vendor/libsodium/test/default/auth.c in rbnacl-libsodium-1.0.13 vs vendor/libsodium/test/default/auth.c in rbnacl-libsodium-1.0.15

@@ -17,10 +17,11 @@
 
 int
 main(void)
 {
     crypto_auth_hmacsha512_state st;
+    crypto_auth_hmacsha256_state st256;
     size_t                       i;
 
     assert(crypto_auth_hmacsha512_statebytes() ==
            sizeof(crypto_auth_hmacsha512_state));
     crypto_auth(a, c, sizeof c - 1U, key);
@@ -44,9 +45,21 @@
 
     crypto_auth_hmacsha512_init(&st, key2, sizeof key2);
     crypto_auth_hmacsha512_update(&st, c, 1U);
     crypto_auth_hmacsha512_update(&st, c, sizeof c - 2U);
     crypto_auth_hmacsha512_final(&st, a2);
+    for (i = 0; i < sizeof a2; ++i) {
+        printf(",0x%02x", (unsigned int) a2[i]);
+        if (i % 8 == 7)
+            printf("\n");
+    }
+
+    memset(a2, 0, sizeof a2);
+    crypto_auth_hmacsha256_init(&st256, key2, sizeof key2);
+    crypto_auth_hmacsha256_update(&st256, NULL, 0U);
+    crypto_auth_hmacsha256_update(&st256, c, 1U);
+    crypto_auth_hmacsha256_update(&st256, c, sizeof c - 2U);
+    crypto_auth_hmacsha256_final(&st256, a2);
     for (i = 0; i < sizeof a2; ++i) {
         printf(",0x%02x", (unsigned int) a2[i]);
         if (i % 8 == 7)
             printf("\n");
     }