initial import of debian version from mentors0.6.1

1 files changed, 60 insertions, 0 deletions

diff --git a/src/libsodium/crypto_box/crypto_box_easy.c b/src/libsodium/crypto_box/crypto_box_easy.c
new file mode 100644
index 0000000..7224f24
--- /dev/null
+++ b/src/libsodium/crypto_box/crypto_box_easy.c
@@ -0,0 +1,60 @@
+
+#include "crypto_box.h"
+#include "crypto_secretbox.h"
+#include "utils.h"
+
+int
+crypto_box_detached(unsigned char *c, unsigned char *mac,
+                    const unsigned char *m, unsigned long long mlen,
+                    const unsigned char *n, const unsigned char *pk,
+                    const unsigned char *sk)
+{
+    unsigned char k[crypto_box_BEFORENMBYTES];
+    int           ret;
+
+    (void) sizeof(int[crypto_box_BEFORENMBYTES >=
+                      crypto_secretbox_KEYBYTES ? 1 : -1]);
+    crypto_box_beforenm(k, pk, sk);
+    ret = crypto_secretbox_detached(c, mac, m, mlen, n, k);
+    sodium_memzero(k, sizeof k);
+
+    return ret;
+}
+
+int
+crypto_box_easy(unsigned char *c, const unsigned char *m,
+                unsigned long long mlen, const unsigned char *n,
+                const unsigned char *pk, const unsigned char *sk)
+{
+    return crypto_box_detached(c + crypto_box_MACBYTES, c, m, mlen, n,
+                               pk, sk);
+}
+
+int
+crypto_box_open_detached(unsigned char *m, const unsigned char *c,
+                         const unsigned char *mac,
+                              unsigned long long clen, const unsigned char *n,
+                              const unsigned char *pk, const unsigned char *sk)
+{
+    unsigned char k[crypto_box_BEFORENMBYTES];
+    int           ret;
+
+    crypto_box_beforenm(k, pk, sk);
+    ret = crypto_secretbox_open_detached(m, c, mac, clen, n, k);
+    sodium_memzero(k, sizeof k);
+
+    return ret;
+}
+
+int
+crypto_box_open_easy(unsigned char *m, const unsigned char *c,
+                     unsigned long long clen, const unsigned char *n,
+                     const unsigned char *pk, const unsigned char *sk)
+{
+    if (clen < crypto_box_MACBYTES) {
+        return -1;
+    }
+    return crypto_box_open_detached(m, c + crypto_box_MACBYTES, c,
+                                    clen - crypto_box_MACBYTES,
+                                    n, pk, sk);
+}