internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out SignerIdentifierAsn decoded)
{
decoded = default;
Asn1Tag tag = reader.PeekTag();
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
{
IssuerAndSerialNumberAsn tmpIssuerAndSerialNumber;
IssuerAndSerialNumberAsn.Decode(ref reader, rebind, out tmpIssuerAndSerialNumber);
decoded.IssuerAndSerialNumber = tmpIssuerAndSerialNumber;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
if (reader.TryReadPrimitiveOctetStringBytes(new Asn1Tag(TagClass.ContextSpecific, 0), out tmpSpan))
{
decoded.SubjectKeyIdentifier = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.SubjectKeyIdentifier = reader.ReadOctetString(new Asn1Tag(TagClass.ContextSpecific, 0));
}
}
else
{
throw new CryptographicException();
}
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out KeyAgreeRecipientIdentifierAsn decoded)
{
decoded = default;
Asn1Tag tag = reader.PeekTag();
if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
{
IssuerAndSerialNumberAsn tmpIssuerAndSerialNumber;
IssuerAndSerialNumberAsn.Decode(ref reader, rebind, out tmpIssuerAndSerialNumber);
decoded.IssuerAndSerialNumber = tmpIssuerAndSerialNumber;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
RecipientKeyIdentifier tmpRKeyId;
RecipientKeyIdentifier.Decode(ref reader, new Asn1Tag(TagClass.ContextSpecific, 0), rebind, out tmpRKeyId);
decoded.RKeyId = tmpRKeyId;
}
else
{
throw new CryptographicException();
}
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out IssuerAndSerialNumberAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (!sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag((UniversalTagNumber)16)))
{
throw new CryptographicException();
}
tmpSpan = sequenceReader.ReadEncodedValue();
decoded.Issuer = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
tmpSpan = sequenceReader.ReadIntegerBytes();
decoded.SerialNumber = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out IssuerAndSerialNumberAsn decoded)
{
Decode(ref reader, Asn1Tag.Sequence, rebind, out decoded);
}
