internal static void Decode(AsnReader reader, out SecretBagAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
Decode(reader, Asn1Tag.Sequence, out decoded);
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out SecretBagAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
decoded.SecretTypeId = sequenceReader.ReadObjectIdentifierAsString();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
decoded.SecretValue = explicitReader.ReadEncodedValue();
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out SecretBagAsn decoded)
{
try
{
DecodeCore(ref reader, expectedTag, rebind, out decoded);
}
catch (AsnContentException e)
{
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
}
}
private static void DecodeCore(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out SecretBagAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader explicitReader;
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
decoded.SecretTypeId = sequenceReader.ReadObjectIdentifier();
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
tmpSpan = explicitReader.ReadEncodedValue();
decoded.SecretValue = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
explicitReader.ThrowIfNotEmpty();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out SecretBagAsn decoded)
{
Decode(ref reader, Asn1Tag.Sequence, rebind, out decoded);
}