box8.c

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    1 
    2 #define TEST_NAME "box8"
    3 #include "cmptest.h"
    4 
    5 static unsigned char alicesk[crypto_box_SECRETKEYBYTES];
    6 static unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
    7 static unsigned char bobsk[crypto_box_SECRETKEYBYTES];
    8 static unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
    9 static unsigned char n[crypto_box_NONCEBYTES];
   10 
   11 int
   12 main(void)
   13 {
   14     unsigned char *m;
   15     unsigned char *c;
   16     unsigned char *m2;
   17     size_t         mlen;
   18     size_t         mlen_max = 1000;
   19     size_t         i;
   20     int            faults;
   21     int            ret;
   22 
   23     m  = (unsigned char *) sodium_malloc(mlen_max);
   24     c  = (unsigned char *) sodium_malloc(mlen_max);
   25     m2 = (unsigned char *) sodium_malloc(mlen_max);
   26     crypto_box_keypair(alicepk, alicesk);
   27     crypto_box_keypair(bobpk, bobsk);
   28     for (mlen = 0; mlen + crypto_box_ZEROBYTES <= mlen_max; mlen++) {
   29         randombytes_buf(n, crypto_box_NONCEBYTES);
   30         randombytes_buf(m + crypto_box_ZEROBYTES, mlen);
   31         ret = crypto_box(c, m, mlen + crypto_box_ZEROBYTES, n, bobpk, alicesk);
   32         assert(ret == 0);
   33 #ifdef BROWSER_TESTS
   34         faults = 1;
   35 #else
   36         faults = 5;
   37 #endif
   38         while (faults > 0) {
   39             c[rand() % (mlen + crypto_box_ZEROBYTES)] = rand();
   40             if (crypto_box_open(m2, c, mlen + crypto_box_ZEROBYTES, n, alicepk,
   41                                 bobsk) == 0) {
   42                 for (i = 0; i < mlen + crypto_box_ZEROBYTES; ++i) {
   43                     if (m2[i] != m[i]) {
   44                         printf("forgery\n");
   45                         return 100;
   46                     }
   47                 }
   48             } else {
   49                 faults--;
   50             }
   51         }
   52     }
   53     sodium_free(m);
   54     sodium_free(c);
   55     sodium_free(m2);
   56 
   57     return 0;
   58 }

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FreeBSD/Linux Kernel Cross Reference sys/contrib/libsodium/test/default/box8.c

FreeBSD/Linux Kernel Cross Reference
sys/contrib/libsodium/test/default/box8.c