void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const AES_KEY *key,
unsigned char *ivec, int *num, const int enc);
-void AES_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,
- const int nbits,const AES_KEY *key,
- unsigned char *ivec,const int enc);
void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
size_t length, const AES_KEY *key,
unsigned char *ivec, int *num);