public byte[] ComputeHash(Stream data, int hashLength = 32, int passes = 3)
{
if (data.Length < hashLength)
{
byte[] bytes = new byte[hashLength];
data.Read(bytes, 0, hashLength);
return(ComputeHash(bytes, hashLength, passes));
}
prng = new Prng((byte)data.Length);
uint seed = 0;
while (data.Position < data.Length)
{
byte b = (byte)data.ReadByte();
seed ^= prng.NextByte((byte)(b * data.Position ^ seed));
}
prng = new Prng(seed);
this.result = new byte[hashLength];
for (int i = 0; i < passes * 2; i++)
{
data.Position = 0;
while (data.Position < data.Length)
{
byte b = (byte)data.ReadByte();
result[data.Position % hashLength] += (byte)(prng.NextByte(b) ^ (prng.NextByte((byte)data.Position) * b));
}
}
return(result);
}
public new byte[] ComputeHash(byte[] data, int hashLength = 32, int passes = 3)
{
prng = new Prng((byte)data.Length);
uint seed = 0;
for (int i = 0; i < data.Length; i++)
{
seed += prng.NextByte((byte)(data[i] * i ^ seed));
}
prng = new Prng(seed);
data = pad(data, hashLength);
HashCore(data, hashLength, passes);
return(result);
}