internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out RecipientEncryptedKeyAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; KeyAgreeRecipientIdentifierAsn.Decode(ref sequenceReader, rebind, out decoded.Rid); if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan)) { decoded.EncryptedKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } else { decoded.EncryptedKey = sequenceReader.ReadOctetString(); } sequenceReader.ThrowIfNotEmpty(); }
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(); } }