internal static ImmutableArray <byte> CalculateChecksum(byte[] buffer, int offset, int count, SourceHashAlgorithm algorithmId)
{
using (var algorithm = CryptographicHashProvider.TryGetAlgorithm(algorithmId))
{
Debug.Assert(algorithm != null);
return(ImmutableArray.Create(algorithm.ComputeHash(buffer, offset, count)));
}
}
internal static ImmutableArray <byte> CalculateChecksum(Stream stream, SourceHashAlgorithm algorithmId)
{
using (var algorithm = CryptographicHashProvider.TryGetAlgorithm(algorithmId))
{
Debug.Assert(algorithm != null);
if (stream.CanSeek)
{
stream.Seek(0, SeekOrigin.Begin);
}
return(ImmutableArray.Create(algorithm.ComputeHash(stream)));
}
}