// derives a subkey from ctx and srcKey. ctx should be hardcoded,
// globally unique, and application-specific. A good format for ctx strings is:
//
// [application] [commit timestamp] [purpose]
//
// e.g.:
//
// example.com 2019-12-25 16:18:03 session tokens v1
//
// The purpose of these requirements is to ensure that an attacker cannot trick
// two different applications into using the same context string.
internal unsafe PBKDF_Blake3NotBuiltInAdapter(byte[] srcKey, byte[] ctx)
{
if (srcKey == null)
{
throw new ArgumentNullHashLibException(nameof(srcKey));
}
if (ctx == null)
{
throw new ArgumentNullHashLibException(nameof(ctx));
}
SrcKey = srcKey.DeepCopy();
UInt32[] ivWords = Blake3.IV.DeepCopy();
// construct the derivation Hasher and get the derivationIV
var derivationIv = new Blake3(derivationIVLen, ivWords, flagDeriveKeyContext)
.ComputeBytes(ctx).GetBytes();
fixed(byte *srcPtr = derivationIv)
{
fixed(UInt32 *destPtr = ivWords)
{
Converters.le32_copy((IntPtr)srcPtr, 0, (IntPtr)destPtr, 0, Blake3.KeyLengthInBytes);
}
}
Xof = new Blake3XOF(32, ivWords, flagDeriveKeyMaterial);
} // end cctr
// derives a subkey from ctx and srcKey. ctx should be hardcoded,
// globally unique, and application-specific. A good format for ctx strings is:
//
// [application] [commit timestamp] [purpose]
//
// e.g.:
//
// example.com 2019-12-25 16:18:03 session tokens v1
//
// The purpose of these requirements is to ensure that an attacker cannot trick
// two different applications into using the same context string.
internal unsafe PBKDFBlake3NotBuiltIn(byte[] srcKey, byte[] ctx)
{
if (srcKey == null)
{
throw new ArgumentNullException(nameof(srcKey));
}
if (ctx == null)
{
throw new ArgumentNullException(nameof(ctx));
}
_srcKey = ArrayUtils.Clone(srcKey);
var ivWords = ArrayUtils.Clone(Blake3.IV);
// construct the derivation Hasher and get the derivationIV
var derivationIv = new Blake3(derivationIVLen, ivWords, flagDeriveKeyContext)
.ComputeBytes(ctx).GetBytes();
fixed(byte *srcPtr = derivationIv)
{
fixed(uint *destPtr = ivWords)
{
Converters.le32_copy(srcPtr, 0, destPtr, 0, Blake3.KeyLengthInBytes);
}
}
_xof = new Blake3XOF(32, ivWords, flagDeriveKeyMaterial);
}
public string GetStringHash(string str)
{
Blake3 blake3 = new Blake3();
byte[] hash = blake3.ComputeHash(Encoding.UTF8.GetBytes(str));
return(Convert.ToBase64String(hash));
}
double BenchmarkHashingThroughput(int trial, TimeSpan duration)
{
Console.Write($"Run {trial}: ");
var data = CreateTestData(TestDataSize);
var elapsed = TimeSpan.Zero;
var totalData = 0;
do
{
var hasher = new Blake3();
var stopwatch = Stopwatch.StartNew();
hasher.ComputeHash(data);
stopwatch.Stop();
elapsed += stopwatch.Elapsed;
totalData += data.Length;
} while(elapsed < duration);
var mbps = ToMegabytes(totalData / elapsed.TotalSeconds);
Console.WriteLine($"{mbps:N3}MB/second");
return(mbps);
}
public static IHash CreateBlake3_256(byte[] a_Key) => Blake3.CreateBlake3(HashSizeEnum.HashSize256, a_Key);
void CanCreateBlake3()
{
var hash = new Blake3();
}
private static IHash Core(string hash_string)
{
string hash = Strip(hash_string);
switch (hash)
{
#region NullDigest
case "nulldigest":
return(new NullDigest());
#endregion
#region Checksum
case "crc16":
case "crcbuypass":
case "crc16buypass":
return(new CRC16_BUYPASS());
case "crc32":
