DES

The main function in main.c has a plaintext variable and a key variable.

int main(void)
{
    bits_64 plaintext = 0x0123456789ABCDEF;
    bits_64 key = 0x85E813540F0AB405;
    ...
}

Put the values you want in the variables above. However, the length must be 64 bits.

In the directory where Makefile is located,

$ make

Finally, let's run the executable file created from the Makefile.

$ ./DES

Output Example:

Cipher Text: E5A951F59B3160C0