public AppleHmacProvider(string hashAlgorithmId, ReadOnlySpan <byte> key)
{
PAL_HashAlgorithm algorithm = HashAlgorithmNames.HashAlgorithmToPal(hashAlgorithmId);
_liteHmac = new LiteHmac(algorithm, key, preinitialize: false);
_key = key.ToArray();
}
internal static int HmacStream(
string hashAlgorithmId,
int hashSizeInBytes,
ReadOnlySpan <byte> key,
Stream source,
Span <byte> destination)
{
LiteHmac hash = CreateHmac(hashAlgorithmId, key);
return(ProcessStream(hash, source, destination));
}
internal static byte[] HmacStream(
string hashAlgorithmId,
int hashSizeInBytes,
ReadOnlySpan <byte> key,
Stream source)
{
byte[] result = new byte[hashSizeInBytes];
LiteHmac hash = CreateHmac(hashAlgorithmId, key);
int written = ProcessStream(hash, source, result);
Debug.Assert(written == hashSizeInBytes);
return(result);
}
internal static ValueTask <byte[]> HmacStreamAsync(
string hashAlgorithmId,
int hashSizeInBytes,
ReadOnlySpan <byte> key,
Stream source,
CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(ValueTask.FromCanceled <byte[]>(cancellationToken));
}
LiteHmac hash = CreateHmac(hashAlgorithmId, key);
return(ProcessStreamAsync(hash, source, cancellationToken));
}
public HmacHashProvider(string hashAlgorithmId, ReadOnlySpan <byte> key)
{
_liteHmac = LiteHashProvider.CreateHmac(hashAlgorithmId, key);
}