Beispiel #1
0
        internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out DirectoryStringAsn decoded)
        {
            decoded = default;
            Asn1Tag             tag        = reader.PeekTag();
            ReadOnlySpan <byte> rebindSpan = rebind.Span;
            int offset;
            ReadOnlySpan <byte> tmpSpan;

            if (tag.HasSameClassAndValue(new Asn1Tag(UniversalTagNumber.T61String)))
            {
                decoded.TeletexString = reader.ReadCharacterString(UniversalTagNumber.T61String);
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(UniversalTagNumber.PrintableString)))
            {
                decoded.PrintableString = reader.ReadCharacterString(UniversalTagNumber.PrintableString);
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag((UniversalTagNumber)28)))
            {
                tmpSpan = reader.ReadEncodedValue();
                decoded.UniversalString = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(UniversalTagNumber.UTF8String)))
            {
                decoded.Utf8String = reader.ReadCharacterString(UniversalTagNumber.UTF8String);
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(UniversalTagNumber.BMPString)))
            {
                decoded.BmpString = reader.ReadCharacterString(UniversalTagNumber.BMPString);
            }
            else
            {
                throw new CryptographicException();
            }
        }
        public static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out GeneralNameAsn decoded)
        {
            decoded = default;
            Asn1Tag             tag = reader.PeekTag();
            AsnValueReader      explicitReader;
            ReadOnlySpan <byte> rebindSpan = rebind.Span;
            int offset;
            ReadOnlySpan <byte> tmpSpan;

            if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
            {
                Medikit.Security.Cryptography.Asn1.OtherNameAsn tmpOtherName;
                Medikit.Security.Cryptography.Asn1.OtherNameAsn.Decode(ref reader, new Asn1Tag(TagClass.ContextSpecific, 0), rebind, out tmpOtherName);
                decoded.OtherName = tmpOtherName;
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
            {
                decoded.Rfc822Name = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 1), UniversalTagNumber.IA5String);
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
            {
                decoded.DnsName = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 2), UniversalTagNumber.IA5String);
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
            {
                tmpSpan             = reader.ReadEncodedValue();
                decoded.X400Address = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 4)))
            {
                explicitReader        = reader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
                tmpSpan               = explicitReader.ReadEncodedValue();
                decoded.DirectoryName = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
                explicitReader.ThrowIfNotEmpty();
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 5)))
            {
                Medikit.Security.Cryptography.Asn1.EdiPartyNameAsn tmpEdiPartyName;
                Medikit.Security.Cryptography.Asn1.EdiPartyNameAsn.Decode(ref reader, new Asn1Tag(TagClass.ContextSpecific, 5), rebind, out tmpEdiPartyName);
                decoded.EdiPartyName = tmpEdiPartyName;
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 6)))
            {
                decoded.Uri = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 6), UniversalTagNumber.IA5String);
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 7)))
            {
                if (reader.TryReadPrimitiveOctetStringBytes(new Asn1Tag(TagClass.ContextSpecific, 7), out tmpSpan))
                {
                    decoded.IPAddress = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
                }
                else
                {
                    decoded.IPAddress = reader.ReadOctetString(new Asn1Tag(TagClass.ContextSpecific, 7));
                }
            }
            else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 8)))
            {
                decoded.RegisteredId = reader.ReadObjectIdentifierAsString(new Asn1Tag(TagClass.ContextSpecific, 8));
            }
            else
            {
                throw new CryptographicException();
            }
        }