The following AES APIs are new in OpenSSL 0.9.7e and in HP SSL Version 1.3.
void AES_cfb1_encrypt(const unsigned char *in, unsigned char *out, const unsigned long length, const AES_KEY *key, unsigned char *ivec, int *num, const int enc); void AES_cfb8_encrypt(const unsigned char *in, unsigned char *out, const unsigned long 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);