feat(WIP): nova #109
feat(WIP): nova #109
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Actionable comments posted: 5
Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Files ignored due to path filters (1)
Cargo.lockis excluded by!**/*.lock
Files selected for processing (5)
- Cargo.toml (1 hunks)
- src/lib.rs (1 hunks)
- src/main.rs (1 hunks)
- src/nova/batch.rs (1 hunks)
- src/nova/mod.rs (1 hunks)
Additional comments not posted (9)
src/nova/mod.rs (1)
1-1: Module declaration looks good.The module declaration for
batchis correctly added.src/lib.rs (1)
8-8: Module declaration looks good.The module declaration for
novais correctly added.Cargo.toml (1)
71-73: Dependencies added correctly.The dependencies
bellpepper-core,bellpepper, andnova-snarkare correctly added with the specified versions and default features disabled.src/main.rs (1)
8-8: Alright, you added a new module. Big whoop.The addition of the
novamodule is fine. Make sure the module is correctly integrated and used in the codebase.src/nova/batch.rs (5)
1-17: Imports look fine.The imports are relevant to the functionality being implemented.
19-20: Type definitions are fine.The type definitions
E1andE2are correctly defined.
55-66: StructMerkleProofStepCircuitis well-defined.The struct includes various fields related to Merkle proof steps and additional fields for non-membership proof.
70-97: StructHashis well-defined.The struct includes a hash field, a phantom data field, a constructor, and a method to convert the hash to a scalar.
83-96: Functionto_scalaris well-defined.The function converts the hash to a scalar and includes detailed logic for the conversion.
| #[derive(Clone)] | ||
| enum UnifiedProofStep { | ||
| /// Update proof step ensures that an existing LeafNode is updated with a new value. | ||
| /// Cares about inputs z[0]. | ||
| // TODO: adr-003: Adding authentication circuit with poseidon hash, which is not needed in Verdict but needed here. | ||
| // This is because Verdict assumes the downstream application verifies the hashchain themselves. | ||
| // We need to be able to prove the validity of the hashchain though, since anybody can post an Update operation. | ||
| Update { | ||
| old_proof: MerkleProof, | ||
| new_proof: MerkleProof, | ||
| }, | ||
| /// InsertStart proof step ensures that a LeafNode to be inserted does not yet exist in the tree. | ||
| /// Cares about inputs z[0]. | ||
| InsertStart { | ||
| non_membership_proof: NonMembershipProof, | ||
| new_leaf: LeafNode, | ||
| }, | ||
| /// InsertUpdate proof step ensures that: | ||
| /// 1. There exists a LeafNode where existing_node.label < new_node.label < existing_node.next | ||
| /// 2. The existing_node's next pointer is updated to new_node.label. | ||
| /// Cares about inputs z[0] and z[2]. | ||
| InsertUpdate { | ||
| old_proof: MerkleProof, | ||
| new_proof: MerkleProof, | ||
| }, | ||
| /// InsertEnd proof step ensures that the new_node from the last step is added to the tree. | ||
| /// Cares about inputs z[0] and z[1]. | ||
| InsertEnd { | ||
| old_proof: MerkleProof, | ||
| new_proof: MerkleProof, | ||
| }, | ||
| } |
There was a problem hiding this comment.
Enum UnifiedProofStep is well-defined.
The enum includes detailed comments explaining each variant. The TODO comment indicates an additional feature to be added.
Do you want me to help with the TODO comment regarding adding the authentication circuit with poseidon hash?
