EVP_rc4
EVP_add_cipher(EVP_rc4());
if (!EVP_DecryptInit_ex(cctx, EVP_rc4(), NULL, keybuf, NULL))
if (!EVP_DecryptInit_ex(cctx, EVP_rc4(), NULL, keybuf,
if (!EVP_EncryptInit_ex(cctx, EVP_rc4(), NULL, keybuf, NULL))
const EVP_CIPHER *EVP_rc4(void);
EVP_add_cipher(EVP_rc4());
*enc = EVP_rc4();