示例#1
0
        internal static void Decode(AsnReader reader, out Pbkdf2SaltChoice decoded)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            decoded = default;
            Asn1Tag tag = reader.PeekTag();

            if (tag.HasSameClassAndValue(Asn1Tag.PrimitiveOctetString))
            {
                if (reader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpSpecified))
                {
                    decoded.Specified = tmpSpecified;
                }
                else
                {
                    decoded.Specified = reader.ReadOctetString();
                }
            }
            else if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
            {
                System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn tmpOtherSource;
                System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(reader, out tmpOtherSource);
                decoded.OtherSource = tmpOtherSource;
            }
            else
            {
                throw new CryptographicException();
            }
        }
示例#2
0
        private static void DecodeCore(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out Pbkdf2SaltChoice decoded)
        {
            decoded = default;
            Asn1Tag             tag        = reader.PeekTag();
            ReadOnlySpan <byte> rebindSpan = rebind.Span;
            int offset;
            ReadOnlySpan <byte> tmpSpan;

            if (tag.HasSameClassAndValue(Asn1Tag.PrimitiveOctetString))
            {
                if (reader.TryReadPrimitiveOctetString(out tmpSpan))
                {
                    decoded.Specified = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
                }
                else
                {
                    decoded.Specified = reader.ReadOctetString();
                }
            }
            else if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
            {
                System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn tmpOtherSource;
                System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref reader, rebind, out tmpOtherSource);
                decoded.OtherSource = tmpOtherSource;
            }
            else
            {
                throw new CryptographicException();
            }
        }
示例#3
0
 internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out Pbkdf2SaltChoice decoded)
 {
     try
     {
         DecodeCore(ref reader, rebind, out decoded);
     }
     catch (AsnContentException e)
     {
         throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
     }
 }