# BNB Chain (BNB) Quantum Readiness Report

> BNB Chain has a QRI score of 22/100 and is assessed at Stage 2 (Mitigation / Development) with medium evidence confidence.

Evaluation date: 2026-06-01. Review status: draft. Evaluated scope: Native asset (BNB) on BSC mainnet; PoSA smart-contract platform including Parlia consensus, EVM execution, BEP-336 blob transactions, and validator infrastructure.

BNB Chain (BSC) has published a thorough and technically credible post-quantum cryptography migration research report (May 2026), demonstrating a working prototype using ML-DSA-44 for transaction signatures and pqSTARK for consensus vote aggregation. The report provides detailed performance benchmarks, algorithm selection rationale, and compatibility analysis. However, as of the evaluation date (2026-06-01), no PQ protection is deployed on BSC mainnet. All production spend authorization remains ECDSA (secp256k1), all consensus authentication remains BLS12-381, P2P handshakes remain classical (ECDH), and KZG commitments for BEP-336 blob transactions have not been evaluated for PQ alternatives. The project is squarely at Stage 2 (Mitigation/Development): serious research and prototyping exists, but it does not materially protect production users. The Factor Score of approximately 24 reflects credit for substantive risk assessment (Category 1: 5/5), partial credit for prototype-level production-crypto work (Category 2: ~9.5/35), negligible migration coverage and mechanism readiness (Categories 3–4), and moderate algorithm-assurance credit for using NIST-standardized algorithms with performance analysis (Category 5: 7.5/20). The score is capped at 40 by the Readiness & Risk Cap (active production spend authorization remains entirely ECC/BLS-only) and the Stage 2 Cap, but the raw Factor Score of 24 is the binding minimum.

## Core resources

- [BNB Chain QRI report](https://qrindex.org/projects/bnb/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [BNB Chain structured report data](https://qrindex.org/projects/bnb/report.json): Complete report as JSON for deterministic machine processing.
- [QRI methodology](https://qrindex.org/methodology/): Scoring model, evidence handling, readiness stages, confidence, assurance, and report status.
- [All QRI project reports](https://qrindex.org/llms.txt): Score-ranked index of every published project assessment.
- [BNB Chain official website](https://www.bnbchain.org/en): Project-maintained website.
- [BNB Chain source repository 1](https://github.com/bnb-chain/bsc): Project source code referenced by QRI.



## Evidence sources

- [Evidence source 1](<https://www.bnbchain.org/en/blog/bsc-post-quantum-cryptography-migration-report>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 2](<https://chainwire.org/2026/05/14/bnb-chain-publishes-research-report-exploring-post-quantum-cryptography-migration-path-for-bsc/>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 3](<https://github.com/bnb-chain/bsc>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 4](<https://docs.bnbchain.org/>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 5](<https://github.com/bnb-chain/bsc/blob/master/consensus/parlia/parlia.go>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 6](<https://docs.bnbchain.org/bnb-smart-chain/validator/overview/>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 7](<https://github.com/bnb-chain/BEPs/blob/master/BEPs/BEP-336.md>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 8](<https://github.com/bnb-chain/bsc/pull/3590>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 9](<https://hacken.io/insights/bnb-security-report/>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 10](<https://blockonomi.com/bnb-chain-maps-out-post-quantum-cryptography-migration-path-for-bnb-smart-chain/>): Public source cited by the BNB Chain QRI assessment.
- [Evidence source 11](<https://crypto-economy.com/bnb-chain-explores-post-quantum-cryptography-for-future-smart-chain-security/>): Public source cited by the BNB Chain QRI assessment.