/* Encrypts several full blocks in CFB mode using 8byte IV */
void gost_enc_cfb(gost_ctx * ctx, const byte * iv, const byte * clear,
byte * cipher, int blocks);
/* Encrypts several full blocks in CFB mode using 8byte IV */
void gost_enc_cfb(gost_ctx * ctx, const byte * iv, const byte * clear,
byte * cipher, int blocks);