Exemplo n.º 1
0
        private static void DecodeCore(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();
        }
Exemplo n.º 2
0
        private static void DecodeCore(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.TryReadInt32(out decoded.Version))
            {
                sequenceReader.ThrowIfNotEmpty();
            }

            System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref sequenceReader, rebind, out decoded.PrivateKeyAlgorithm);

            if (sequenceReader.TryReadPrimitiveOctetString(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();
        }