# Kaspa (KAS) Quantum Readiness Report

> Kaspa has a QRI score of 6/100 and is assessed at Stage 1 (Quantum Risk Assessed) with medium evidence confidence.

Evaluation date: 2026-06-05. Review status: draft. Evaluated scope: Native L1 asset and protocol (PoW blockDAG, GHOSTDAG consensus, UTXO model).

Kaspa (KAS) is a proof-of-work blockDAG network using GHOSTDAG consensus with a UTXO model. As of the evaluation date, Kaspa has no production post-quantum cryptographic protection whatsoever. All spend authorization uses Schnorr (default) or ECDSA signatures on secp256k1—both fully vulnerable to Shor's algorithm. The P2PK address format exposes public keys immediately upon funding, creating a massive long-exposure quantum attack surface. Critically, Kaspa's MuHash UTXO commitment scheme depends on the ECDLP, meaning a quantum adversary could forge the network state after data pruning, enabling chain-history rewriting. A community-authored KIP proposes a 4-phase quantum resiliency strategy including P2PKH-Blake2b-256-via-P2SH addresses, but this remains a draft proposal with no production implementation, no official core team adoption, and no mainnet or testnet deployment. Quantum risk is publicly acknowledged (Kaspa wiki FAQ: 'Not yet'), but no official cryptographic inventory, formal risk assessment, or core-team mitigation roadmap exists. The QRI Score of 6 reflects quantum risk awareness without any meaningful production protection. All value-at-risk (~100%) remains exposed to quantum key-recovery attacks.

## Core resources

- [Kaspa QRI report](https://qrindex.org/projects/kaspa/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [Kaspa structured report data](https://qrindex.org/projects/kaspa/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.
- [Kaspa official website](https://www.coingecko.com/en/coins/kaspa): Project-maintained website.



## Evidence sources

- [Evidence source 1](<https://github.com/bitcoinsSG/Kaspa-Post-Quantum-Improvement-Proposal>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 2](<https://wiki.kaspa.org/en/faq>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 3](<https://github.com/bitcoinsSG/Kaspas-Phase-I-Towards-Quantum-Resiliency>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 4](<https://github.com/kaspanet/rusty-kaspa>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 5](<https://kaspa.org/>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 6](<https://explorer.kaspa.org/>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 7](<https://www.cube.exchange/what-is/kaspa>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 8](<https://kaspa-mdbook.aspectron.com/transactions/sighashes.html>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 9](<https://kaspa.org/lore>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 10](<https://captainaltcoin.com/kaspas-quantum-achilles-heel-why-utxo-commitments-will-break-first/>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 11](<https://bitcoinist.com/kaspas-quantum-achilles-heel-utxo-commitments-can-be-broken-the-only-crypto-that-protects-you-is-bmic/>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 12](<https://www.ainvest.com/news/kaspa-unveils-evm-layer-2-roadmap-quantum-security-concerns-2604/>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 13](<https://www.reddit.com/r/kaspa/comments/1hk56t9/kaspa_vs_quantum_computing/>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 14](<https://wiki.kaspa.org/en/updates-and-projects>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 15](<https://www.gate.com/blog/kaspa-toccata-hard-fork-pow-blockchain-programmable-era-upgrade-analysis>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 16](<https://github.com/kaspanet/kaspad>): Public source cited by the Kaspa QRI assessment.
- [Evidence source 17](<https://github.com/kaspanet/kips/blob/master/kip-0002.md>): Public source cited by the Kaspa QRI assessment.