Intial addition of libfuzzer

fuzz/.gitignore

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+
+target
+corpus
+artifacts

fuzz/Cargo.toml

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+
+[package]
+name = "snow-fuzz"
+version = "0.0.1"
+authors = ["Automatically generated"]
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies.snow]
+path = ".."
+[dependencies.libfuzzer-sys]
+git = "https://github.com/rust-fuzz/libfuzzer-sys.git"
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "params"
+path = "fuzz_targets/params.rs"

fuzz/fuzz_targets/params.rs

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+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate snow;
+
+use snow::Error;
+use snow::params::NoiseParams;
+
+fuzz_target!(|data: &[u8]| {
+    if let Ok(s) = String::from_utf8(data.to_vec()){
+        let _: Result<NoiseParams,Error> = s.parse();
+    }
+});

tests/fuzz_findings.rs

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+extern crate snow;
+
+use snow::Error;
+use snow::params::NoiseParams;
+
+#[test]
+fn fuzz_1(){
+    let _: Result<NoiseParams,Error> = "Noise_/I××QQQ••".parse();
+}