src/nova/batch.rs
Outdated
| impl<Scalar: PrimeField> StepCircuit<Scalar> for MerkleProofStepCircuit<Scalar> { | ||
| fn arity(&self) -> usize { | ||
| // z[0] is the old root | ||
| // z[1] is the existing node's label | ||
| // z[2] is the missing node's label | ||
| 3 | ||
| } | ||
|
|
||
| fn synthesize<CS: ConstraintSystem<Scalar>>( | ||
| &self, | ||
| cs: &mut CS, | ||
| z: &[AllocatedNum<Scalar>], | ||
| ) -> Result<Vec<AllocatedNum<Scalar>>, SynthesisError> { | ||
| // ahhhh these probably arent always filled in, need to check if they are None and handle that | ||
| let previous_root = &z[0]; | ||
| let existing_node_label = &z[1]; | ||
| let missing_node_label = &z[2]; | ||
|
|
||
| let mut z_out: Vec<AllocatedNum<Scalar>> = Vec::new(); | ||
|
|
||
| match self.step_type.clone() { | ||
| UnifiedProofStep::Update { | ||
| old_proof, | ||
| new_proof, | ||
| } => { | ||
| let vars = self.process_update(cs, &old_proof, &new_proof)?; | ||
| let updated_root = vars[1].clone(); | ||
| z_out.push(updated_root); | ||
| z_out.push(missing_node_label.clone()); | ||
| z_out.push(existing_node_label.clone()); | ||
| Ok(z_out) | ||
| } | ||
| UnifiedProofStep::InsertStart { | ||
| non_membership_proof, | ||
| new_leaf, | ||
| } => { | ||
| let (non_membership_root, non_membership_path) = | ||
| unpack_and_process::<Scalar>(&non_membership_proof.merkle_proof).unwrap(); | ||
| // todo: reminder. use push and pop namespace | ||
| // let namespace = format!("non-membership for {:?}", non_membership_root); | ||
|
|
||
| // TODO: LessThan gadget | ||
| let existing_leaf = non_membership_path.first().unwrap(); | ||
| let existing_leaf_label: Scalar = Hash::new(existing_leaf.clone().get_label()) | ||
| .to_scalar() | ||
| .unwrap(); | ||
| // let existing_leaf_next: Scalar = Hash::new(existing_leaf.clone().get_next()) | ||
| // .to_scalar() | ||
| // .unwrap(); | ||
| let new_leaf_label: Scalar = Hash::new(new_leaf.label).to_scalar().unwrap(); | ||
|
|
||
| let allocated_pre_insertion_root = | ||
| AllocatedNum::alloc(cs.namespace(|| "pre_insertion_root"), || { | ||
| Ok(non_membership_root) | ||
| })?; | ||
|
|
||
| let recalculated_root = recalculate_hash_as_scalar::<Scalar>(non_membership_path) | ||
| .map_err(|_| SynthesisError::Unsatisfiable)?; | ||
|
|
||
| let allocated_recalculated_root = AllocatedNum::alloc( | ||
| cs.namespace(|| "recalculated_pre_insertion_root"), | ||
| || Ok(recalculated_root), | ||
| )?; | ||
|
|
||
| // Enforce that the provided pre-insertion root matches the recalculated root. | ||
| // This ensures that the ordered structure of the tree is maintained in the path. | ||
| // (allocated_pre_insertion_root) * (1) = allocated_recalculated_root | ||
| cs.enforce( | ||
| || "pre_insertion_root_verification", | ||
| |lc| lc + allocated_pre_insertion_root.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + allocated_recalculated_root.get_variable(), | ||
| ); | ||
|
|
||
| // we don't update the root in this operation, so we pass it on | ||
| z_out.push(previous_root.clone()); | ||
|
|
||
| // but we do need to allocate for the next Insert step functions | ||
| let z1 = AllocatedNum::alloc(cs.namespace(|| "z1"), || Ok(existing_leaf_label))?; | ||
| let z2 = AllocatedNum::alloc(cs.namespace(|| "z2"), || Ok(new_leaf_label))?; | ||
| z_out.push(z1); | ||
| z_out.push(z2); | ||
| Ok(z_out) | ||
| } | ||
| UnifiedProofStep::InsertUpdate { | ||
| old_proof, | ||
| new_proof, | ||
| } => { | ||
| let old_element_hash: Scalar = Hash::new(old_proof.path.last().unwrap().get_hash()) | ||
| .to_scalar() | ||
| .unwrap(); | ||
| let old_element_hash_alloc = | ||
| AllocatedNum::alloc(cs.namespace(|| format!("TODO")), || Ok(old_element_hash))?; | ||
| cs.enforce( | ||
| || "z1 equality check pre-proof: NAMESPACE TODO", | ||
| |lc| lc + existing_node_label.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + old_element_hash_alloc.get_variable(), | ||
| ); | ||
| // todo: does the hash contain the next value? if so, we shouldnt constrain it to the new proof as below | ||
| let new_element_hash: Scalar = Hash::new(new_proof.path.last().unwrap().get_hash()) | ||
| .to_scalar() | ||
| .unwrap(); | ||
| let new_element_hash_alloc = | ||
| AllocatedNum::alloc(cs.namespace(|| format!("TODO")), || Ok(new_element_hash))?; | ||
| cs.enforce( | ||
| || "z1 equality check post-proof: NAMESPACE TODO", | ||
| |lc| lc + existing_node_label.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + new_element_hash_alloc.get_variable(), | ||
| ); | ||
|
|
||
| let vars = self.process_update(cs, &old_proof, &new_proof).unwrap(); | ||
| let updated_root = vars[1].clone(); | ||
|
|
||
| z_out.push(updated_root); | ||
| z_out.push(missing_node_label.clone()); | ||
| z_out.push(existing_node_label.clone()); | ||
| Ok(z_out) | ||
| } | ||
| UnifiedProofStep::InsertEnd { | ||
| old_proof, | ||
| new_proof, | ||
| } => { | ||
| let vars = self.process_update(cs, &old_proof, &new_proof)?; | ||
| let updated_root = vars[1].clone(); | ||
| z_out.push(updated_root); | ||
| Ok(z_out) | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
Function synthesize is well-defined.