case "crcpkzip":
case "crc32pkzip":
return(new CRC32_PKZIP());
case "crccastagnoli":
case "crc32castagnoli":
return(new CRC32_CASTAGNOLI());
case "crc64":
case "crcecma":
case "crc64ecma":
case "crc64ecma182":
return(new CRC64_ECMA_182());
case "adler":
case "adler32":
return(new Adler32());
#endregion
#region Crypto
case "has160":
return(new HAS160());
case "panama":
return(new Panama());
case "whirlpool":
return(new WhirlPool());
#region Gost Hash Family
case "gost":
return(new Gost());
case "gost256":
case "gost2012":
case "gost2012256":
case "gost2562012":
case "gost34112012256":
return(new GOST3411_2012_256());
case "gost512":
case "gost2012512":
case "gost5122012":
case "gost34112012512":
return(new GOST3411_2012_512());
#endregion
#region Haval Hash Family
case "haval3128":
return(new Haval_3_128());
case "haval4128":
return(new Haval_4_128());
case "haval5128":
return(new Haval_5_128());
case "haval3160":
return(new Haval_3_160());
case "haval4160":
return(new Haval_4_160());
case "haval5160":
return(new Haval_5_160());
case "haval3192":
return(new Haval_3_192());
case "haval4192":
return(new Haval_4_192());
case "haval5192":
return(new Haval_5_192());
case "haval3224":
return(new Haval_3_224());
case "haval4224":
return(new Haval_4_224());
case "haval5224":
return(new Haval_5_224());
case "haval3256":
return(new Haval_3_256());
case "haval4256":
return(new Haval_4_256());
case "haval5256":
return(new Haval_5_256());
#endregion
#region RadioGatun Hash Family
case "radiogatun":
case "radiogatun32":
return(new RadioGatun32());
case "radiogatun64":
return(new RadioGatun64());
#endregion
#region Grindahl Hash Family
case "Grindahl":
case "Grindahl256":
return(new Grindahl256());
case "grindahl512":
return(new Grindahl512());
#endregion
#region RIPEMD Hash Family
case "ripemd":
return(new RIPEMD());
case "ripemd128":
return(new RIPEMD128());
case "ripemd160":
return(new RIPEMD160());
case "ripemd256":
return(new RIPEMD256());
case "ripemd320":
return(new RIPEMD320());
#endregion
#region Snefru Hash Family
case "Snefru":
case "Snefru8128":
return(new Snefru(8, 128));
case "Snefru8256":
return(new Snefru(8, 256));
#endregion
#region MD Hash Family
case "md2":
return(new MD2());
case "md4":
return(new MD4());
case "md5":
return(new MD5());
#endregion
#region SHA Hash Family
case "sha0":
return(new SHA0());
case "sha1":
return(new SHA1());
case "sha2224":
return(new SHA2_224());
case "sha2256":
return(new SHA2_256());
case "sha2384":
return(new SHA2_384());
case "sha2512":
return(new SHA2_512());
case "sha2512224":
return(new SHA2_512_224());
case "sha2512256":
return(new SHA2_512_256());
case "sha3224":
return(new SHA3_224());
case "sha3256":
return(new SHA3_256());
case "sha3384":
return(new SHA3_384());
case "sha3512":
return(new SHA3_512());
case "keccak224":
return(new Keccak_224());
case "keccak256":
return(new Keccak_256());
case "keccak288":
return(new Keccak_288());
case "keccak384":
return(new Keccak_384());
case "keccak512":
return(new Keccak_512());
#endregion
#region Blake Hash Family
case "blake2b":
return(new Blake2B(new Blake2BConfig(), null));
case "blake2b160":
return(new Blake2B(new Blake2BConfig(HashSizeEnum.HashSize160), null));
case "blake2b256":
return(new Blake2B(new Blake2BConfig(HashSizeEnum.HashSize256), null));
case "blake2b384":
