4 files changed, 329 insertions, 0 deletions
diff --git a/fuzz/.gitignore b/fuzz/.gitignore
new file mode 100644
index 0000000..1a45eee
--- /dev/null
+++ b/fuzz/.gitignore
@@ -0,0 +1,4 @@
+target
+corpus
+artifacts
+coverage
diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
new file mode 100644
index 0000000..8f40151
--- /dev/null
+++ b/fuzz/Cargo.lock
@@ -0,0 +1,279 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
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+[[package]]
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+version = "0.1.0"
+dependencies = [
+ "aes",
+ "blake2",
+ "constant_time_eq",
+]
+
+[[package]]
+name = "zears-fuzz"
+version = "0.0.0"
+dependencies = [
+ "arbitrary",
+ "libfuzzer-sys",
+ "zears",
+]
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 0000000..357b0ac
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,22 @@
+[package]
+name = "zears-fuzz"
+version = "0.0.0"
+publish = false
+edition = "2024"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+arbitrary = { version = "1.4.1", features = ["derive"] }
+libfuzzer-sys = "0.4"
+
+[dependencies.zears]
+path = ".."
+
+[[bin]]
+name = "fuzz_target_1"
+path = "fuzz_targets/fuzz_target_1.rs"
+test = false
+doc = false
+bench = false
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);
+    }
+});