internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out ECPrivateKey decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader explicitReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (!sequenceReader.TryReadUInt8(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan)) { decoded.PrivateKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } else { decoded.PrivateKey = sequenceReader.ReadOctetString(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0))) { explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0)); System.Security.Cryptography.Asn1.ECDomainParameters tmpParameters; System.Security.Cryptography.Asn1.ECDomainParameters.Decode(ref explicitReader, rebind, out tmpParameters); decoded.Parameters = tmpParameters; explicitReader.ThrowIfNotEmpty(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1))) { explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1)); if (explicitReader.TryReadPrimitiveBitStringValue(out _, out tmpSpan)) { decoded.PublicKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } else { decoded.PublicKey = explicitReader.ReadBitString(out _); } explicitReader.ThrowIfNotEmpty(); } sequenceReader.ThrowIfNotEmpty(); }
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out PrivateKeyInfoAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); AsnValueReader collectionReader; ReadOnlySpan <byte> rebindSpan = rebind.Span; int offset; ReadOnlySpan <byte> tmpSpan; if (!sequenceReader.TryReadUInt8(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref sequenceReader, rebind, out decoded.PrivateKeyAlgorithm); if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan)) { decoded.PrivateKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray(); } else { decoded.PrivateKey = sequenceReader.ReadOctetString(); } if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0))) { // Decode SEQUENCE OF for Attributes { collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 0)); var tmpList = new List <System.Security.Cryptography.Asn1.AttributeAsn>(); System.Security.Cryptography.Asn1.AttributeAsn tmpItem; while (collectionReader.HasData) { System.Security.Cryptography.Asn1.AttributeAsn.Decode(ref collectionReader, rebind, out tmpItem); tmpList.Add(tmpItem); } decoded.Attributes = tmpList.ToArray(); } } sequenceReader.ThrowIfNotEmpty(); }
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(); } System.Security.Cryptography.Asn1.FieldID.Decode(ref sequenceReader, rebind, out decoded.FieldID); System.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(); }
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out RSAPrivateKeyAsn decoded) { decoded = default; AsnValueReader sequenceReader = reader.ReadSequence(expectedTag); if (!sequenceReader.TryReadUInt8(out decoded.Version)) { sequenceReader.ThrowIfNotEmpty(); } decoded.Modulus = sequenceReader.ReadInteger(); decoded.PublicExponent = sequenceReader.ReadInteger(); decoded.PrivateExponent = sequenceReader.ReadInteger(); decoded.Prime1 = sequenceReader.ReadInteger(); decoded.Prime2 = sequenceReader.ReadInteger(); decoded.Exponent1 = sequenceReader.ReadInteger(); decoded.Exponent2 = sequenceReader.ReadInteger(); decoded.Coefficient = sequenceReader.ReadInteger(); sequenceReader.ThrowIfNotEmpty(); }