return(new Blake2B(new Blake2BConfig(HashSizeEnum.HashSize384), null));
case "blake2b512":
return(new Blake2B(new Blake2BConfig(HashSizeEnum.HashSize512), null));
case "blake2s":
return(new Blake2S(new Blake2SConfig(), null));
case "blake2s128":
return(new Blake2S(new Blake2SConfig(HashSizeEnum.HashSize128), null));
case "blake2s160":
return(new Blake2S(new Blake2SConfig(HashSizeEnum.HashSize160), null));
case "blake2s224":
return(new Blake2S(new Blake2SConfig(HashSizeEnum.HashSize224), null));
case "blake2s256":
return(new Blake2S(new Blake2SConfig(HashSizeEnum.HashSize256), null));
case "blake3":
return(Blake3.CreateBlake3(HashSizeEnum.HashSize256, null));
case "blake3256":
return(Blake3.CreateBlake3(HashSizeEnum.HashSize256, null));
#endregion
#region Tiger Hash Family
case "tiger3128":
return(Tiger_128.CreateRound3());
case "tiger3160":
return(Tiger_160.CreateRound3());
case "tiger3192":
return(Tiger_192.CreateRound3());
case "tiger4128":
return(Tiger_128.CreateRound4());
case "tiger4160":
return(Tiger_160.CreateRound4());
case "tiger4192":
return(Tiger_192.CreateRound4());
case "tiger5128":
return(Tiger_128.CreateRound5());
case "tiger5160":
return(Tiger_160.CreateRound5());
case "tiger5192":
return(Tiger_192.CreateRound5());
#endregion
#region Tiger2 Hash Family
case "tiger23128":
return(Tiger2_128.CreateRound3());
case "tiger23160":
return(Tiger2_160.CreateRound3());
case "tiger23192":
return(Tiger2_192.CreateRound3());
case "tiger24128":
return(Tiger2_128.CreateRound4());
case "tiger24160":
return(Tiger2_160.CreateRound4());
case "tiger24192":
return(Tiger2_192.CreateRound4());
case "tiger25128":
return(Tiger2_128.CreateRound5());
case "tiger25160":
return(Tiger2_160.CreateRound5());
case "tiger25192":
return(Tiger2_192.CreateRound5());
#endregion
#endregion
#region Hash32
case "ap":
return(new AP());
case "bernstein":
return(new Bernstein());
case "bernstein1":
return(new Bernstein1());
case "bkdr":
return(new BKDR());
case "dek":
return(new DEK());
case "djb":
return(new DJB());
case "elf":
return(new ELF());
case "fnv":
return(new FNV());
case "fnv1a":
return(new FNV1a());
case "jenkins3":
return(new Jenkins3());
case "js":
return(new JS());
case "murmur2":
return(new Murmur2());
case "murmurhash332":
case "murmurhash332x86":
case "murmurhash3x8632":
return(new MurmurHash3_x86_32());
case "oneattime":
return(new OneAtTime());
case "pjw":
return(new PJW());
case "rotating":
return(new Rotating());
case "rs":
return(new RS());
case "sdbm":
return(new SDBM());
case "shiftandxor":
return(new ShiftAndXor());
case "superfast":
return(new SuperFast());
case "xxhash32":
return(new XXHash32());
#endregion
#region Hash64
case "fnv64":
return(new FNV64());
case "fnv1a64":
return(new FNV1a64());
case "murmur264":
return(new Murmur2_64());
case "siphash24":
return(new SipHash2_4());
case "xxhash64":
return(new XXHash64());
#endregion
#region Hash128
case "murmurhash3128":
case "murmurhash3128x86":
case "murmurhash3x86128":
return(new MurmurHash3_x86_128());
case "murmurhash3128x64":
case "murmurhash3x64128":
return(new MurmurHash3_x64_128());
#endregion
}
throw new NotImplementedHashLibException($"Hash string: \"{hash_string}\" is unknown or not in correct format.");
}
public xs8()
{
blake3 = new Blake3();
rng = new RNGCryptoServiceProvider();
}