The function synthesizes the circuit based on the proof step type. There are several TODO comments regarding handling None values and using namespaces.
Do you want me to help address the TODO comments in the synthesize function?
There was a problem hiding this comment.
Actionable comments posted: 8
Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Files selected for processing (2)
- src/nova/batch.rs (1 hunks)
- src/nova/mod.rs (1 hunks)
Additional comments not posted (8)
src/nova/mod.rs (4)
13-14: Type aliases are fine.These type aliases are clear and concise.
16-17: Type aliases are fine.These type aliases are clear and concise.
40-117: Functiontest_novais mostly fine but needs assertions.The function lacks assertions to verify the final state.
+ // Add assertions to check the final state if needed + // For example, you might want to check if the final root matches the expected value + // assert_eq!(final_root, expected_root);Likely invalid or redundant comment.
5-11: Bloated imports!You imported a truckload of stuff. Make sure you need all this crap.
src/nova/batch.rs (4)
102-112: StructMerkleProofStepCircuitis well-defined.The struct includes necessary fields for Merkle proofs and circuits.
114-130: FunctionMerkleProofStepCircuit::newis well-defined.The function initializes a
MerkleProofStepCircuitinstance with the provided parameters.
176-179: StructHashis well-defined.The struct includes necessary fields for hash values and a phantom data marker.
181-187: FunctionHash::newis well-defined.The function initializes a
Hashinstance with the provided hash value.
src/nova/mod.rs
Outdated
| fn create_public_params() -> PublicParams<E1, E2, C1, C2> { | ||
| let mut tree = IndexedMerkleTree::new_with_size(4).unwrap(); | ||
| let test_label = sha256_mod(b"test"); | ||
| let test_value = sha256_mod(b"value"); | ||
| let mut test_node = Node::new_leaf(true, test_label, test_value, Node::TAIL); | ||
|
|
||
| let test_proof = tree.insert_node(&mut test_node).unwrap(); | ||
| let test_circuit = MerkleProofStepCircuit::from_proof(Proof::Insert(test_proof))[0].clone(); | ||
|
|
||
| let circuit_primary = test_circuit; | ||
| let circuit_secondary = TrivialCircuit::default(); | ||
|
|
||
| PublicParams::<E1, E2, C1, C2>::setup( | ||
| &circuit_primary, | ||
| &circuit_secondary, | ||
| &*default_ck_hint(), | ||
| &*default_ck_hint(), | ||
| ) | ||
| .unwrap() | ||
| } |
There was a problem hiding this comment.
Function create_public_params looks good but could use some comments.
The function is well-structured but lacks comments explaining the steps.
+ // Create a new Merkle tree with a fixed size
+ // Create a test label and value
+ // Create a new leaf node with the test label and value
+ // Insert the node into the tree and generate a proof
+ // Create a Merkle proof step circuit from the proof
+ // Set up the public parameters using the primary and secondary circuitsCommittable suggestion was skipped due to low confidence.
| #[derive(Clone)] | ||
| pub enum UnifiedProofStep { | ||
| /// Update proof step ensures that an existing LeafNode is updated with a new value. | ||
| /// Cares about inputs z[0]. | ||
| // TODO: adr-003: Adding authentication circuit with poseidon hash, which is not needed in Verdict but needed here. | ||
| // This is because Verdict assumes the downstream application verifies the hashchain themselves. | ||
| // We need to be able to prove the validity of the hashchain though, since anybody can post an Update operation. | ||
| Update, | ||
| /// InsertStart proof step ensures that a LeafNode to be inserted does not yet exist in the tree. | ||
| /// Cares about inputs z[0]. | ||
| InsertStart, | ||
| /// InsertUpdate proof step ensures that: | ||
| /// 1. There exists a LeafNode where existing_node.label < new_node.label < existing_node.next | ||
| /// 2. The existing_node's next pointer is updated to new_node.label. | ||
| /// Cares about inputs z[0] and z[2]. | ||
| InsertUpdate, | ||
| /// InsertEnd proof step ensures that the new_node from the last step is added to the tree. | ||
| /// Cares about inputs z[0] and z[1]. | ||
| InsertEnd, | ||
| } |
There was a problem hiding this comment.
