error handling for batch#2
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Pull request overview
This PR improves robustness of R1CS batch verification by making VerificationTuple::padded_n fallible and propagating errors (?) through the verifier and batch verifier paths, instead of implicitly relying on arithmetic that can underflow on malformed inputs.
Changes:
- Made
VerificationTuple::padded_nreturnResult<u32, R1CSError>and added a checked subtraction to avoid underflow. - Updated verifier and batch verifier codepaths to propagate
padded_n()errors with?. - Added
ToStringimport to support error construction.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.
| File | Description |
|---|---|
| bulletproofs/src/r1cs/verifier/mod.rs | Makes padded_n() fallible and updates verifier helpers to propagate errors. |
| bulletproofs/src/r1cs/verifier/batch.rs | Updates batch verification routines to handle fallible padded_n() via ?. |
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Neopallium
approved these changes
May 7, 2026
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