public void ToHashSizeInBytes()
{
foreach (HashAlgorithmName name in this.GetNames())
{
int size = HashAlgorithmConvertor.ToHashSizeInBytes(name);
HashAlgorithm algorithm = HashAlgorithmConvertor.ToHashAlgorithm(name);
Assert.AreEqual(algorithm.HashSize / 8, size);
}
}
private static void ConstructAsn1(HashAlgorithmName hashAlgorithmName, ReadOnlySpan <byte> digest, AsnWriter asnWriter)
{
string oid = HashAlgorithmConvertor.ToOid(hashAlgorithmName);
int size = HashAlgorithmConvertor.ToHashSizeInBytes(hashAlgorithmName);
if (digest.Length != size)
{
throw new ArgumentOutOfRangeException(nameof(digest), $"digest has bad length. Expected size of {hashAlgorithmName.Name} digest is {size}B, actual length is {digest.Length}.");
}
// Digest info
asnWriter.PushSequence();
// AlgorithmIdetifier
asnWriter.PushSequence();
asnWriter.WriteObjectIdentifier(oid);
asnWriter.WriteNull();
asnWriter.PopSequence();
asnWriter.WriteOctetString(digest);
asnWriter.PopSequence();
}