Enum UnifiedProofStep is well-defined.
The enum includes detailed comments explaining each variant. The TODO comment indicates an additional feature to be added.
Do you want me to help with the TODO comment regarding adding the authentication circuit with poseidon hash?
src/nova/batch.rs
Outdated
| pub fn unpack_and_process<Scalar: PrimeField>(proof: &MerkleProof) -> Result<(Scalar, &Vec<Node>)> { | ||
| if !proof.path.is_empty() { | ||
| let root: Scalar = Hash::new(proof.root_hash).to_scalar()?; | ||
| Ok((root, &proof.path)) | ||
| } else { | ||
| // TODO: This if else makes no sense, can't we just give an empty path and let the circuit handle it? | ||
| Err(anyhow!("Proof path is empty.")) | ||
| } | ||
| } |
There was a problem hiding this comment.
Function unpack_and_process is well-defined.
The function processes a Merkle proof and returns the root and path. The TODO comment questions the logic of the if-else statement.
Do you want me to help address the TODO comment regarding the if-else logic?
src/nova/batch.rs
Outdated
| pub fn recalculate_hash_as_scalar<Scalar: PrimeField>(path: &[Node]) -> Result<Scalar> { | ||
| let mut current_hash = path[0].get_hash(); | ||
| for node in path.iter().skip(1) { | ||
| let combined = if node.is_left_sibling() { | ||
| [node.get_hash().as_ref(), current_hash.as_ref()].concat() | ||
| } else { | ||
| [current_hash.as_ref(), node.get_hash().as_ref()].concat() | ||
| }; | ||
| // TODO: sha256_mod is not generic for scalar, its using the order of bls12_381 | ||
| current_hash = sha256_mod(&combined); | ||
| } | ||
| Hash::new(current_hash).to_scalar() | ||
| } |
There was a problem hiding this comment.
Function recalculate_hash_as_scalar is well-defined.
The function recalculates the hash as a scalar. The TODO comment mentions that sha256_mod is not generic for scalar.
Do you want me to help address the TODO comment regarding the sha256_mod function?
src/nova/batch.rs
Outdated
| impl<Scalar: PrimeField> StepCircuit<Scalar> for MerkleProofStepCircuit<Scalar> { | ||
| fn arity(&self) -> usize { | ||
| // z[0] is the old root | ||
| // z[1] is the existing node's label | ||
| // z[2] is the missing node's label | ||
| 3 | ||
| } | ||
|
|
||
| fn synthesize<CS: ConstraintSystem<Scalar>>( | ||
| &self, | ||
| cs: &mut CS, | ||
| z: &[AllocatedNum<Scalar>], | ||
| ) -> Result<Vec<AllocatedNum<Scalar>>, SynthesisError> { | ||
| // ahhhh these probably arent always filled in, need to check if they are None and handle that | ||
| let previous_root = &z[0]; | ||
| let existing_node_label = &z[1]; | ||
| let missing_node_label = &z[2]; | ||
|
|
||
| let mut z_out: Vec<AllocatedNum<Scalar>> = Vec::new(); | ||
|
|
||
| match self.step_type.clone() { | ||
| UnifiedProofStep::Update => { | ||
| let old_proof = self.old_proof.clone().unwrap(); | ||
| let new_proof = self.new_proof.clone().unwrap(); | ||
|
|
||
| let vars = self.process_update(cs, &old_proof, &new_proof)?; | ||
| let updated_root = vars[1].clone(); | ||
| z_out.push(updated_root); | ||
| z_out.push(missing_node_label.clone()); | ||
| z_out.push(existing_node_label.clone()); | ||
| Ok(z_out) | ||
| } | ||
| UnifiedProofStep::InsertStart => { | ||
| let old_proof = self.old_proof.clone().unwrap(); | ||
| let (non_membership_root, non_membership_path) = | ||
| unpack_and_process::<Scalar>(&old_proof).unwrap(); | ||
| let new_leaf = self.missing_node.clone().unwrap(); | ||
| // todo: reminder. use push and pop namespace | ||
| // let namespace = format!("non-membership for {:?}", non_membership_root); | ||
|
|
||
| // TODO: LessThan gadget | ||
| let existing_leaf = non_membership_path.first().unwrap(); | ||
| let existing_leaf_label: Scalar = Hash::new(existing_leaf.clone().get_label()) | ||
