kdf.c

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    1 
    2 #define TEST_NAME "kdf"
    3 #include "cmptest.h"
    4 
    5 static void
    6 tv_kdf(void)
    7 {
    8     unsigned char *master_key;
    9     unsigned char *subkey;
   10     char          *context;
   11     char           hex[crypto_kdf_BYTES_MAX * 2 + 1];
   12     uint64_t       i;
   13     int            ret;
   14 
   15     context = (char *) sodium_malloc(crypto_kdf_CONTEXTBYTES);
   16     master_key = (unsigned char *) sodium_malloc(crypto_kdf_KEYBYTES);
   17 
   18     memcpy(context, "KDF test", strlen("KDF test"));
   19     for (i = 0; i < crypto_kdf_KEYBYTES; i++) {
   20         master_key[i] = i;
   21     }
   22     subkey = (unsigned char *) sodium_malloc(crypto_kdf_BYTES_MAX);
   23     for (i = 0; i < 10; i++) {
   24         ret = crypto_kdf_derive_from_key(subkey, crypto_kdf_BYTES_MAX,
   25                                          i, context, master_key);
   26         assert(ret == 0);
   27         sodium_bin2hex(hex, sizeof hex, subkey, crypto_kdf_BYTES_MAX);
   28         printf("%s\n", hex);
   29     }
   30     sodium_free(subkey);
   31 
   32     for (i = 0; i < crypto_kdf_BYTES_MAX + 2; i++) {
   33         subkey = (unsigned char *) sodium_malloc(crypto_kdf_BYTES_MAX);
   34         if (crypto_kdf_derive_from_key(subkey, (size_t) i,
   35                                        i, context, master_key) == 0) {
   36             sodium_bin2hex(hex, sizeof hex, subkey, (size_t) i);
   37             printf("%s\n", hex);
   38         } else {
   39             printf("Failure -- probably expected for output length=%u\n",
   40                    (unsigned int) i);
   41         }
   42         sodium_free(subkey);
   43     }
   44 
   45     sodium_free(master_key);
   46     sodium_free(context);
   47 
   48     assert(strcmp(crypto_kdf_primitive(), crypto_kdf_PRIMITIVE) == 0);
   49     assert(crypto_kdf_BYTES_MAX > 0);
   50     assert(crypto_kdf_BYTES_MIN <= crypto_kdf_BYTES_MAX);
   51     assert(crypto_kdf_bytes_min() == crypto_kdf_BYTES_MIN);
   52     assert(crypto_kdf_bytes_max() == crypto_kdf_BYTES_MAX);
   53     assert(crypto_kdf_CONTEXTBYTES > 0);
   54     assert(crypto_kdf_contextbytes() == crypto_kdf_CONTEXTBYTES);
   55     assert(crypto_kdf_KEYBYTES >= 16);
   56     assert(crypto_kdf_keybytes() == crypto_kdf_KEYBYTES);
   57     assert(crypto_kdf_bytes_min() == crypto_kdf_blake2b_bytes_min());
   58     assert(crypto_kdf_bytes_max() == crypto_kdf_blake2b_bytes_max());
   59     assert(crypto_kdf_contextbytes() == crypto_kdf_blake2b_contextbytes());
   60     assert(crypto_kdf_keybytes() == crypto_kdf_blake2b_keybytes());
   61 
   62     printf("tv_kdf: ok\n");
   63 }
   64 
   65 int
   66 main(void)
   67 {
   68     tv_kdf();
   69 
   70     return 0;
   71 }

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

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