private static void TestBlake2b()
{
#if DEBUG
Blake2b h = new Blake2b();
// ======================================================
// From https://tools.ietf.org/html/rfc7693
byte[] pbData = StrUtil.Utf8.GetBytes("abc");
byte[] pbExpc = new byte[64] {
0xBA, 0x80, 0xA5, 0x3F, 0x98, 0x1C, 0x4D, 0x0D,
0x6A, 0x27, 0x97, 0xB6, 0x9F, 0x12, 0xF6, 0xE9,
0x4C, 0x21, 0x2F, 0x14, 0x68, 0x5A, 0xC4, 0xB7,
0x4B, 0x12, 0xBB, 0x6F, 0xDB, 0xFF, 0xA2, 0xD1,
0x7D, 0x87, 0xC5, 0x39, 0x2A, 0xAB, 0x79, 0x2D,
0xC2, 0x52, 0xD5, 0xDE, 0x45, 0x33, 0xCC, 0x95,
0x18, 0xD3, 0x8A, 0xA8, 0xDB, 0xF1, 0x92, 0x5A,
0xB9, 0x23, 0x86, 0xED, 0xD4, 0x00, 0x99, 0x23
};
byte[] pbC = h.ComputeHash(pbData);
if(!MemUtil.ArraysEqual(pbC, pbExpc))
throw new SecurityException("Blake2b-1");
// ======================================================
// Computed using the official b2sum tool
pbExpc = new byte[64] {
0x78, 0x6A, 0x02, 0xF7, 0x42, 0x01, 0x59, 0x03,
0xC6, 0xC6, 0xFD, 0x85, 0x25, 0x52, 0xD2, 0x72,
0x91, 0x2F, 0x47, 0x40, 0xE1, 0x58, 0x47, 0x61,
0x8A, 0x86, 0xE2, 0x17, 0xF7, 0x1F, 0x54, 0x19,
0xD2, 0x5E, 0x10, 0x31, 0xAF, 0xEE, 0x58, 0x53,
0x13, 0x89, 0x64, 0x44, 0x93, 0x4E, 0xB0, 0x4B,
0x90, 0x3A, 0x68, 0x5B, 0x14, 0x48, 0xB7, 0x55,
0xD5, 0x6F, 0x70, 0x1A, 0xFE, 0x9B, 0xE2, 0xCE
};
pbC = h.ComputeHash(MemUtil.EmptyByteArray);
if(!MemUtil.ArraysEqual(pbC, pbExpc))
throw new SecurityException("Blake2b-2");
// ======================================================
// Computed using the official b2sum tool
string strS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.:,;_-\r\n";
StringBuilder sb = new StringBuilder();
for(int i = 0; i < 1000; ++i) sb.Append(strS);
pbData = StrUtil.Utf8.GetBytes(sb.ToString());
pbExpc = new byte[64] {
0x59, 0x69, 0x8D, 0x3B, 0x83, 0xF4, 0x02, 0x4E,
0xD8, 0x99, 0x26, 0x0E, 0xF4, 0xE5, 0x9F, 0x20,
0xDC, 0x31, 0xEE, 0x5B, 0x45, 0xEA, 0xBB, 0xFC,
0x1C, 0x0A, 0x8E, 0xED, 0xAA, 0x7A, 0xFF, 0x50,
0x82, 0xA5, 0x8F, 0xBC, 0x4A, 0x46, 0xFC, 0xC5,
0xEF, 0x44, 0x4E, 0x89, 0x80, 0x7D, 0x3F, 0x1C,
0xC1, 0x94, 0x45, 0xBB, 0xC0, 0x2C, 0x95, 0xAA,
0x3F, 0x08, 0x8A, 0x93, 0xF8, 0x75, 0x91, 0xB0
};
Random r = new Random();
int p = 0;
while(p < pbData.Length)
{
int cb = r.Next(1, pbData.Length - p + 1);
h.TransformBlock(pbData, p, cb, pbData, p);
p += cb;
}
Debug.Assert(p == pbData.Length);
h.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
if(!MemUtil.ArraysEqual(h.Hash, pbExpc))
throw new SecurityException("Blake2b-3");
h.Clear();
#endif
}
public static string GetBlindedAddress(string address, string secret)
{
var pkh = Base58.Parse(address).GetBytes(3, 20);
var key = Hex.Parse(secret);
var blind = Blake2b.ComputeHash(20, key, pkh);
return(Base58.Convert(blind, Prefix));
}
private Task <IFlurlResponse> FormRequest(string dest, long id, UpdatedManga manga, DatabaseUser user)
{
var hash = Convert.ToBase64String(Blake2b.ComputeHash(16,
Encoding.UTF8.GetBytes($"{id}-{manga.Tome}-{manga.Number}")));
var text =
$"{manga.Date}: {manga.Name}.{Environment.NewLine}{manga.Tome} - {manga.Number}{Environment.NewLine}{manga.Href}";
return(SendRequest(dest, hash, user.State, text, manga.Href.ToString()));
}
public async Task SendOk(long state)
{
const string content = "Everything's ok :)";
await SendRequest(_config.Services.Tanser.Send,
Convert.ToBase64String(
Blake2b.ComputeHash(16, Encoding.UTF8.GetBytes($"{state}-{content}"))
),
state,
content, null);
}
public static ColorProfile GetOrAdd(ReadOnlySpan <byte> bytes)
{
#if BUILTIN_SPAN
Span <byte> hash = stackalloc byte[16];
Blake2b.ComputeAndWriteHash(16, bytes, hash);
#else
var hash = Blake2b.ComputeHash(16, bytes);
#endif
var guid = new Guid(hash);
return((dic.TryGetValue(guid, out var wref) && wref.TryGetTarget(out var prof)) ? prof : addOrUpdate(guid, bytes));
}
/// <summary>
/// Gets a hash of the current value stored in the session. Can be used to check if the value has changed since this method was last called.
