public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength) { var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength; EncryptionParamSet = null; Ukm = 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.MatchElemTag(0, 0, OctetStringTypeCode, parsedLen, false)) { Ukm = new Asn1OctetString(); Ukm.Decode(buffer, true, parsedLen.Value); if (Ukm.Length != 8) { throw ExceptionUtility.CryptographicException(Resources.Asn1ConsVioException, nameof(Ukm.Length), Ukm.Length); } } }
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; } }