SeedKey_grew79f_GenerateKeyEx_seedkey相加_SeedKey_CANOE

////////////////////////////////////////////////////////////////////////// /// Seed & Key DLL with extended interface and options argument /// This is an example implementation for CANoe demo configuration "UDSsim" ////////////////////////////////////////////////////////////////////////// #include <windows.h> #include "GenerateKeyExOpt.h" KEYGENALGO_API VKeyGenResultExOpt GenerateKeyExOpt( const unsigned char* ipSeedArray, // Array for the seed [in] unsigned int iSeedArraySize, // Length of the array for the seed [in] const unsigned int iSecurityLevel, // Security level [in] const char* ipVariant, // Name of the active variant [in] const char* ipOptions, // Optional parameter which might be used for OEM specific information [in] unsigned char* iopKeyArray, // Array for the key [in, out] unsigned int iMaxKeyArraySize, // Maximum length of the array for the key [in] unsigned int& oActualKeyArraySize) // Length of the key [out] { // Check the input arguments if( iSecurityLevel == 0 || iSecurityLevel > 10) return KGREO_SecurityLevelInvalid; if( iMaxKeyArraySize < iSeedArraySize || 4 > iSeedArraySize) return KGREO_BufferToSmall; if( !ipSeedArray || !iopKeyArray || !ipOptions || strlen( ipOptions) < iSeedArraySize) return KGREO_UnspecifiedError; // Copy the input bytes to the output bytes memcpy( iopKeyArray, ipSeedArray, iSeedArraySize); // As an example each byte in the options array will be added to each byte of the seed array securityLevel times. for( unsigned int l = 0; l < iSecurityLevel; ++l) { for( unsigned int i = 0; i < iSeedArraySize; ++i) iopKeyArray[i] += ipOptions[i]; } oActualKeyArraySize = iSeedArraySize; return KGREO_Ok; }