internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out PssParamsAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader explicitReader;
AsnValueReader defaultReader;
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref explicitReader, rebind, out decoded.HashAlgorithm);
explicitReader.ThrowIfNotEmpty();
}
else
{
defaultReader = new AsnValueReader(DefaultHashAlgorithm, AsnEncodingRules.DER);
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref defaultReader, rebind, out decoded.HashAlgorithm);
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref explicitReader, rebind, out decoded.MaskGenAlgorithm);
explicitReader.ThrowIfNotEmpty();
}
else
{
defaultReader = new AsnValueReader(DefaultMaskGenAlgorithm, AsnEncodingRules.DER);
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref defaultReader, rebind, out decoded.MaskGenAlgorithm);
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 2));
if (!explicitReader.TryReadInt32(out decoded.SaltLength))
{
explicitReader.ThrowIfNotEmpty();
}
explicitReader.ThrowIfNotEmpty();
}
else
{
defaultReader = new AsnValueReader(DefaultSaltLength, AsnEncodingRules.DER);
if (!defaultReader.TryReadInt32(out decoded.SaltLength))
{
defaultReader.ThrowIfNotEmpty();
}
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 3));
if (!explicitReader.TryReadInt32(out decoded.TrailerField))
{
explicitReader.ThrowIfNotEmpty();
}
explicitReader.ThrowIfNotEmpty();
}
else
{
defaultReader = new AsnValueReader(DefaultTrailerField, AsnEncodingRules.DER);
if (!defaultReader.TryReadInt32(out decoded.TrailerField))
{
defaultReader.ThrowIfNotEmpty();
}
}
sequenceReader.ThrowIfNotEmpty();
}