internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out PssParamsAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
AsnReader defaultReader;
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(explicitReader, out decoded.HashAlgorithm);
explicitReader.ThrowIfNotEmpty();
}
else
{
defaultReader = new AsnReader(s_defaultHashAlgorithm, AsnEncodingRules.DER);
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(defaultReader, out decoded.HashAlgorithm);
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(explicitReader, out decoded.MaskGenAlgorithm);
explicitReader.ThrowIfNotEmpty();
}
else
{
defaultReader = new AsnReader(s_defaultMaskGenAlgorithm, AsnEncodingRules.DER);
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(defaultReader, 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 AsnReader(s_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 AsnReader(s_defaultTrailerField, AsnEncodingRules.DER);
if (!defaultReader.TryReadInt32(out decoded.TrailerField))
{
defaultReader.ThrowIfNotEmpty();
}
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, out GeneralNameAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
Asn1Tag tag = reader.PeekTag();
AsnReader explicitReader;
if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
System.Security.Cryptography.Asn1.OtherNameAsn tmpOtherName;
System.Security.Cryptography.Asn1.OtherNameAsn.Decode(reader, new Asn1Tag(TagClass.ContextSpecific, 0), out tmpOtherName);
decoded.OtherName = tmpOtherName;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
decoded.Rfc822Name = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 1), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
{
decoded.DnsName = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 2), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
{
decoded.X400Address = reader.ReadEncodedValue();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 4)))
{
explicitReader = reader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
decoded.DirectoryName = explicitReader.ReadEncodedValue();
explicitReader.ThrowIfNotEmpty();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 5)))
{
System.Security.Cryptography.Asn1.EdiPartyNameAsn tmpEdiPartyName;
System.Security.Cryptography.Asn1.EdiPartyNameAsn.Decode(reader, new Asn1Tag(TagClass.ContextSpecific, 5), out tmpEdiPartyName);
decoded.EdiPartyName = tmpEdiPartyName;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 6)))
{
decoded.Uri = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 6), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 7)))
{
if (reader.TryReadPrimitiveOctetStringBytes(new Asn1Tag(TagClass.ContextSpecific, 7), out ReadOnlyMemory <byte> tmpIPAddress))
{
decoded.IPAddress = tmpIPAddress;
}
else
{
decoded.IPAddress = reader.ReadOctetString(new Asn1Tag(TagClass.ContextSpecific, 7));
}
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 8)))
{
decoded.RegisteredId = reader.ReadObjectIdentifierAsString(new Asn1Tag(TagClass.ContextSpecific, 8));
}
else
{
throw new CryptographicException();
}
}