| .to_scalar() | ||
| .unwrap(); | ||
| // let existing_leaf_next: Scalar = Hash::new(existing_leaf.clone().get_next()) | ||
| // .to_scalar() | ||
| // .unwrap(); | ||
| let new_leaf_label: Scalar = Hash::new(new_leaf.label).to_scalar().unwrap(); | ||
|
|
||
| let allocated_pre_insertion_root = | ||
| AllocatedNum::alloc(cs.namespace(|| "pre_insertion_root"), || { | ||
| Ok(non_membership_root) | ||
| })?; | ||
|
|
||
| let recalculated_root = recalculate_hash_as_scalar::<Scalar>(non_membership_path) | ||
| .map_err(|_| SynthesisError::Unsatisfiable)?; | ||
|
|
||
| let allocated_recalculated_root = AllocatedNum::alloc( | ||
| cs.namespace(|| "recalculated_pre_insertion_root"), | ||
| || Ok(recalculated_root), | ||
| )?; | ||
|
|
||
| // Enforce that the provided pre-insertion root matches the recalculated root. | ||
| // This ensures that the ordered structure of the tree is maintained in the path. | ||
| // (allocated_pre_insertion_root) * (1) = allocated_recalculated_root | ||
| cs.enforce( | ||
| || "pre_insertion_root_verification", | ||
| |lc| lc + allocated_pre_insertion_root.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + allocated_recalculated_root.get_variable(), | ||
| ); | ||
|
|
||
| // we don't update the root in this operation, so we pass it on | ||
| z_out.push(allocated_recalculated_root.clone()); | ||
|
|
||
| // but we do need to allocate for the next Insert step functions | ||
| let z1 = AllocatedNum::alloc(cs.namespace(|| "z1"), || Ok(existing_leaf_label))?; | ||
| let z2 = AllocatedNum::alloc(cs.namespace(|| "z2"), || Ok(new_leaf_label))?; | ||
| z_out.push(z1); | ||
| z_out.push(z2); | ||
| Ok(z_out) | ||
| } | ||
| UnifiedProofStep::InsertUpdate => { | ||
| let old_proof = self.old_proof.clone().unwrap(); | ||
| let new_proof = self.new_proof.clone().unwrap(); | ||
|
|
||
| let old_element_hash: Scalar = Hash::new(old_proof.path.last().unwrap().get_hash()) | ||
| .to_scalar() | ||
| .unwrap(); | ||
| let old_element_hash_alloc = | ||
| AllocatedNum::alloc(cs.namespace(|| format!("TODO")), || Ok(old_element_hash))?; | ||
| cs.enforce( | ||
| || "z1 equality check pre-proof: NAMESPACE TODO", | ||
| |lc| lc + existing_node_label.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + old_element_hash_alloc.get_variable(), | ||
| ); | ||
| // todo: does the hash contain the next value? if so, we shouldnt constrain it to the new proof as below | ||
| let new_element_hash: Scalar = Hash::new(new_proof.path.last().unwrap().get_hash()) | ||
| .to_scalar() | ||
| .unwrap(); | ||
| let new_element_hash_alloc = | ||
| AllocatedNum::alloc(cs.namespace(|| format!("TODO")), || Ok(new_element_hash))?; | ||
| cs.enforce( | ||
| || "z1 equality check post-proof: NAMESPACE TODO", | ||
| |lc| lc + existing_node_label.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + new_element_hash_alloc.get_variable(), | ||
| ); | ||
|
|
||
| let vars = self.process_update(cs, &old_proof, &new_proof).unwrap(); | ||
| let updated_root = vars[1].clone(); | ||
|
|
||
| z_out.push(updated_root); | ||
| z_out.push(missing_node_label.clone()); | ||
| z_out.push(existing_node_label.clone()); | ||
| Ok(z_out) | ||
| } | ||
| UnifiedProofStep::InsertEnd => { | ||
| let vars = self.process_update( | ||
| cs, | ||
| &self.old_proof.clone().unwrap(), | ||
| &self.new_proof.clone().unwrap(), | ||
| )?; | ||
| let updated_root = vars[1].clone(); | ||
| z_out.push(updated_root); | ||
| Ok(z_out) | ||
| } | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
Implementation of StepCircuit for MerkleProofStepCircuit is well-defined.
The implementation includes methods arity and synthesize. There are several TODO comments regarding handling None values and using namespaces.
