public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
        {
            var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;

            Init();

            var context   = new Asn1BerDecodeContext(buffer, elemLength);
            var parsedLen = new IntHolder();

            if (!context.MatchElemTag(0, 0, OctetStringTypeCode, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            _iv = new Gost2814789Iv();
            _iv.Decode(buffer, true, parsedLen.Value);

            if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            _encryptionParamSet = new Gost2814789ParamSet();
            _encryptionParamSet.Decode(buffer, true, parsedLen.Value);
        }
        public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
        {
            var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;

            Init();

            var context = new Asn1BerDecodeContext(buffer, elemLength);
            var parsedLen = new IntHolder();

            if (!context.MatchElemTag(0, 0, 6, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            _publicKeyParamSet = new Asn1ObjectIdentifier();
            _publicKeyParamSet.Decode(buffer, true, parsedLen.Value);

            if (!context.MatchElemTag(0, 0, 6, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            _digestParamSet = new Asn1ObjectIdentifier();
            _digestParamSet.Decode(buffer, true, parsedLen.Value);

            if (context.MatchElemTag(0, 0, 6, parsedLen, false))
            {
                _encryptionParamSet = new Gost2814789ParamSet();
                _encryptionParamSet.Decode(buffer, true, parsedLen.Value);
            }
        }
        public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
        {
            var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;

            Init();

            var context = new Asn1BerDecodeContext(buffer, elemLength);
            var parsedLen = new IntHolder();

            if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            EncryptionParamSet = new Gost2814789ParamSet();
            EncryptionParamSet.Decode(buffer, true, parsedLen.Value);

            if (context.MatchElemTag(0, 0, OctetStringTypeCode, parsedLen, false))
            {
                Ukm = new Asn1OctetString();
                Ukm.Decode(buffer, true, parsedLen.Value);

                if (Ukm.Length != 8)
                {
                    throw ExceptionUtility.CryptographicException(Resources.Asn1ConsVioException, "Ukm.Length", Ukm.Length);
                }
            }
        }
Esempio n. 4
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        public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
        {
            var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;

            Init();

            var context   = new Asn1BerDecodeContext(buffer, elemLength);
            var parsedLen = new IntHolder();

            if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            EncryptionParamSet = new Gost2814789ParamSet();
            EncryptionParamSet.Decode(buffer, true, parsedLen.Value);

            if (!context.Expired())
            {
                if (buffer.PeekTag().Equals(0, 0, ObjectIdentifierTypeCode))
                {
                    throw ExceptionUtility.CryptographicException(Resources.Asn1SeqOrderException);
                }

                _extElem1 = new Asn1OpenExt();

                while (!context.Expired())
                {
                    _extElem1.DecodeComponent(buffer);
                }
            }
            else
            {
                _extElem1 = null;
            }
        }
        public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
        {
            var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;

            Init();

            var context = new Asn1BerDecodeContext(buffer, elemLength);
            var parsedLen = new IntHolder();

            if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
            {
                throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
            }

            EncryptionParamSet = new Gost2814789ParamSet();
            EncryptionParamSet.Decode(buffer, true, parsedLen.Value);

            if (!context.Expired())
            {
                if (buffer.PeekTag().Equals(0, 0, ObjectIdentifierTypeCode))
                {
                    throw ExceptionUtility.CryptographicException(Resources.Asn1SeqOrderException);
                }

                _extElem1 = new Asn1OpenExt();

                while (!context.Expired())
                {
                    _extElem1.DecodeComponent(buffer);
                }
            }
            else
            {
                _extElem1 = null;
            }
        }
 private void Init()
 {
     _iv = null;
     _encryptionParamSet = null;
 }
Esempio n. 7
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        private void Init()
        {
            EncryptionParamSet = null;

            _extElem1 = null;
        }
 private void Init()
 {
     _publicKeyParamSet = null;
     _digestParamSet = null;
     _encryptionParamSet = null;
 }
        private void Init()
        {
            EncryptionParamSet = null;

            _extElem1 = null;
        }
 private void Init()
 {
     _iv = null;
     _encryptionParamSet = null;
 }
 private void Init()
 {
     EncryptionParamSet = null;
     Ukm = null;
 }
 private void Init()
 {
     EncryptionParamSet = null;
     EphemeralPublicKey = null;
     Ukm = null;
 }
 private void Init()
 {
     DigestParamSet = null;
     PublicKeyParamSet = null;
     EncryptionParamSet = null;
 }