/// </summary>
/// <param name="session">The ISession in which the value is stored.</param>
/// <param name="key">The key the value is stored against for the session.</param>
/// <returns>
/// A hash of the current session key's value. This will change dramatically if any of the key's value changes.
/// </returns>
public static byte[] GetValueHash(this ISession session, string key)
{
var valueString = session.GetString(key);
if (String.IsNullOrWhiteSpace(valueString))
{
return(null);
}
var valueBytes = Encoding.UTF8.GetBytes(valueString);
byte[] computedHash = Blake2b.ComputeHash(valueBytes);
return(computedHash);
}
public void TestBlake2bUtf8()
{
// ======================================================
// From https://tools.ietf.org/html/rfc7693
var pbData = StrUtil.Utf8.GetBytes("abc");
var pbExpc = new byte[]
{
0xBA, 0x80, 0xA5, 0x3F, 0x98, 0x1C, 0x4D, 0x0D,
0x6A, 0x27, 0x97, 0xB6, 0x9F, 0x12, 0xF6, 0xE9,
0x4C, 0x21, 0x2F, 0x14, 0x68, 0x5A, 0xC4, 0xB7,
0x4B, 0x12, 0xBB, 0x6F, 0xDB, 0xFF, 0xA2, 0xD1,
0x7D, 0x87, 0xC5, 0x39, 0x2A, 0xAB, 0x79, 0x2D,
0xC2, 0x52, 0xD5, 0xDE, 0x45, 0x33, 0xCC, 0x95,
0x18, 0xD3, 0x8A, 0xA8, 0xDB, 0xF1, 0x92, 0x5A,
0xB9, 0x23, 0x86, 0xED, 0xD4, 0x00, 0x99, 0x23
};
var pbC = _blake2bHash.ComputeHash(pbData);
Assert.That(MemUtil.ArraysEqual(pbC, pbExpc), Is.True);
}
public int Blake2B()
{
var result = 0;
unchecked
{
foreach (var bytes in _byteArrays)
{
var computeHash = Blake2b.ComputeHash(4, bytes);
result += BitConverter.ToInt32(computeHash, 0);
}
}
return(result);
}
public int Blake2B()
{
var result = 0;
unchecked
{
foreach (var str in _strings)
{
var computeHash = Blake2b.ComputeHash(4, Encoding.UTF8.GetBytes(str));
result += BitConverter.ToInt32(computeHash, 0);
}
}
return(result);
}
private static byte[] blake2bSelfTest()
{
var inc = Blake2b.CreateIncrementalHasher(blake2bCheck.Length);
foreach (int diglen in new[] { 20, 32, 48, 64 })
{
foreach (int msglen in new[] { 0, 3, 128, 129, 255, 1024 })
{
var msg = getTestSequence(msglen);
var key = getTestSequence(diglen);
inc.Update(Blake2b.ComputeHash(diglen, msg));
inc.Update(Blake2b.ComputeHash(diglen, key, msg));
}
}
return(inc.Finish());
}
public void TestBlake2bEmpty()
{
// ======================================================
// Computed using the official b2sum tool
Blake2b h = new Blake2b();
var pbExpc = new byte[64]
{
0x78, 0x6A, 0x02, 0xF7, 0x42, 0x01, 0x59, 0x03,
0xC6, 0xC6, 0xFD, 0x85, 0x25, 0x52, 0xD2, 0x72,
0x91, 0x2F, 0x47, 0x40, 0xE1, 0x58, 0x47, 0x61,
0x8A, 0x86, 0xE2, 0x17, 0xF7, 0x1F, 0x54, 0x19,
0xD2, 0x5E, 0x10, 0x31, 0xAF, 0xEE, 0x58, 0x53,
0x13, 0x89, 0x64, 0x44, 0x93, 0x4E, 0xB0, 0x4B,
0x90, 0x3A, 0x68, 0x5B, 0x14, 0x48, 0xB7, 0x55,
0xD5, 0x6F, 0x70, 0x1A, 0xFE, 0x9B, 0xE2, 0xCE
};
var pbC = h.ComputeHash(new byte[0]);