Do you want me to help address the TODO comments in the synthesize function?
src/nova/batch.rs
Outdated
| impl<Scalar: PrimeField> MerkleProofStepCircuit<Scalar> { | ||
| fn process_update<CS: ConstraintSystem<Scalar>>( | ||
| &self, | ||
| cs: &mut CS, | ||
| old_proof: &MerkleProof, | ||
| new_proof: &MerkleProof, | ||
| ) -> Result<Vec<AllocatedNum<Scalar>>, SynthesisError> { | ||
| // todo: we should be checking z[0] against old_root, the reason I don't yet here is because idk how to handle the case where this is the first proof step | ||
|
|
||
| // todo: perhaps add a cumulative iterator to z to make it easier to find problems later, | ||
| // using intermediate roots as a namespace will cause a bit of searching | ||
| let namespace = format!("{:?}->{:?}", old_proof.root_hash, new_proof.root_hash); | ||
|
|
||
| // todo: repalce unwraps when i get a sec | ||
|
|
||
| let (old_root, old_path) = unpack_and_process::<Scalar>(old_proof).unwrap(); | ||
| let (updated_root, updated_path) = unpack_and_process::<Scalar>(new_proof).unwrap(); | ||
|
|
||
| let root_with_old_pointer = | ||
| AllocatedNum::alloc(cs.namespace(|| format!("old_root: {namespace}")), || { | ||
| Ok(old_root) | ||
| })?; | ||
|
|
||
| let root_with_new_pointer = | ||
| AllocatedNum::alloc(cs.namespace(|| format!("new_root: {namespace}")), || { | ||
| Ok(updated_root) | ||
| })?; | ||
|
|
||
| let recalculated_old_root = recalculate_hash_as_scalar::<Scalar>(old_path).unwrap(); | ||
| let recalculated_updated_root = recalculate_hash_as_scalar::<Scalar>(updated_path).unwrap(); | ||
|
|
||
| let allocated_recalculated_old_root = AllocatedNum::alloc( | ||
| cs.namespace(|| format!("recalculated_old_root: {namespace}")), | ||
| || Ok(recalculated_old_root), | ||
| )?; | ||
| let allocated_recalculated_updated_root = AllocatedNum::alloc( | ||
| cs.namespace(|| format!("recalculated_updated_root: {namespace}")), | ||
| || Ok(recalculated_updated_root), | ||
| )?; | ||
|
|
||
| cs.enforce( | ||
| || format!("old_root update equality: {namespace}"), | ||
| |lc| lc + allocated_recalculated_old_root.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + root_with_old_pointer.get_variable(), | ||
| ); | ||
|
|
||
| cs.enforce( | ||
| || format!("new_root update equality: {namespace}"), | ||
| |lc| lc + allocated_recalculated_updated_root.get_variable(), | ||
| |lc| lc + CS::one(), | ||
| |lc| lc + root_with_new_pointer.get_variable(), | ||
| ); | ||
|
|
||
| // is this jank or are we fine? | ||
| Ok(vec![ | ||
| allocated_recalculated_old_root, | ||
| allocated_recalculated_updated_root, | ||
| ]) | ||
| } |
There was a problem hiding this comment.
Function process_update is well-defined.
The function processes the update step in the Merkle proof circuit. There are several TODO comments regarding checking roots and replacing unwraps.
Do you want me to help address the TODO comments in the process_update function?
src/nova/batch.rs
Outdated
| // uses [`PrimeField::from_u128`] for inspiration. If the field element's capacity is not enough to hold the hash, | ||
| pub fn to_scalar(&self) -> Result<Scalar> { | ||
| let bytes = self.hash.as_ref(); | ||
|
|
||
| // Convert the 32 bytes to two u128 values | ||
| let lower = u128::from_le_bytes(bytes[0..16].try_into()?); | ||
| let upper = u128::from_le_bytes(bytes[16..32].try_into()?); | ||
|
|
||
| let mut tmp = Scalar::from_u128(upper); | ||
| for _ in 0..128 { | ||
| tmp = tmp.double(); | ||
| } | ||
| Ok(tmp + Scalar::from_u128(lower)) | ||
| } |
There was a problem hiding this comment.
Function Hash::to_scalar is well-defined but could use comments.
The function converts a hash value to a scalar but lacks comments explaining the steps.
