Quantum Secure Blockchain

The Problem

Blockchain security rests on cryptographic problems that classical computers can't solve and quantum computers can. Shor's algorithm breaks the public key schemes behind digital signatures, letting an attacker derive private keys from public keys. Grover's algorithm gives a quadratic speedup against hash functions and symmetric primitives. Together they undermine the assumptions every current chain is built on.

The Research

Analyzed where quantum computing actually bites in existing infrastructure, from the consensus algorithms to the cryptographic primitives of the EVM and Hyperledger Besu. Then assessed the leading candidates for a fix, including lattice cryptography and quantum safe digital signatures, with performance analysis of what a migration would cost.

The main contribution: a proposed quantum safe blockchain protocol for EVM and Hyperledger Besu, with attack models built around Shor's and Grover's algorithms and evaluations across use cases from cryptocurrency to tokenized real world assets.

Where It Leads

Migration to quantum safe cryptography is coming for every chain worth attacking. This vertical continues where the thesis left off: tracking Ethereum's roadmap and how quantum resistant primitives make their way into production clients.

Artifacts

THESIS PDFCOMING SOON