * 4];
Vector128 <uint> *schedule = stackalloc Vector128 <uint> [80];
byte[][] hashes = AllocateHashs(4, sizeof(uint) * 5);
int concurrentHashes = 4, i;
do
{
for (i = 0; i < 4; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (!ctx.Complete)
{
ctx.PrepareBlock((byte *)(blocks + i * 16), sizeof(uint) * 16);
}
}
InitScheduleSHA1Parallel(schedule, blocks);
ProcessBlocksParallelSHA1(state, schedule);
for (i = 0; i < 4; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (flags[i] != ctx.Complete)
{
flags[i] = ctx.Complete;
fixed(byte *pHash = hashes[i])
{
ExtractHashState_SHA1(state, (uint *)pHash, i);
}
concurrentHashes -= 1;
}
}
}while (concurrentHashes > 2);
public static byte[][] SHA512Parallel(byte[] data1, byte[] data2)
{
if (!Sse2.IsSupported)
{
throw new NotSupportedException(SSE2_NotAvailable);
}
if (!BitConverter.IsLittleEndian)
{
throw new NotSupportedException(BigEndian_NotSupported);
}
Vector128 <ulong> *state = stackalloc Vector128 <ulong>[8]
{
Vector128.Create(0x6a09e667f3bcc908u),
Vector128.Create(0xbb67ae8584caa73bu),
Vector128.Create(0x3c6ef372fe94f82bu),
Vector128.Create(0xa54ff53a5f1d36f1u),
Vector128.Create(0x510e527fade682d1u),
Vector128.Create(0x9b05688c2b3e6c1fu),
Vector128.Create(0x1f83d9abfb41bd6bu),
Vector128.Create(0x5be0cd19137e2179u)
};
ulong *blocks = stackalloc ulong[16 * 2];
Vector128 <ulong> *schedule = stackalloc Vector128 <ulong> [80];
bool *flags = stackalloc bool[Vector128 <ulong> .Count];
Unsafe.InitBlock(flags, 0, 2);
SHADataContext[] contexts = new SHADataContext[2]
{
new SHADataContext(data1, SHADataContext.AlgorithmWordSize._64),
new SHADataContext(data2, SHADataContext.AlgorithmWordSize._64)
};
byte[][] hashes = AllocateHashs(2, sizeof(ulong) * 8);
int concurrentHashes = 2, i;
do
{
for (i = 0; i < 2; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (!ctx.Complete)
{
ctx.PrepareBlock((byte *)(blocks + i * 16), sizeof(ulong) * 16);
}
}
InitScheduleSHA512Parallel(schedule, blocks);
ProcessBlocksParallelSHA512(state, schedule);
for (i = 0; i < 2; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (flags[i] != ctx.Complete)
{
flags[i] = ctx.Complete;
fixed(byte *hash = hashes[i])
{
ExtractHashState_SHA512(state, (ulong *)hash, i);
}
concurrentHashes -= 1;
}
}
}while (concurrentHashes > 1);
public static byte[][] SHA256Parallel(byte[] data1, byte[] data2, byte[] data3, byte[] data4)
{
if (!Sse2.IsSupported)
{
throw new NotSupportedException(SSE2_NotAvailable);
}
if (!BitConverter.IsLittleEndian)
{
throw new NotSupportedException(BigEndian_NotSupported);
}
Vector128 <uint> *state = stackalloc Vector128 <uint>[8]
{
Vector128.Create(0x6a09e667u),
Vector128.Create(0xbb67ae85u),
Vector128.Create(0x3c6ef372u),
Vector128.Create(0xa54ff53au),
Vector128.Create(0x510e527fu),
Vector128.Create(0x9b05688cu),
Vector128.Create(0x1f83d9abu),
Vector128.Create(0x5be0cd19u)
};
bool *flags = stackalloc bool[4];
Unsafe.InitBlock(flags, 0, 4);
SHADataContext[] contexts = new SHADataContext[4]
{
new SHADataContext(data1),
new SHADataContext(data2),
new SHADataContext(data3),
new SHADataContext(data4)
};
uint *blocks = stackalloc uint[16 * 4];
Vector128 <uint> *schedule = stackalloc Vector128 <uint> [64];
byte[][] hashes = AllocateHashs(4, sizeof(uint) * 8);
int concurrentHashes = 4, i;
do
{
for (i = 0; i < 4; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (!ctx.Complete)
{
ctx.PrepareBlock((byte *)(blocks + i * 16), sizeof(uint) * 16);
}
}
InitScheduleSHA256Parallel(schedule, blocks);
ProcessBlocksParallelSHA256(state, schedule);
for (i = 0; i < 4; ++i)
{
ref SHADataContext ctx = ref contexts[i];
if (flags[i] != ctx.Complete)
{
flags[i] = ctx.Complete;
fixed(byte *pHash = hashes[i])
{
ExtractHashState_SHA256(state, (uint *)pHash, i);
}
concurrentHashes -= 1;
}
}
}while (concurrentHashes > 2);
