C++ (Cpp) DES::decrypt示例

示例#1

文件： application.cpp 项目： fcgdam/DES_Library

void desTest()
{
  byte out[8];
  byte in[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
  byte key[] = { 0x3b, 0x38, 0x98, 0x37, 0x15, 0x20, 0xf7, 0x5e };
  
  Serial.println();
  Serial.println("========= DES test ==========");
  
  //encrypt
  Serial.print("Encrypt...");
  unsigned long time = micros();
  des.encrypt(out, in, key);
  time = micros() - time;
  Serial.print("done. (");
  Serial.print(time);
  Serial.println(" micros)");
  printArray(out);
  
  //decrypt
  for (int i = 0; i < 8; i++)
  {
    in[i] = out[i];
  }
  Serial.print("Decrypt...");
  time = micros();
  des.decrypt(out, in, key);
  time = micros() - time;
  Serial.print("done. (");
  Serial.print(time);
  Serial.println(" micros)");
  printArray(out);
}

示例#2

文件： ssl.cpp 项目： ewduong/ScheduleIt

void DES_ecb_encrypt(DES_cblock* input, DES_cblock* output,
                     DES_key_schedule* key, int enc)
{
    DES  des;

    if (enc) {
        des.set_encryptKey(*key, 0);
        des.encrypt(*output, *input, DES_BLOCK);
    }
    else {
        des.set_decryptKey(*key, 0);
        des.decrypt(*output, *input, DES_BLOCK);
    }
}