internal static void Decode(AsnReader reader, out CertificateChoiceAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
Asn1Tag tag = reader.PeekTag();
if (tag.HasSameClassAndValue(new Asn1Tag((UniversalTagNumber)16)))
{
decoded.Certificate = reader.ReadEncodedValue();
}
else
{
throw new CryptographicException();
}
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out CertificateChoiceAsn decoded)
{
decoded = default;
Asn1Tag tag = reader.PeekTag();
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (tag.HasSameClassAndValue(new Asn1Tag((UniversalTagNumber)16)))
{
tmpSpan = reader.ReadEncodedValue();
decoded.Certificate = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
throw new CryptographicException();
}
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out CertificateChoiceAsn decoded)
{
try
{
DecodeCore(ref reader, rebind, out decoded);
}
catch (AsnContentException e)
{
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
}
}
private static void DecodeCore(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out CertificateChoiceAsn decoded)
{
decoded = default;
Asn1Tag tag = reader.PeekTag();
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (tag.HasSameClassAndValue(new Asn1Tag((UniversalTagNumber)16)))
{
tmpSpan = reader.ReadEncodedValue();
decoded.Certificate = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
tmpSpan = reader.ReadEncodedValue();
decoded.ExtendedCertificate = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
tmpSpan = reader.ReadEncodedValue();
decoded.AttributeCertificateV1 = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
{
tmpSpan = reader.ReadEncodedValue();
decoded.AttributeCertificateV2 = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
{
System.Security.Cryptography.Pkcs.Asn1.OtherCertificateFormat tmpOtherCertificateFormat;
System.Security.Cryptography.Pkcs.Asn1.OtherCertificateFormat.Decode(ref reader, new Asn1Tag(TagClass.ContextSpecific, 3), rebind, out tmpOtherCertificateFormat);
decoded.OtherCertificateFormat = tmpOtherCertificateFormat;
}
else
{
throw new CryptographicException();
}
}
