PQ-Ready Upgrades (Kyber/Dilithium)

The security of today’s blockchains is based on elliptic curve cryptography (ECC), which is vulnerable to quantum computers. Modulax is engineered for cryptographic agility, meaning its signature schemes and account abstraction can be upgraded to post-quantum (PQ) standards without breaking legacy state.

"Harvest Now, Decrypt Later is the real threat. Modulax is building for a future where quantum attacks are not hypothetical."


The Quantum Threat

  • Shor’s Algorithm can break ECDSA and elliptic curve cryptography once scalable quantum machines exist

  • Attackers can harvest encrypted data now and decrypt it in the future when quantum power is sufficient

  • Without PQ upgrades, long-term blockchain security is compromised


Modulax Approach

Modulax uses a two-phase strategy to integrate PQ cryptography:

  1. Phase One

    • Launch with standard ECDSA for full EVM compatibility

    • Ensure smooth onboarding for wallets, dApps, and tooling

  2. Phase Two

    • Introduce Kyber (encryption) and Dilithium (signatures)

    • Support PQ-ready account abstraction

    • Allow developers to choose PQ accounts without breaking legacy contracts


Kyber & Dilithium

Algorithm
Purpose
Role in Modulax

Kyber

Post-quantum key encapsulation

Secures encrypted communication and potential PQ channels

Dilithium

Post-quantum digital signatures

Replaces ECDSA for signing transactions and consensus

"Kyber and Dilithium are part of the NIST-selected post-quantum cryptography suite, giving Modulax a foundation aligned with global standards."


Developer Notes

What developers need to know:

  • Existing contracts and accounts will remain valid under ECDSA

  • PQ accounts can coexist with standard ones through account abstraction

  • RPC and JSON interfaces will expose PQ signatures as optional extensions

  • Migration tools will allow users to upgrade their wallets gradually


Roadmap for PQ Integration

  • Test PQ signature schemes in isolated modules

  • Expose PQ transaction types in testnet environments

  • Gradually roll out PQ accounts to validators and key dApps

  • Enable a full switchover path when quantum threats become practical


Conclusion

Modulax is not just an EVM-compatible blockchain. It is a quantum-resistant ledger designed to survive the next era of cryptography. By adopting Kyber and Dilithium, Modulax ensures that its consensus, accounts, and data will remain secure in the face of quantum computing.

"Future-proofing is not optional. Modulax builds today with quantum tomorrow in mind."

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