protected virtual bool TryHashData(ReadOnlySpan <byte> data, Span <byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten)
{
// If this is an algorithm that we ship, then we can use the hash one-shot.
if (this is IRuntimeAlgorithm)
{
return(HashOneShotHelpers.TryHashData(hashAlgorithm, data, destination, out bytesWritten));
}
// If this is not our algorithm implementation, for compatibility purposes we need to
// call out to the HashData virtual.
byte[] result;
// Use ArrayPool.Shared instead of CryptoPool because the array is passed out.
byte[] array = ArrayPool <byte> .Shared.Rent(data.Length);
try
{
data.CopyTo(array);
result = HashData(array, 0, data.Length, hashAlgorithm);
}
finally
{
Array.Clear(array, 0, data.Length);
ArrayPool <byte> .Shared.Return(array);
}
if (destination.Length >= result.Length)
{
new ReadOnlySpan <byte>(result).CopyTo(destination);
bytesWritten = result.Length;
return(true);
}
bytesWritten = 0;
return(false);
}
protected override bool TryHashData(ReadOnlySpan <byte> data, Span <byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten)
{
if (hashAlgorithm != HashAlgorithmName.SHA1)
{
throw new CryptographicException(SR.Cryptography_UnknownHashAlgorithm, hashAlgorithm.Name);
}
return(HashOneShotHelpers.TryHashData(hashAlgorithm, data, destination, out bytesWritten));
}
protected override bool TryHashData(ReadOnlySpan <byte> data, Span <byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten) => HashOneShotHelpers.TryHashData(hashAlgorithm, data, destination, out bytesWritten);