SHA-2 FFI - #5
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Rather writing SAW scripts for proofs, this may be a good PR to explore using Crux (writing the proof scripts directly in Rust). See, for example, https://github.com/GaloisInc/ring-cryptol/blob/dbe96485faa7c093db1337b0151a604a5da728f5/src/digest/sha2.rs#L727 |
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Here is a PR to add an FFI for SHA-2. This will help accelerate Cryptol computation as well as demonstrate verification of SHA-2 using SAW.
This PR currently has just a Rust implementation. The FFI and corresponding proofs still need to be created.