This repository contains a Python implementation of a Merkle Tree, a fundamental data structure in cryptography and blockchain technology. Merkle Trees are binary trees where each leaf node is the hash of a data block, and each non-leaf node is the hash of its children. The root of the tree offers a cryptographic summary of all the data contained within the tree.

• Simplicity: Straightforward and understandable Python code for Merkle Tree operations.
• SHA-256 Hashing: Utilizes the SHA-256 hash function for generating node hashes, providing cryptographic security.
• Proof Generation: Capability to generate proofs of data inclusion without revealing the entire tree.
• Proof Verification: Functionality to verify the proofs, ensuring data integrity and membership with only the Merkle root.

Ensure Python is installed on your system. This code is compatible with Python 3.x versions.

To use this implementation in your project, clone this repository.

Creating a Merkle Tree Instantiate a Merkle Tree with your data blocks (leaves):

from merkle_tree import MerkleTree

leaves = ['data1', 'data2', 'data3', 'data4']
merkle_tree = MerkleTree(leaves)

Getting the Merkle Root Access the root hash of the Merkle Tree, which represents the summary of all leaves:

root = merkle_tree.get_root()
print(f"Merkle Root: {root}")

Getting the Merkle Root Access the root hash of the Merkle Tree, which represents the summary of all leaves:

root = merkle_tree.get_root()
print(f"Merkle Root: {root}")

Generating and Verifying Proofs Generate a proof for a leaf's existence in the tree:

index = 1  # Index of the leaf for which you want to generate a proof
proof = merkle_tree.get_proof(index)

Verify the proof for a leaf:

leaf = 'data2'  # The data for which the proof was generated
is_valid = merkle_tree.verify_proof(leaf, proof, root)
print(f"Proof Valid: {is_valid}")