-EVP_CIPHER *EVP_rc5_32_12_16_cbc(void)
- {
- return(&rc5_32_12_16_cbc_cipher);
- }
-#endif
-
-static int r_32_12_16_init_key(EVP_CIPHER_CTX *ctx, unsigned char *key,
- unsigned char *iv, int enc)
+#define data(ctx) EVP_C_DATA(EVP_RC5_KEY,ctx)
+
+IMPLEMENT_BLOCK_CIPHER(rc5_32_12_16, ks, RC5_32, EVP_RC5_KEY, NID_rc5,
+ 8, RC5_32_KEY_LENGTH, 8, 64,
+ EVP_CIPH_VARIABLE_LENGTH | EVP_CIPH_CTRL_INIT,
+ r_32_12_16_init_key, NULL,
+ NULL, NULL, rc5_ctrl)
+
+static int rc5_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)