uint8_t in[]  = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a };
struct AES_ctx ctx;

AES_init_ctx(&ctx, key);
AES_ECB_encrypt(&ctx, in);

printf("ECB encrypt: ");

if (0 == memcmp((char*) out, (char*) in, 16))
{
    printf("SUCCESS!n");
}
else
{
    printf("FAILURE!n");
}