Add new tests for the crypto_box_*() precomputed interface

test/default/box_easy2.c

@@ -14,6 +14,8 @@ int main(void)
     unsigned char *bobsk;
     unsigned char *mac;
     unsigned char *nonce;
+    unsigned char *k1;
+    unsigned char *k2;
     size_t         mlen;
     size_t         i;
 
@@ -23,6 +25,8 @@ int main(void)
     bobsk = (unsigned char *) sodium_malloc(crypto_box_SECRETKEYBYTES);
     mac = (unsigned char *) sodium_malloc(crypto_box_MACBYTES);
     nonce = (unsigned char *) sodium_malloc(crypto_box_NONCEBYTES);
+    k1 = (unsigned char *) sodium_malloc(crypto_box_BEFORENMBYTES);
+    k2 = (unsigned char *) sodium_malloc(crypto_box_BEFORENMBYTES);
     crypto_box_keypair(alicepk, alicesk);
     crypto_box_keypair(bobpk, bobsk);
     mlen = (size_t) randombytes_uniform((uint32_t)sizeof m);
@@ -55,17 +59,38 @@ int main(void)
         printf("crypto_box_open_easy() failed\n");
     }
 
+    crypto_box_beforenm(k1, alicepk, bobsk);
+    crypto_box_beforenm(k2, bobpk, alicesk);
+
+    memset(m2, 0, sizeof m2);
+    crypto_box_easy_afternm(c, m, (unsigned long long) mlen, nonce, k1);
+    crypto_box_open_easy_afternm(m2, c,
+                                 (unsigned long long) mlen + crypto_box_MACBYTES,
+                                 nonce, k2);
+    printf("%d\n", memcmp(m, m2, mlen));
+
+    memset(m2, 0, sizeof m2);
     crypto_box_detached(c, mac, m, (unsigned long long) mlen,
-                        nonce, bobsk, alicepk);
+                        nonce, alicepk, bobsk);
     crypto_box_open_detached(m2, c, mac, (unsigned long long) mlen,
-                             nonce, alicepk, bobsk);
+                             nonce, bobpk, alicesk);
     printf("%d\n", memcmp(m, m2, mlen));
+
+    memset(m2, 0, sizeof m2);
+    crypto_box_detached_afternm(c, mac, m, (unsigned long long) mlen,
+                                nonce, k1);
+    crypto_box_open_detached_afternm(m2, c, mac, (unsigned long long) mlen,
+                                     nonce, k2);
+    printf("%d\n", memcmp(m, m2, mlen));
+
     sodium_free(alicepk);
     sodium_free(alicesk);
     sodium_free(bobpk);
     sodium_free(bobsk);
     sodium_free(mac);
     sodium_free(nonce);
+    sodium_free(k1);
+    sodium_free(k2);
     printf("OK\n");
 
     return 0;

test/default/box_easy2.exp

@@ -2,4 +2,6 @@
 0
 0
 0
+0
+0
 OK