+ // Convert the hash bytes to two u128 values
+ // Create a scalar from the upper u128 value and shift it left by 128 bits
+ // Add the lower u128 value to the scalarCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // uses [`PrimeField::from_u128`] for inspiration. If the field element's capacity is not enough to hold the hash, | |
| pub fn to_scalar(&self) -> Result<Scalar> { | |
| let bytes = self.hash.as_ref(); | |
| // Convert the 32 bytes to two u128 values | |
| let lower = u128::from_le_bytes(bytes[0..16].try_into()?); | |
| let upper = u128::from_le_bytes(bytes[16..32].try_into()?); | |
| let mut tmp = Scalar::from_u128(upper); | |
| for _ in 0..128 { | |
| tmp = tmp.double(); | |
| } | |
| Ok(tmp + Scalar::from_u128(lower)) | |
| } | |
| // uses [`PrimeField::from_u128`] for inspiration. If the field element's capacity is not enough to hold the hash, | |
| pub fn to_scalar(&self) -> Result<Scalar> { | |
| let bytes = self.hash.as_ref(); | |
| // Convert the 32 bytes to two u128 values | |
| let lower = u128::from_le_bytes(bytes[0..16].try_into()?); | |
| let upper = u128::from_le_bytes(bytes[16..32].try_into()?); | |
| // Create a scalar from the upper u128 value and shift it left by 128 bits | |
| let mut tmp = Scalar::from_u128(upper); | |
| for _ in 0..128 { | |
| tmp = tmp.double(); | |
| } | |
| // Add the lower u128 value to the scalar | |
| Ok(tmp + Scalar::from_u128(lower)) | |
| } |
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Additional comments not posted (9)
src/nova/batch.rs (9)
18-37: EnumUnifiedProofStepis well-defined.The enum includes detailed comments explaining each variant. The TODO comment indicates an additional feature to be added.
Do you want me to help with the TODO comment regarding adding the authentication circuit with poseidon hash?
39-49: StructMerkleProofStepCircuitis well-defined.The struct includes fields for various types of proofs and uses PhantomData appropriately for the generic type.
51-67: FunctionMerkleProofStepCircuit::newis well-defined.The function initializes all the fields of the struct correctly.
118-124: FunctionHash::newis well-defined.The function initializes all the fields of the struct correctly.
142-150: Functionunpack_and_processis well-defined.The function processes a Merkle proof and returns the root and path. The TODO comment questions the logic of the if-else statement.
Do you want me to help address the TODO comment regarding the if-else logic?
152-164: Functionrecalculate_hash_as_scalaris well-defined.The function recalculates the hash as a scalar. The TODO comment mentions that
sha256_modis not generic for scalar.Do you want me to help address the TODO comment regarding the
sha256_modfunction?
167-298: Functionsynthesizeis well-defined.The function synthesizes the circuit based on the proof step type. There are several TODO comments regarding handling None values and using namespaces.
Do you want me to help address the TODO comments in the
synthesizefunction?
300-359: Functionprocess_updateis well-defined.The function processes the update step in the Merkle proof circuit. There are several TODO comments regarding checking roots and replacing unwraps.
Do you want me to help address the TODO comments in the
process_updatefunction?
126-139: FunctionHash::to_scalaris well-defined but could use comments.The function converts a hash value to a scalar but lacks comments explaining the steps.
+ // Convert the hash bytes to two u128 values + // Create a scalar from the upper u128 value and shift it left by 128 bits + // Add the lower u128 value to the scalarLikely invalid or redundant comment.
src/nova/batch.rs
Outdated
| impl<Scalar: PrimeField> MerkleProofStepCircuit<Scalar> { | ||
| pub fn from_proof(proof: Proof) -> Vec<Self> { | ||
| match proof { | ||
| Proof::Insert(insert_proof) => { | ||
| vec![ | ||
| Self::new( | ||
| UnifiedProofStep::InsertStart, | ||
| Some(insert_proof.non_membership_proof.merkle_proof.clone()), | ||
| None, | ||
| true, | ||
| Some(insert_proof.non_membership_proof.missing_node), | ||
| ), | ||
| Self::new( | ||
| UnifiedProofStep::InsertUpdate, | ||
| Some(insert_proof.first_proof.old_proof), | ||
| Some(insert_proof.first_proof.new_proof), | ||
| false, | ||
| None, | ||
| ), | ||
| Self::new( | ||
| UnifiedProofStep::InsertEnd, | ||
| Some(insert_proof.second_proof.old_proof), | ||
| Some(insert_proof.second_proof.new_proof), | ||
| false, | ||
| None, | ||
| ), | ||
| ] | ||
| } | ||
| Proof::Update(update_proof) => { | ||
| vec![Self::new( | ||
| UnifiedProofStep::Update, | ||
| Some(update_proof.old_proof), | ||
| Some(update_proof.new_proof), | ||
| false, | ||
| None, | ||
| )] | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
Function MerkleProofStepCircuit::from_proof is well-defined but could use comments.
The function converts a Proof into a vector of MerkleProofStepCircuit instances but lacks comments explaining the steps.
