#ifndef __LIB3_H__
#define __LIB3_H__

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <openssl/aes.h>

#define BLOCKSIZE 16

char *challenge17_encrypt(int *length);
int cbc_padding_oracle(char *encrypted, int length);
int aes_ctr(char *in, int length_in, char *out, char *string_key, char *nonce);


#endif