Quantum Resistance
QBitcoin leverages the eXtended Merkle Signature Scheme (XMSS), a NIST-approved, stateful hash-based signature system designed to withstand quantum computing threats.
Unlike traditional cryptographic methods vulnerable to quantum attacks, XMSS relies solely on the security of cryptographic hash functions, proven resistant to quantum algorithms like Shor's.
-
Merkle Tree Structure
By integrating XMSS, QBitcoin ensures that each transaction remains secure through a Merkle tree structure, where one-time signatures are efficiently managed.
-
Post-Quantum Security
Provides robust, future-proof protection against emerging quantum technologies that threaten traditional cryptographic systems.
-
NIST Approved
Implements cryptographic standards recognized by the National Institute of Standards and Technology for post-quantum security.
# XMSS Implementation
def generate_xmss_keypair(height=10):
"""Generate XMSS key pair with specified tree height"""
seed = os.urandom(32)
xmss = XMSS(seed, height)
return xmss.private_key, xmss.public_key
def sign_transaction(private_key, message):
"""Sign transaction using XMSS one-time signature"""
signature = private_key.sign(message)
return signature
def verify_signature(public_key, message, signature):
"""Verify XMSS signature"""
return public_key.verify(message, signature)
