1. The coq proof assistant. https://coq.inria.fr/. The coq proof assistant. https://coq.inria.fr/.
2. Easycrypt: Computer-aided cryptographic proofs. https://www.easycrypt.info/trac/. Easycrypt: Computer-aided cryptographic proofs. https://www.easycrypt.info/trac/.
3. Pvs specification and verification system. http://pvs.csl.sri.com/. Pvs specification and verification system. http://pvs.csl.sri.com/.
4. Invited - Things, trouble, trust