internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out Rfc3161TimeStampReq decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader defaultReader; AsnValueReader collectionReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (!sequenceReader.TryReadInt32(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } MessageImprint.Decode(ref sequenceReader, rebind, out decoded.MessageImprint); if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.ObjectIdentifier)) { decoded.ReqPolicy = sequenceReader.ReadObjectIdentifier(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer)) { tmpSpan = sequenceReader.ReadIntegerBytes(); decoded.Nonce = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean)) { decoded.CertReq = sequenceReader.ReadBoolean(); } else { defaultReader = new AsnValueReader(DefaultCertReq, AsnEncodingRules.DER); decoded.CertReq = defaultReader.ReadBoolean(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0))) { // Decode SEQUENCE OF for Extensions { collectionReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0)); var tmpList = new List <X509ExtensionAsn>(); X509ExtensionAsn tmpItem; while (collectionReader.HasData) { X509ExtensionAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.Extensions = tmpList.ToArray(); } } sequenceReader.ThrowIfNotEmpty(); }
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out Rfc3161TstInfo decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader explicitReader; AsnValueReader defaultReader; AsnValueReader collectionReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (!sequenceReader.TryReadInt32(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } decoded.Policy = sequenceReader.ReadObjectIdentifier(); MessageImprint.Decode(ref sequenceReader, rebind, out decoded.MessageImprint); tmpSpan = sequenceReader.ReadIntegerBytes(); decoded.SerialNumber = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); decoded.GenTime = sequenceReader.ReadGeneralizedTime(); if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Sequence)) { Rfc3161Accuracy tmpAccuracy; Rfc3161Accuracy.Decode(ref sequenceReader, rebind, out tmpAccuracy); decoded.Accuracy = tmpAccuracy; } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean)) { decoded.Ordering = sequenceReader.ReadBoolean(); } else { defaultReader = new AsnValueReader(DefaultOrdering, AsnEncodingRules.DER); decoded.Ordering = defaultReader.ReadBoolean(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer)) { tmpSpan = sequenceReader.ReadIntegerBytes(); decoded.Nonce = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0))) { explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0)); GeneralNameAsn tmpTsa; GeneralNameAsn.Decode(ref explicitReader, rebind, out tmpTsa); decoded.Tsa = tmpTsa; explicitReader.ThrowIfNotEmpty(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1))) { // Decode SEQUENCE OF for Extensions { collectionReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1)); var tmpList = new List <X509ExtensionAsn>(); X509ExtensionAsn tmpItem; while (collectionReader.HasData) { X509ExtensionAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.Extensions = tmpList.ToArray(); } } sequenceReader.ThrowIfNotEmpty(); }