Assert.True(MemUtil.ArraysEqual(pbC, pbExpc));
}
private static void Blake2bLong(byte[] pbOut, int cbOut,
byte[] pbIn, int cbIn, Blake2b h)
{
Debug.Assert((h != null) && (h.HashSize == (64 * 8)));
byte[] pbOutLen = new byte[4];
MemUtil.UInt32ToBytesEx((uint)cbOut, pbOutLen, 0);
if (cbOut <= 64)
{
Blake2b hOut = ((cbOut == 64) ? h : new Blake2b(cbOut));
if (cbOut == 64)
{
hOut.Initialize();
}
hOut.TransformBlock(pbOutLen, 0, pbOutLen.Length, pbOutLen, 0);
hOut.TransformBlock(pbIn, 0, cbIn, pbIn, 0);
hOut.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
Array.Copy(hOut.Hash, pbOut, cbOut);
if (cbOut < 64)
{
hOut.Clear();
}
return;
}
h.Initialize();
h.TransformBlock(pbOutLen, 0, pbOutLen.Length, pbOutLen, 0);
h.TransformBlock(pbIn, 0, cbIn, pbIn, 0);
h.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
byte[] pbOutBuffer = new byte[64];
Array.Copy(h.Hash, pbOutBuffer, pbOutBuffer.Length);
int ibOut = 64 / 2;
Array.Copy(pbOutBuffer, pbOut, ibOut);
int cbToProduce = cbOut - ibOut;
h.Initialize();
while (cbToProduce > 64)
{
byte[] pbHash = h.ComputeHash(pbOutBuffer);
Array.Copy(pbHash, pbOutBuffer, 64);
Array.Copy(pbHash, 0, pbOut, ibOut, 64 / 2);
ibOut += 64 / 2;
cbToProduce -= 64 / 2;
MemUtil.ZeroByteArray(pbHash);
}
using (Blake2b hOut = new Blake2b(cbToProduce))
{
byte[] pbHash = hOut.ComputeHash(pbOutBuffer);
Array.Copy(pbHash, 0, pbOut, ibOut, cbToProduce);
MemUtil.ZeroByteArray(pbHash);
}
MemUtil.ZeroByteArray(pbOutBuffer);
}
public static byte[] Blake2bSimplified()
{
return(Blake2b.ComputeHash(BenchData.HashBytes, BenchData.Key, BenchData.Data));
}
public void RunBlake2Fast()
{
Blake2b.ComputeHash(_data);
}
private static void TestBlake2b()
{
#if DEBUG
Blake2b h = new Blake2b();
// ======================================================
// From https://tools.ietf.org/html/rfc7693
byte[] pbData = StrUtil.Utf8.GetBytes("abc");
byte[] pbExpc = new byte[64] {
0xBA, 0x80, 0xA5, 0x3F, 0x98, 0x1C, 0x4D, 0x0D,
0x6A, 0x27, 0x97, 0xB6, 0x9F, 0x12, 0xF6, 0xE9,
0x4C, 0x21, 0x2F, 0x14, 0x68, 0x5A, 0xC4, 0xB7,
0x4B, 0x12, 0xBB, 0x6F, 0xDB, 0xFF, 0xA2, 0xD1,
0x7D, 0x87, 0xC5, 0x39, 0x2A, 0xAB, 0x79, 0x2D,
0xC2, 0x52, 0xD5, 0xDE, 0x45, 0x33, 0xCC, 0x95,
0x18, 0xD3, 0x8A, 0xA8, 0xDB, 0xF1, 0x92, 0x5A,
0xB9, 0x23, 0x86, 0xED, 0xD4, 0x00, 0x99, 0x23
};
byte[] pbC = h.ComputeHash(pbData);
if (!MemUtil.ArraysEqual(pbC, pbExpc))
{
throw new SecurityException("Blake2b-1");
}
// ======================================================
// Computed using the official b2sum tool
pbExpc = new byte[64] {
0x78, 0x6A, 0x02, 0xF7, 0x42, 0x01, 0x59, 0x03,
0xC6, 0xC6, 0xFD, 0x85, 0x25, 0x52, 0xD2, 0x72,
0x91, 0x2F, 0x47, 0x40, 0xE1, 0x58, 0x47, 0x61,
0x8A, 0x86, 0xE2, 0x17, 0xF7, 0x1F, 0x54, 0x19,
0xD2, 0x5E, 0x10, 0x31, 0xAF, 0xEE, 0x58, 0x53,
