internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out OriginatorInfoAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader collectionReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0))) { // Decode SEQUENCE OF for CertificateSet { collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 0)); var tmpList = new List <CertificateChoiceAsn>(); CertificateChoiceAsn tmpItem; while (collectionReader.HasData) { CertificateChoiceAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.CertificateSet = tmpList.ToArray(); } } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1))) { // Decode SEQUENCE OF for RevocationInfoChoices { collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 1)); var tmpList = new List <ReadOnlyMemory <byte> >(); ReadOnlyMemory <byte> tmpItem; while (collectionReader.HasData) { tmpSpan = collectionReader.ReadEncodedValue(); tmpItem = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); tmpList.Add(tmpItem); } decoded.RevocationInfoChoices = tmpList.ToArray(); } } sequenceReader.ThrowIfNotEmpty(); }
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, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out SignedDataAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader collectionReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (!sequenceReader.TryReadInt32(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } // Decode SEQUENCE OF for DigestAlgorithms { collectionReader = sequenceReader.ReadSetOf(); var tmpList = new List <AlgorithmIdentifierAsn>(); AlgorithmIdentifierAsn tmpItem; while (collectionReader.HasData) { AlgorithmIdentifierAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.DigestAlgorithms = tmpList.ToArray(); } EncapsulatedContentInfoAsn.Decode(ref sequenceReader, rebind, out decoded.EncapContentInfo); if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0))) { // Decode SEQUENCE OF for CertificateSet { collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 0)); var tmpList = new List <CertificateChoiceAsn>(); CertificateChoiceAsn tmpItem; while (collectionReader.HasData) { CertificateChoiceAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.CertificateSet = tmpList.ToArray(); } } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1))) { // Decode SEQUENCE OF for Crls { collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 1)); var tmpList = new List <ReadOnlyMemory <byte> >(); ReadOnlyMemory <byte> tmpItem; while (collectionReader.HasData) { tmpSpan = collectionReader.ReadEncodedValue(); tmpItem = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); tmpList.Add(tmpItem); } decoded.Crls = tmpList.ToArray(); } } // Decode SEQUENCE OF for SignerInfos { collectionReader = sequenceReader.ReadSetOf(); var tmpList = new List <SignerInfoAsn>(); SignerInfoAsn tmpItem; while (collectionReader.HasData) { SignerInfoAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.SignerInfos = tmpList.ToArray(); } sequenceReader.ThrowIfNotEmpty(); }