EVP_CIPH_STREAM_CIPHER
EVP_CIPH_STREAM_CIPHER | EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_FLAG_AEAD_CIPHER,
case EVP_CIPH_STREAM_CIPHER:
{ NID_rc4, 1, 16, 0, EVP_CIPH_STREAM_CIPHER, CRYPTO_ARC4 },
&& EVP_CIPHER_get_mode(cdat->cipher) == EVP_CIPH_STREAM_CIPHER)