- RC4_set_key(&ct->rc4c.send_key, RC4_KEY_LEN,
- crypt_buf + CHALLENGE_SIZE);
- RC4_set_key(&ct->rc4c.recv_key, RC4_KEY_LEN,
- crypt_buf + CHALLENGE_SIZE + RC4_KEY_LEN);
+ ct->rc4c.send = stream_cipher_new(crypt_buf + CHALLENGE_SIZE,
+ RC4_KEY_LEN);
+ ct->rc4c.recv = stream_cipher_new(crypt_buf + CHALLENGE_SIZE
+ + RC4_KEY_LEN, RC4_KEY_LEN);