Crate merkrs 

merkrs

A Rust Merkle tree library compatible with OpenZeppelin’s JavaScript implementation.

Features

• StandardMerkleTree — ABI-encoded Solidity values with double leaf hashing
• SimpleMerkleTree — raw [u8; 32] values with single leaf hashing
• Single-leaf and multi-proof generation / verification
• Serialisation compatible with the OZ JavaScript standard-v1 / simple-v1 formats
• Keccak-256 hashing (Ethereum compatible)

Quick start

use merkrs::{Bytes32, SimpleMerkleTree, simple};

let values: Vec<Bytes32> = vec![[1u8; 32], [2u8; 32], [3u8; 32], [4u8; 32]];
let tree = SimpleMerkleTree::new(&values, simple::Options::default())?;

let proof = tree.proof(&values[0])?;
assert!(tree.verify_proof(&values[0], &proof)?);

Re-exports

pub use bytes::Bytes32;

pub use error::Error;

pub use error::Result;

pub use hashes::NodeHashFn;

pub use hashes::NodeHashKind;

pub use hashes::keccak256;

pub use hashes::standard_leaf_hash;

pub use hashes::standard_node_hash;

pub use merkle::LeafHasher;

pub use merkle::MerkleTree;

pub use simple::SimpleMerkleTree;

pub use simple::SimpleMerkleTreeData;

pub use standard::StandardMerkleTree;

pub use standard::StandardMerkleTreeData;

pub use tree::MultiProof;

pub use tree::MultiProofJson;

Modules

bytes

32-byte hash values and hex-string conversion utilities.

error

Error types and the crate-level Result alias.

hashes

Keccak-256 hashing primitives.

merkle

Generic Merkle tree core and the LeafHasher trait.

simple

SimpleMerkleTree — Merkle tree over raw [u8; 32] values.

standard

StandardMerkleTree — Merkle tree over ABI-encoded Solidity values.

tree

Flat-array Merkle tree primitives shared by simple and standard trees.