public HMACNativeHashProvider(string hashAlgorithmId, ReadOnlySpan <byte> key)
{
Debug.Assert(Interop.BrowserCrypto.CanUseSubtleCrypto);
(_hashAlgorithm, _hashSizeInBytes) = SHANativeHashProvider.HashAlgorithmToPal(hashAlgorithmId);
_key = key.ToArray();
}
public static int MacDataOneShot(string hashAlgorithmId, ReadOnlySpan <byte> key, ReadOnlySpan <byte> data, Span <byte> destination)
{
(SimpleDigest hashName, int hashSizeInBytes) = SHANativeHashProvider.HashAlgorithmToPal(hashAlgorithmId);
Debug.Assert(destination.Length >= hashSizeInBytes);
Sign(hashName, key, data, destination);
return(hashSizeInBytes);
}
public static unsafe int MacDataOneShot(string hashAlgorithmId, ReadOnlySpan <byte> key, ReadOnlySpan <byte> data, Span <byte> destination)
{
(SimpleDigest hashName, int hashSizeInBytes) = SHANativeHashProvider.HashAlgorithmToPal(hashAlgorithmId);
Debug.Assert(destination.Length >= hashSizeInBytes);
fixed(byte *k = key)
fixed(byte *src = data)
fixed(byte *dest = destination)
{
int res = Interop.BrowserCrypto.Sign(hashName, k, key.Length, src, data.Length, dest, destination.Length);
Debug.Assert(res != 0);
}
return(hashSizeInBytes);
}