C++/CLI 函数我正在使用 C++/CLI 生成哈希键,并通过网络将数据和哈希键发送到用 Java 编码的其他应用程序。但是 Java 应用程序会生成不同的 HashKey。是否由于不同服务器上的不同应用程序导致哈希键不同?知道我哪里出错了吗?提前致谢。 char* EncodeData(char* ap_key, char* ap_sourceData) { char* lp_data_to_send = NULL; int key_len = strlen(ap_key); String^ lv_data = gcnew String(ap_sourceData);//Getting Data in System String array<Byte>^ lv_main_data = Encoding::UTF8->GetBytes(lv_data);//Encoding to UTF-8 array<Byte>^key = gcnew array< Byte >(key_len + 2); Marshal::Copy((IntPtr)ap_key, key, 0, key_len); //Copy key in System Array Byte // Initialize the keyed hash object. HMACSHA256^ myhmacsha256 = gcnew HMACSHA256(key); // Compute the hash of the input file. array<Byte>^hashValue = myhmacsha256->ComputeHash(lv_main_data); String^ lv_hex_convert = BitConverter::ToString(hashValue)->Replace("-",""); //Converted to Hexadecimal and replacing '-' with "" Console::WriteLine(lv_hex_convert);//Converted Hexadecimal Hashkey //Converting to Char* lp_data_to_send = (char*)(void*)System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(lv_hex_convert);//Converting again to char* to be send to Calling Function myhmacsha256->Clear(); //myhmacsha256 clear Instance return lp_data_to_send;//Return Char* }int main() { //Secret Key shared by C++/CLi application and Java Application String ^ lv_key_g = " My Secret Key"; char lv_sourceData[] = { "My data" }; char lv_destinationData[512] = { "" }; char* lp_ret = NULL; array<Byte>^secretkey = gcnew array<Byte>(65); //Declaring Array //Converting to UTF-8 secretkey = Encoding::UTF8->GetBytes(lv_key_g); /*Converting to char* */
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青春有我
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return lp_data_to_send;//Return Char*
将返回一个悬空指针,您可能应该返回一个引用计数的字符串lv_hex_convert
。另一个可疑的事情是密钥比所需的长 2 个字节。
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