A new solution for asset storage, designed to withstand quantum computing attacks, was introduced on the Solana blockchain.
Developers unveiled Winternitz Vault, an open-source, quantum-resistant asset storage solution for Solana. This technology leverages an advanced hash-based signature system, generating unique keys for every transaction. The solution is now available to Solana users as an optional add-on.
Post-quantum technologies encompass a range of methods and solutions that ensure security and efficiency of digital systems in the era of growing accessibility to quantum computers.
The solution integrates several key technologies:
- Winternitz One-Time Signatures (WOTS);
- a truncated version of Keccak256 Hash Function with a 224-bit output;
- Program-Derived Addresses (PDA).
Winternitz Vault enables users to create vaults, each with a unique address. Opening and closing vaults, as well as confirming transactions, relies on WOTS. The PDA serves as an intermediary address, hiding user data and creating an isolated space for operations. This technology eliminates the risk of quantum computing attacks using public keys, as the main account keys remain concealed.
In March 2024, Vitalik Buterin emphasized the importance of preparing blockchains like Ethereum for quantum computing threats. Two months later, the first EVM-compatible blockchain network combining quantum resistance and support for smart contracts in any programming language was launched.