+ // Match the proof type and create corresponding circuit steps
+ // For Insert proofs, create InsertStart, InsertUpdate, and InsertEnd steps
+ // For Update proofs, create an Update stepCommittable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| impl<Scalar: PrimeField> MerkleProofStepCircuit<Scalar> { | |
| pub fn from_proof(proof: Proof) -> Vec<Self> { | |
| match proof { | |
| Proof::Insert(insert_proof) => { | |
| vec![ | |
| Self::new( | |
| UnifiedProofStep::InsertStart, | |
| Some(insert_proof.non_membership_proof.merkle_proof.clone()), | |
| None, | |
| true, | |
| Some(insert_proof.non_membership_proof.missing_node), | |
| ), | |
| Self::new( | |
| UnifiedProofStep::InsertUpdate, | |
| Some(insert_proof.first_proof.old_proof), | |
| Some(insert_proof.first_proof.new_proof), | |
| false, | |
| None, | |
| ), | |
| Self::new( | |
| UnifiedProofStep::InsertEnd, | |
| Some(insert_proof.second_proof.old_proof), | |
| Some(insert_proof.second_proof.new_proof), | |
| false, | |
| None, | |
| ), | |
| ] | |
| } | |
| Proof::Update(update_proof) => { | |
| vec![Self::new( | |
| UnifiedProofStep::Update, | |
| Some(update_proof.old_proof), | |
| Some(update_proof.new_proof), | |
| false, | |
| None, | |
| )] | |
| } | |
| } | |
| } | |
| impl<Scalar: PrimeField> MerkleProofStepCircuit<Scalar> { | |
| pub fn from_proof(proof: Proof) -> Vec<Self> { | |
| // Match the proof type and create corresponding circuit steps | |
| match proof { | |
| // For Insert proofs, create InsertStart, InsertUpdate, and InsertEnd steps | |
| Proof::Insert(insert_proof) => { | |
| vec![ | |
| Self::new( | |
| UnifiedProofStep::InsertStart, | |
| Some(insert_proof.non_membership_proof.merkle_proof.clone()), | |
| None, | |
| true, | |
| Some(insert_proof.non_membership_proof.missing_node), | |
| ), | |
| Self::new( | |
| UnifiedProofStep::InsertUpdate, | |
| Some(insert_proof.first_proof.old_proof), | |
| Some(insert_proof.first_proof.new_proof), | |
| false, | |
| None, | |
| ), | |
| Self::new( | |
| UnifiedProofStep::InsertEnd, | |
| Some(insert_proof.second_proof.old_proof), | |
| Some(insert_proof.second_proof.new_proof), | |
| false, | |
| None, | |
| ), | |
| ] | |
| } | |
| // For Update proofs, create an Update step | |
| Proof::Update(update_proof) => { | |
| vec![Self::new( | |
| UnifiedProofStep::Update, | |
| Some(update_proof.old_proof), | |
| Some(update_proof.new_proof), | |
| false, | |
| None, | |
| )] | |
| } | |
| } | |
| } |
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- src/node_types/lightclient.rs (1 hunks)
- src/node_types/sequencer.rs (14 hunks)
- src/nova/batch.rs (1 hunks)
- src/nova/mod.rs (1 hunks)
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- src/nova/batch.rs (1 hunks)
- src/nova/insert.rs (1 hunks)
- src/nova/mod.rs (1 hunks)
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- src/nova/mod.rs (1 hunks)
- src/nova/update.rs (1 hunks)
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- src/da/memory.rs (1 hunks)
- src/da/mod.rs (2 hunks)
- src/lib.rs (1 hunks)
- src/main.rs (3 hunks)
- src/node_types/lightclient.rs (5 hunks)
- src/node_types/sequencer.rs (20 hunks)
- src/nova/batch.rs (1 hunks)
- src/nova/insert.rs (1 hunks)
- src/nova/update.rs (1 hunks)
- src/nova/utils.rs (1 hunks)
- src/storage.rs (12 hunks)
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- benches/zk_benchmarks.rs
- src/da/memory.rs
- tests/integration_tests.rs
- src/utils.rs
- src/common.rs
- src/node_types/lightclient.rs
- src/nova/utils.rs
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- src/lib.rs (1 hunks)
- src/node_types/lightclient.rs (3 hunks)
- src/node_types/sequencer.rs (20 hunks)
- src/utils.rs (5 hunks)
Summary by CodeRabbit
New Features
novamodule to enhance project modularity.batchmodule for cryptographic operations related to Merkle proofs.HashchainandHashchainEntrystructures for better management of operations.UserKeyResponsestruct for streamlined hashchain data representation.Chores