VAZ256™

Verified Abbreviated Zeta 256 bits (VAZ256) - is a post-quantum cryptographic digital signature scheme that combines Dilithium5 and SHAKE256 for secure digital signatures and efficient compressed 32-byte public keys.

Acknowledgments and Third-Party Code

This project includes modified code from the following open-source projects:

• Parts of CRYSTALS-Dilithium Rust implementation by Quantum Blockchains
  • Original Repository: https://github.com/Quantum-Blockchains/dilithium
  • Files: [list of specific files containing modified code]
  • Original License: GPL-3.0
  • Which itself was ported from the reference implementation at: https://github.com/pq-crystals/dilithium

VAZ256™ is built upon these foundations but includes significant modifications and original work. The name "VAZ256" is a trademark of Fran Luis Vazquez Alonso.

Features

• Hybrid post-quantum security based on Dilithium5
• Compact 32-byte public keys using SHAKE256
• Pure Rust implementation
• Zero-dependency core functionality
• Comprehensive test suite and benchmarks

Security Considerations - Use at Your Own Risk

• This implementation is currently in development and has not been audited
• Use in production systems is not recommended until formal security analysis is complete

Performance

Benchmark results and performance characteristics using RockChip RK3562 2.0 GHz.

• Key generation time ~ 1.33 ms
• Signing time ~ 5.00 ms
• Signature verification time ~ 1.01 ms

Documentation

Full documentation is available at docs.rs/vaz256

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Copyright and License

Copyright (C) 2025 Fran Luis Vazquez Alonso

VAZ256™ is a trademark of Fran Luis Vazquez Alonso. The name "VAZ256" and "Verified Abbreviated Zeta" may not be used for derivative works without express permission.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Contact Information

• Email: cybervazquez@protonmail.com

The complete text of the GNU General Public License can be found in the LICENSE file in this repository or at https://www.gnu.org/licenses/.