RecursionConstraint struct contains information required to recursively verify a proof. More...

#include <recursion_constraint.hpp>

Public Attributes
std::vector< uint32_t >	key

std::vector< uint32_t >	proof

std::vector< uint32_t >	public_inputs

uint32_t	key_hash

uint32_t	proof_type

WitnessOrConstant< bb::fr >	predicate

Friends
bool	operator== (RecursionConstraint const &lhs, RecursionConstraint const &rhs)=default

Detailed Description

RecursionConstraint struct contains information required to recursively verify a proof.

The recursive verifier algorithm produces an aggregation object representing 2 G1 points, which in the code is called PairingPoints. The smart contract Verifier must be aware of this aggregation object in order to complete the recursive verification. We output the PairingPoints object to avoid perfoming pairing calculations in-circuit.

NOTE: Each recursive verification outputs a different PairingPoints object. If a circuit performs multiple recursive verifications we aggregate the PairingPoints into a single PairingPoints using random challenges.

NOTE: If a circuit C recursively verifies a proof \(\pi\) which is the output of another recursive verification, then \(\pi\) contains among its public inputs a PairingPoints object \(P\). Then, C extracts \(P\) from the public inputs, recursively verifies the proof \(\pi\) producing a PairingPoints objects \(P'\), and then aggregates \(P, P'\) to produce a new PairingPoints object \(P_{out}\) which is added to the public inputs of C.

Parameters

key	the indices of the verification key of the circuit whose proof is recursively verified
proof	the indices of the proof being recursively verified
public_inputs	the indices of the public inputs of the proof being recursively verified
key_hash	the index of the hash of the verification key of the circuit whose proof is being recursively verified
proof_type	the type of the proof being recursively verified
predicate	witness or constant determining whether the recursive verification constraint is active

Definition at line 60 of file recursion_constraint.hpp.

Friends And Related Symbol Documentation

◆ operator==

bool operator==	(	RecursionConstraint const &	lhs,
		RecursionConstraint const &	rhs
	)

friend

Member Data Documentation

◆ key

std::vector<uint32_t> acir_format::RecursionConstraint::key

Definition at line 61 of file recursion_constraint.hpp.

◆ key_hash

uint32_t acir_format::RecursionConstraint::key_hash

Definition at line 64 of file recursion_constraint.hpp.

◆ predicate

WitnessOrConstant<bb::fr> acir_format::RecursionConstraint::predicate

Definition at line 66 of file recursion_constraint.hpp.

◆ proof

std::vector<uint32_t> acir_format::RecursionConstraint::proof

Definition at line 62 of file recursion_constraint.hpp.

◆ proof_type

uint32_t acir_format::RecursionConstraint::proof_type

Definition at line 65 of file recursion_constraint.hpp.

◆ public_inputs

std::vector<uint32_t> acir_format::RecursionConstraint::public_inputs

Definition at line 63 of file recursion_constraint.hpp.

The documentation for this struct was generated from the following file:

src/barretenberg/dsl/acir_format/recursion_constraint.hpp

Public Attributes

Friends