add fuzz targetv0.1.0

1 files changed, 31 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..11b9b90
--- /dev/null
+++ b/fuzz/fuzz_targets/fuzz_target_1.rs
@@ -0,0 +1,31 @@
+#![no_main]
+
+use arbitrary::Arbitrary;
+use libfuzzer_sys::fuzz_target;
+
+use leona::{KeyedHash, Lioness, ZeroIv};
+use chacha20::ChaCha20;
+use sha2::Sha256;
+use typenum::U16;
+
+type Cipher = Lioness<ZeroIv<ChaCha20>, KeyedHash<U16, Sha256>>;
+
+#[derive(Arbitrary, Debug)]
+struct Input<'a> {
+    key: &'a [u8],
+    prefix: [u8; 32],
+    data: &'a [u8],
+}
+
+fuzz_target!(|data: Input| {
+    let mut input = Vec::from(data.prefix);
+    input.extend(data.data);
+
+    let cipher = Cipher::new_dynamic(data.key);
+
+    cipher.encrypt(&mut input).unwrap();
+    cipher.decrypt(&mut input).unwrap();
+
+    assert_eq!(&input[..32], data.prefix);
+    assert_eq!(&input[32..], data.data);
+});