#define TEST_NAME "box7"

#include "cmptest.h"

static unsigned char alicesk[crypto_box_SECRETKEYBYTES];

static unsigned char alicepk[crypto_box_PUBLICKEYBYTES];

static unsigned char bobsk[crypto_box_SECRETKEYBYTES];

static unsigned char bobpk[crypto_box_PUBLICKEYBYTES];

static unsigned char n[crypto_box_NONCEBYTES];

int

main(void)

{

    unsigned char *m;

    unsigned char *c;

    unsigned char *m2;

    size_t         mlen;

    size_t         mlen_max = 1000;

    size_t         i;

    int            ret;

    m  = (unsigned char *) sodium_malloc(mlen_max);

    c  = (unsigned char *) sodium_malloc(mlen_max);

    m2 = (unsigned char *) sodium_malloc(mlen_max);

    memset(m, 0, crypto_box_ZEROBYTES);

    crypto_box_keypair(alicepk, alicesk);

    crypto_box_keypair(bobpk, bobsk);

    for (mlen = 0; mlen + crypto_box_ZEROBYTES <= mlen_max; mlen++) {

        randombytes_buf(n, crypto_box_NONCEBYTES);

        randombytes_buf(m + crypto_box_ZEROBYTES, mlen);

        ret = crypto_box(c, m, mlen + crypto_box_ZEROBYTES, n, bobpk, alicesk);

        assert(ret == 0);

        if (crypto_box_open(m2, c, mlen + crypto_box_ZEROBYTES, n, alicepk,

                            bobsk) == 0) {

            for (i = 0; i < mlen + crypto_box_ZEROBYTES; ++i) {

                if (m2[i] != m[i]) {

                    printf("bad decryption\n");

                    break;

                }

            }

        } else {

            printf("ciphertext fails verification\n");

        }

    }

    sodium_free(m);

    sodium_free(c);

    sodium_free(m2);

    return 0;

}