feat: Recursive verification #1246
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* master: chore: address clippy warnings (#1239) chore(ssa refactor): Implement function calls (#1235) chore(ssa refactor): Implement mutable and immutable variables (#1234) chore(ssa refactor): Fix recursive printing of blocks (#1230) feat(noir): added assert keyword (#1227) chore(ssa refactor): Implement ssa-gen for indexing, cast, constrain, if, unary (#1225) feat(noir): added `distinct` keyword (#1219)
vezenovm
commented
Apr 28, 2023
| @@ -235,6 +235,25 @@ fn prepare_outputs( | |||
| outputs | |||
| } | |||
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| fn prepare_outputs_no_count( | |||
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This new method prepare_outputs_no_count was created with the addition of variable output sizes. It feels a bit hacky, but all integration tests do pass. Do we think this is fine for now or should I add logic to expose backend specific information on variable output sizes of blackbox funcs?
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Closing in favor of #1379 |
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Related issue(s)
Resolves #1154
Description
This adds a foreign function to enable recursive verification of proofs.
Summary of changes
A new std lib method was added:
Although this function signature is not final as I would like to remove the key hash field and have it be handled by the compiler. The key hash will have to be specific to a backend and we cannot rely on the compiler to generate the key hash without backend interop.
TODO: include a clean way to generate inner recursive proofs with nargo. The barretenberg backend requries a different hash type for recursive proofs (it using pedersen-blake3 for efficiency), however, the Noir requries a keccak based prover in order to be compatible with the Solidity verifier. This is why a new RecursiveProver type was added to the DSL package.
Dependency additions / changes
Currently referencing these drafts PRs:
aztec_backend: noir-lang/acvm-backend-barretenberg#146
acvm: noir-lang/acvm#234
barretenberg-sys: noir-lang/barretenberg-sys#26
barretenberg: AztecProtocol/barretenberg#383
Test additions / changes
There is a new
recursiontest that calls the newverify_proofforeign function. It currently fetches its proof data from this backend recursion test, as I still have to add a clean way to generate recursive proofs using nargo.Checklist
cargo fmtwith default settings.Documentation needs
Additional context