A simple way to demonstrate common reversing tricks using C code: 1.XOR cipher execution simple repeating-key XOR extremely common in obfuscation 2.Known-plaintext attack if you know part of the plaintext, you can recover the key 3.Key length recovery detect repeating patterns in the keystream #include #include #include #include static void xmem(uint8_t *b, size_t n, const uint8_t *k,