merkle-tree-cli

Lambdaworks Merklee Tree CLI

Simple Merkle Tree CLI that uses Poseidon hash.

Usage:

To create a Merkle Tree and save it to a file you can use:

cargo run --release generate-tree <TREE_PATH>

The format of a tree csv file is as follows:

elem1;elem2;...;elemN

For example, the provided sample_tree.csv looks like this:

0x12345;0x6789A;0xBCDEF

generate-tree example:

cargo run --release generate-tree sample_tree.csv

To generate proof for a Merkle Tree you can use:

cargo run --release generate-proof <TREE_PATH> <POSITION>

generate-proof example:

cargo run --release generate-proof sample_tree.csv 0

To verify a proof you can use:

cargo run --release verify-proof <ROOT_PATH> <INDEX> <PROOF_PATH> <LEAF_PATH>

The format of a root txt file is a simple text file which only containts the root as a hex string. Using the root that yields the merkle tree generated from the sample_tree provided, root.txt would look like this:

0xa3bbbb9eac9f79d18862b802ea79f87e75efc37d4f4af4464976784c14a851b69c09aa04b1e8a8d1eb9825b713dc6ca

Likewise, the format of a leaf txt file is a simple text file which only contains the leaf as a hex string. Using the first element (index 0) of the provided sample_tree.csv as out leaf, leaf.txt would look like this:

0x12345

verify-proof example:

cargo run --release verify-proof root.txt 0 sample_tree_proof_0.json leaf.txt