Verifier in Solidity#5
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Add a Keccak256 transcript hash implementation and update the challenge sampling path to use a single Keccak squeeze with big-endian scalar encoding.
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Switch the stdlib Poseidon example to the Keccak transcript path, add final-step IVC prove/verify coverage, and publish Solidity verifier fixtures for replay.
Separate verifier options for keeping instance and fold point sets so aggregation and circuit paths can tune verifier MSM length independently.
Expose native verifier trace points across PLONK, KZG, circuit accumulator checks, and transcript wiring so Solidity verifier replay can compare intermediate values.
Move the Solidity verifier generator into the Midfall workspace with codegen, templates, docs, fixtures, scripts, tests, and validated test-command documentation.
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Jira ticket: https://eyblockchain.atlassian.net/browse/GBRD-13?atlOrigin=eyJpIjoiNWEwMzA0YzBmYTQxNGM1ZmE5NmI1ODAzZWZkMzM4YzUiLCJwIjoiaiJ9
What this PR does
It introduces a Keccak transcript and instruments the verifier algorithm in Rust to record an execution trace with the values of intermediate variables.
It introduces a rust library
solidity-verifierunder theproofscrate that generates verifier contracts for a specific verifying key. The relevant documentation can be found in the Jira ticket and underproofs/solidity-verifier/docs, as well as inproofs/solidity-verifier/README.How to test this PR
Append the
--traceflag for the trace equivalence test.IVC example:
Generated contracts under
proofs/solidity-verifier/target/ivc-keccak-solidity-dump/Moonlight proof (ssumes the Moonlight checkout is available at
../Moonlightand is on branchcodex/wrap-bench-cherry-picks).Generated contracts under
proofs/solidity-verifier/target/moonlight-wrap-solidity-dump/PBT tests (located in
proofs/solidity-verifier/src/test.rs):