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);
}
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);
}
}