Verified Software Toolchains: Fiat-Cryptography

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• Adam Chlipala (Massachusetts Institute of Technology)
• Wednesday 13 July 2022, 13:30-14:00
• Seminar Room 2, Newton Institute.

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VSO2 - Verified software

Big-integer modular arithmetic is surprisingly tricky to implement efficiently in cryptographic software.  Ten years ago, all such implementations for elliptic-curve crypto were coded by hand from scratch for each new prime modulus.  Our Fiat Cryptography project showed how to automate that process with a Coq-verified compiler, which has since been adopted for small but important parts of all major web browsers.  I will introduce the different techniques: a mix of data-structure verification, partial evaluation, and classic verified-compiler phases.

This talk is part of the Isaac Newton Institute Seminar Series series.

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