Send in your ideas. Deadline October 1, 2024
Source code :
More info available :
Theme fund: NGI Zero Core
Start: 2023-10
More projects like this
Software engineering


Symbolic evaluator and fuzzing of WASM software

WebAssembly (Wasm) is a post-JavaScript code format for the web, enabling efficient computing, with built-in sandboxed execution. Its usage is expanding: it is now used in online services, in embedded systems and to create portable binaries.

Owi is a toolkit tailored for Wasm. In particular it can perform efficient symbolic program execution. That is to say, for a given program, it is able to find input values leading to a crash. Many languages are compiling to Wasm, e.g. C/C++/Rust. Owi can thus be used as a bug-finding tool working on any of these languages. We're currently improving the usability of the tool as a part of the testing workflow for developers, the first step of this work is to provide an interface making Owi a drop-in replacement for AFL.

Run by OCamlPro

Logo NLnet: abstract logo of four people seen from above Logo NGI Zero: letterlogo shaped like a tag

This project was funded through the NGI0 Core Fund, a fund established by NLnet with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 101092990.