public static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory<byte> rebind, out X509ExtensionAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader defaultReader; ReadOnlySpan<byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan<byte> tmpSpan; decoded.ExtnId = sequenceReader.ReadObjectIdentifier(); if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean)) { decoded.Critical = sequenceReader.ReadBoolean(); } else { defaultReader = new AsnValueReader(DefaultCritical, AsnEncodingRules.DER); decoded.Critical = defaultReader.ReadBoolean(); } if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan)) { decoded.ExtnValue = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } else { decoded.ExtnValue = sequenceReader.ReadOctetString(); } sequenceReader.ThrowIfNotEmpty(); }
public static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out AttributeAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader collectionReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; decoded.AttrType = sequenceReader.ReadObjectIdentifier(); // Decode SEQUENCE OF for AttrValues { collectionReader = sequenceReader.ReadSetOf(); 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.AttrValues = tmpList.ToArray(); } sequenceReader.ThrowIfNotEmpty(); }
public Oid ReadObjectIdentifier(Asn1Tag expectedTag) { AsnValueReader valueReader = OpenValueReader(); Oid oid = valueReader.ReadObjectIdentifier(expectedTag); valueReader.MatchSlice(ref _data); return(oid); }
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out SpecifiedECDomain decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (!sequenceReader.TryReadUInt8(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } Medikit.Security.Cryptography.Asn1.FieldID.Decode(ref sequenceReader, rebind, out decoded.FieldID); Medikit.Security.Cryptography.Asn1.CurveAsn.Decode(ref sequenceReader, rebind, out decoded.Curve); if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan)) { decoded.Base = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } else { decoded.Base = sequenceReader.ReadOctetString(); } tmpSpan = sequenceReader.ReadIntegerBytes(); decoded.Order = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer)) { tmpSpan = sequenceReader.ReadIntegerBytes(); decoded.Cofactor = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.ObjectIdentifier)) { decoded.Hash = sequenceReader.ReadObjectIdentifier(); } sequenceReader.ThrowIfNotEmpty(); }
public static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out AlgorithmIdentifierAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; decoded.Algorithm = sequenceReader.ReadObjectIdentifier(); if (sequenceReader.HasData) { tmpSpan = sequenceReader.ReadEncodedValue(); decoded.Parameters = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } sequenceReader.ThrowIfNotEmpty(); }
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out ECDomainParameters decoded) { decoded = default; Asn1Tag tag = reader.PeekTag(); if (tag.HasSameClassAndValue(Asn1Tag.Sequence)) { Medikit.Security.Cryptography.Asn1.SpecifiedECDomain tmpSpecified; Medikit.Security.Cryptography.Asn1.SpecifiedECDomain.Decode(ref reader, rebind, out tmpSpecified); decoded.Specified = tmpSpecified; } else if (tag.HasSameClassAndValue(Asn1Tag.ObjectIdentifier)) { decoded.Named = reader.ReadObjectIdentifier(); } else { throw new CryptographicException(); } }