add first fuzz binary

1 files changed, 24 insertions, 0 deletions

diff --git a/fuzz/fuzz_targets/fuzz_target_1.rs b/fuzz/fuzz_targets/fuzz_target_1.rs
new file mode 100644
index 0000000..19ba0f9
--- /dev/null
+++ b/fuzz/fuzz_targets/fuzz_target_1.rs
@@ -0,0 +1,24 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+
+use arbitrary::Arbitrary;
+use zears::Aez;
+
+#[derive(Debug, Arbitrary)]
+struct Parameters<'a> {
+    key: &'a [u8],
+    nonce: &'a [u8],
+    ad: &'a [u8],
+    tau: u32,
+    message: &'a [u8],
+}
+
+fuzz_target!(|params: Parameters| {
+    if params.tau <= 1 * 1024 * 1024 {
+        let aez = Aez::new(params.key);
+        let cipher = aez.encrypt(params.nonce, &[params.ad], params.tau, params.message);
+        let message =  aez.decrypt(params.nonce, &[params.ad], params.tau, &cipher);
+        assert_eq!(message.unwrap(), params.message);
+    }
+});