internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out MessageImprint decoded)
{
if (reader == null)
throw new ArgumentNullException(nameof(reader));
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(sequenceReader, out decoded.HashAlgorithm);
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory<byte> tmpHashedMessage))
{
decoded.HashedMessage = tmpHashedMessage;
}
else
{
decoded.HashedMessage = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out MessageImprint decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref sequenceReader, rebind, out decoded.HashAlgorithm);
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.HashedMessage = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.HashedMessage = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out MessageImprint decoded)
{
Decode(ref reader, Asn1Tag.Sequence, rebind, out decoded);
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out MessageImprint decoded)
{
try
{
DecodeCore(ref reader, expectedTag, rebind, out decoded);
}
catch (AsnContentException e)
{
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
}
}