public override void Decode (Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength) { int llen = (explicitTagging) ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength; Init(); // decode SEQUENCE Asn1BerDecodeContext context = new Asn1BerDecodeContext(buffer, llen); IntHolder elemLen = new IntHolder(); // decode encryptionParamSet if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.PRIM, 6, elemLen, false)) { encryptionParamSet = new Gost28147_89_ParamSet(); encryptionParamSet.Decode(buffer, true, elemLen.Value); } else { throw new Exception("Asn1MissingRequiredException"); } // decode extElem1 if (!context.Expired()) { Asn1Tag _tag = buffer.PeekTag(); if (_tag.Equals(Asn1Tag.Universal, Asn1Tag.PRIM, 6)) { throw new Exception("Asn1SeqOrderException"); } else { 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; Algorithm = null; Parameters = null; 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); } Algorithm = new Asn1ObjectIdentifier(); Algorithm.Decode(buffer, true, parsedLen.Value); if (!context.Expired()) { Parameters = new Asn1OpenType(); Parameters.Decode(buffer, true, 0); } CheckAlg(true); }
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength) { var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength; EncryptionParamSet = null; ExtElement = null; 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 Gost_28147_89_ParamSet(); EncryptionParamSet.Decode(buffer, true, parsedLen.Value); if (!context.Expired()) { if (buffer.PeekTag().Equals(0, 0, ObjectIdentifierTypeCode)) { throw ExceptionUtility.CryptographicException(Resources.Asn1SeqOrderException); } ExtElement = new Asn1OpenExt(); while (!context.Expired()) { ExtElement.DecodeComponent(buffer); } } else { ExtElement = null; } }
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength) { var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength; PublicKeyParamSet = null; DigestParamSet = null; EncryptionParamSet = null; var context = new Asn1BerDecodeContext(buffer, elemLength); var parsedLen = new IntHolder(); if (context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false)) { PublicKeyParamSet = new Asn1ObjectIdentifier(); PublicKeyParamSet.Decode(buffer, true, parsedLen.Value); } else { throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount); } if (context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false)) { DigestParamSet = new Asn1ObjectIdentifier(); DigestParamSet.Decode(buffer, true, parsedLen.Value); } if (context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false)) { EncryptionParamSet = new Asn1ObjectIdentifier(); EncryptionParamSet.Decode(buffer, true, parsedLen.Value); } if (!context.Expired()) { var lastTag = buffer.PeekTag(); if (lastTag.Equals(0, 0, ObjectIdentifierTypeCode)) { throw ExceptionUtility.CryptographicException(Resources.Asn1SeqOrderException); } } }
public override void Decode (Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength) { int llen = (explicitTagging) ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength; Init(); // decode SEQUENCE Asn1BerDecodeContext context = new Asn1BerDecodeContext(buffer, llen); IntHolder elemLen = new IntHolder(); // decode algorithm if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.PRIM, 6, elemLen, false)) { algorithm = new Asn1ObjectIdentifier(); algorithm.Decode(buffer, true, elemLen.Value); } else { throw new Exception("Asn1MissingRequiredException (buffer)"); } // decode parameters if (!context.Expired()) { parameters = new Asn1OpenType(); parameters.Decode(buffer, true, 0); } checkTC(true); }