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-rw-r--r--code/crypto/test/aead_dec.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/code/crypto/test/aead_dec.c b/code/crypto/test/aead_dec.c
new file mode 100644
index 0000000..7deb587
--- /dev/null
+++ b/code/crypto/test/aead_dec.c
@@ -0,0 +1,46 @@
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <crypto.h>
+#include <curve25519.h>
+
+#define NONCE_LEN 8
+#define TAG_LEN 16
+#define KEY_LEN 32
+#define MSG_LEN 29
+
+static int v_rng(void *buf, size_t bufsize) {
+ int fd;
+
+ if((fd = open("/dev/urandom", O_RDONLY)) < 0) return -1;
+ size_t nb = read(fd, buf, bufsize);
+ close(fd);
+ if (nb != bufsize) return -1;
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ unsigned char in_msg[1024];
+ unsigned char out_msg[1024];
+ size_t in_msg_len;
+ int rv;
+ unsigned char public[KEY_LEN];
+ unsigned char private[KEY_LEN];
+ unsigned char key[KEY_LEN];
+ unsigned char nonce[NONCE_LEN];
+
+ int fd = open("msg.enc", O_RDONLY);
+ read(fd, private, KEY_LEN);
+ read(fd, public, KEY_LEN);
+ read(fd, nonce, NONCE_LEN);
+ read(fd, out_msg, MSG_LEN);
+ close(fd);
+
+ X25519(key, private, public);
+ rv = aead_chacha20_poly1305_open(in_msg, &in_msg_len, 1024, key, TAG_LEN, nonce, NONCE_LEN, out_msg, MSG_LEN, NULL, 0);
+ printf("OPEN RV:%d ILEN:%lu OLEN:%d\n", rv, in_msg_len, MSG_LEN);
+ printf("MSG: %s\n", in_msg);
+} \ No newline at end of file