1 files changed, 58 insertions, 0 deletions
diff --git a/sys/contrib/libsodium/test/default/box8.c b/sys/contrib/libsodium/test/default/box8.c
new file mode 100644
index 000000000000..4d27f335f3a2
--- /dev/null
+++ b/sys/contrib/libsodium/test/default/box8.c
@@ -0,0 +1,58 @@
+
+#define TEST_NAME "box8"
+#include "cmptest.h"
+
+static unsigned char alicesk[crypto_box_SECRETKEYBYTES];
+static unsigned char alicepk[crypto_box_PUBLICKEYBYTES];
+static unsigned char bobsk[crypto_box_SECRETKEYBYTES];
+static unsigned char bobpk[crypto_box_PUBLICKEYBYTES];
+static unsigned char n[crypto_box_NONCEBYTES];
+
+int
+main(void)
+{
+    unsigned char *m;
+    unsigned char *c;
+    unsigned char *m2;
+    size_t         mlen;
+    size_t         mlen_max = 1000;
+    size_t         i;
+    int            faults;
+    int            ret;
+
+    m  = (unsigned char *) sodium_malloc(mlen_max);
+    c  = (unsigned char *) sodium_malloc(mlen_max);
+    m2 = (unsigned char *) sodium_malloc(mlen_max);
+    crypto_box_keypair(alicepk, alicesk);
+    crypto_box_keypair(bobpk, bobsk);
+    for (mlen = 0; mlen + crypto_box_ZEROBYTES <= mlen_max; mlen++) {
+        randombytes_buf(n, crypto_box_NONCEBYTES);
+        randombytes_buf(m + crypto_box_ZEROBYTES, mlen);
+        ret = crypto_box(c, m, mlen + crypto_box_ZEROBYTES, n, bobpk, alicesk);
+        assert(ret == 0);
+#ifdef BROWSER_TESTS
+        faults = 1;
+#else
+        faults = 5;
+#endif
+        while (faults > 0) {
+            c[rand() % (mlen + crypto_box_ZEROBYTES)] = rand();
+            if (crypto_box_open(m2, c, mlen + crypto_box_ZEROBYTES, n, alicepk,
+                                bobsk) == 0) {
+                for (i = 0; i < mlen + crypto_box_ZEROBYTES; ++i) {
+                    if (m2[i] != m[i]) {
+                        printf("forgery\n");
+                        return 100;
+                    }
+                }
+            } else {
+                faults--;
+            }
+        }
+    }
+    sodium_free(m);
+    sodium_free(c);
+    sodium_free(m2);
+
+    return 0;
+}