git.ozlabs.org Git - ccan/blob - ccan/crypto/hkdf_sha256/test/api-rfc5869.c

   1 /* From RFC5869 Appendix A
   2  *
   3  * https://tools.ietf.org/html/rfc5869
   4  */
   5 #include <ccan/crypto/hkdf_sha256/hkdf_sha256.h>
   6 #include <ccan/tap/tap.h>
   7 #include <ccan/str/hex/hex.h>
   8 #include <string.h>
   9 #include <assert.h>
  10
  11 struct test {
  12         const char *ikm, *salt, *info, *okm;
  13 };
  14
  15 static struct test tests[] = { {
  16         /* Test Case 1
  17            Basic test case with SHA-256
  18         */
  19         "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b", /* (22 octets) */
  20         "000102030405060708090a0b0c", /* (13 octets) */
  21         "f0f1f2f3f4f5f6f7f8f9", /* (10 octets) */
  22         "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865", /* (42 octets) */
  23         },
  24         {
  25         /* Test Case 2
  26          *
  27          * Test with SHA-256 and longer inputs/outputs */
  28         "000102030405060708090a0b0c0d0e0f"
  29         "101112131415161718191a1b1c1d1e1f"
  30         "202122232425262728292a2b2c2d2e2f"
  31         "303132333435363738393a3b3c3d3e3f"
  32         "404142434445464748494a4b4c4d4e4f", /* (80 octets) */
  33         "606162636465666768696a6b6c6d6e6f"
  34         "707172737475767778797a7b7c7d7e7f"
  35         "808182838485868788898a8b8c8d8e8f"
  36         "909192939495969798999a9b9c9d9e9f"
  37         "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf", /* (80 octets )*/
  38         "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
  39         "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
  40         "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
  41         "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
  42         "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff", /* (80 octets) */
  43         "b11e398dc80327a1c8e7f78c596a4934"
  44         "4f012eda2d4efad8a050cc4c19afa97c"
  45         "59045a99cac7827271cb41c65e590e09"
  46         "da3275600c2f09b8367793a9aca3db71"
  47         "cc30c58179ec3e87c14c01d5c1f3434f"
  48         "1d87" /* (82 octets) */
  49         },
  50         {
  51         /*  Test Case 3
  52          *
  53          * Test with SHA-256 and zero-length salt/info
  54          */
  55         "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b", /* (22 octets) */
  56         "", /* (0 octets) */
  57         "", /* (0 octets) */
  58         "8da4e775a563c18f715f802a063c5a31"
  59         "b8a11f5c5ee1879ec3454e5f3c738d2d"
  60         "9d201395faa4b61a96c8" /* (42 octets) */
  61         }
  62 };
  63
  64 static void *fromhex(const char *str, size_t *len)
  65 {
  66         void *p;
  67
  68         *len = hex_data_size(strlen(str));
  69         p = malloc(*len);
  70         if (!hex_decode(str, strlen(str), p, *len))
  71                 abort();
  72         return p;
  73 }
  74
  75 int main(void)
  76 {
  77         size_t i;
  78
  79         plan_tests(sizeof(tests) / sizeof(tests[0]));
  80
  81         for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
  82                 size_t ksize, ssize, isize, okmsize;
  83                 void *k, *s, *info, *expect, *okm;
  84
  85                 k = fromhex(tests[i].ikm, &ksize);
  86                 s = fromhex(tests[i].salt, &ssize);
  87                 info = fromhex(tests[i].info, &isize);
  88                 expect = fromhex(tests[i].okm, &okmsize);
  89                 okm = malloc(okmsize);
  90                 hkdf_sha256(okm, okmsize, s, ssize, k, ksize, info, isize);
  91                 ok1(memcmp(okm, expect, okmsize) == 0);
  92
  93                 free(k);
  94                 free(s);
  95                 free(info);
  96                 free(expect);
  97                 free(okm);
  98         }
  99
 100         return exit_status();
 101 }