source: svn/trunk/newcon3bcm2_21bu/dta/src/bootloader/aes/main.c

// AES usage example
// compile as: gcc main.c aes.h aes.c

#include <stdlib.h>
#include <stdio.h>
#include "aes.h"

int main(int argc, char *argv[])
{
        unsigned char key[KEY_128] = "uber strong key!";
        unsigned char ptext[16] = "Attack at dawn!";
        unsigned char ctext[16];
        unsigned char decptext[16];
        aes_ctx_t *ctx;
        int i;

        init_aes();
        ctx = aes_alloc_ctx(key, sizeof(key));
        if(!ctx) {
                perror("aes_alloc_ctx");
                return EXIT_FAILURE;
        }
        aes_encrypt(ctx, ptext, ctext);
        aes_decrypt(ctx, ctext, decptext);
        i = 16;
        printf("plaintext: %s\nciphertext: ", ptext);
        for(i = 0; i < 16; i++)
                printf("%02x", ctext[i]);
        printf("\ndecrypted ciphertext: %s\n", decptext);

        aes_free_ctx(ctx);
        return EXIT_SUCCESS;
}