0x13, 0x89, 0x64, 0x44, 0x93, 0x4E, 0xB0, 0x4B,
0x90, 0x3A, 0x68, 0x5B, 0x14, 0x48, 0xB7, 0x55,
0xD5, 0x6F, 0x70, 0x1A, 0xFE, 0x9B, 0xE2, 0xCE
};
pbC = h.ComputeHash(MemUtil.EmptyByteArray);
if (!MemUtil.ArraysEqual(pbC, pbExpc))
{
throw new SecurityException("Blake2b-2");
}
// ======================================================
// Computed using the official b2sum tool
string strS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.:,;_-\r\n";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 1000; ++i)
{
sb.Append(strS);
}
pbData = StrUtil.Utf8.GetBytes(sb.ToString());
pbExpc = new byte[64] {
0x59, 0x69, 0x8D, 0x3B, 0x83, 0xF4, 0x02, 0x4E,
0xD8, 0x99, 0x26, 0x0E, 0xF4, 0xE5, 0x9F, 0x20,
0xDC, 0x31, 0xEE, 0x5B, 0x45, 0xEA, 0xBB, 0xFC,
0x1C, 0x0A, 0x8E, 0xED, 0xAA, 0x7A, 0xFF, 0x50,
0x82, 0xA5, 0x8F, 0xBC, 0x4A, 0x46, 0xFC, 0xC5,
0xEF, 0x44, 0x4E, 0x89, 0x80, 0x7D, 0x3F, 0x1C,
0xC1, 0x94, 0x45, 0xBB, 0xC0, 0x2C, 0x95, 0xAA,
0x3F, 0x08, 0x8A, 0x93, 0xF8, 0x75, 0x91, 0xB0
};
Random r = new Random();
int p = 0;
while (p < pbData.Length)
{
int cb = r.Next(1, pbData.Length - p + 1);
h.TransformBlock(pbData, p, cb, pbData, p);
p += cb;
}
Debug.Assert(p == pbData.Length);
h.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
if (!MemUtil.ArraysEqual(h.Hash, pbExpc))
{
throw new SecurityException("Blake2b-3");
}
h.Clear();
#endif
}
private static void Blake2bLong(byte[] pbOut, int cbOut,
byte[] pbIn, int cbIn, Blake2b h)
{
Debug.Assert((h != null) && (h.HashSize == (64 * 8)));
byte[] pbOutLen = new byte[4];
MemUtil.UInt32ToBytesEx((uint)cbOut, pbOutLen, 0);
if(cbOut <= 64)
{
Blake2b hOut = ((cbOut == 64) ? h : new Blake2b(cbOut));
if(cbOut == 64) hOut.Initialize();
hOut.TransformBlock(pbOutLen, 0, pbOutLen.Length, pbOutLen, 0);
hOut.TransformBlock(pbIn, 0, cbIn, pbIn, 0);
hOut.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
Array.Copy(hOut.Hash, pbOut, cbOut);
if(cbOut < 64) hOut.Clear();
return;
}
h.Initialize();
h.TransformBlock(pbOutLen, 0, pbOutLen.Length, pbOutLen, 0);
h.TransformBlock(pbIn, 0, cbIn, pbIn, 0);
h.TransformFinalBlock(MemUtil.EmptyByteArray, 0, 0);
byte[] pbOutBuffer = new byte[64];
Array.Copy(h.Hash, pbOutBuffer, pbOutBuffer.Length);
int ibOut = 64 / 2;
Array.Copy(pbOutBuffer, pbOut, ibOut);
int cbToProduce = cbOut - ibOut;
h.Initialize();
while(cbToProduce > 64)
{
byte[] pbHash = h.ComputeHash(pbOutBuffer);
Array.Copy(pbHash, pbOutBuffer, 64);
Array.Copy(pbHash, 0, pbOut, ibOut, 64 / 2);
ibOut += 64 / 2;
cbToProduce -= 64 / 2;
MemUtil.ZeroByteArray(pbHash);
}
using(Blake2b hOut = new Blake2b(cbToProduce))
{
byte[] pbHash = hOut.ComputeHash(pbOutBuffer);
Array.Copy(pbHash, 0, pbOut, ibOut, cbToProduce);
MemUtil.ZeroByteArray(pbHash);
}
MemUtil.ZeroByteArray(pbOutBuffer);
}