chain · quantum risk
Is Ink (ETH) Quantum Proof?
Verdict
Ink is not quantum-proof. Classical EVM signatures authorize users; exchange-operated infrastructure adds concentrated classical keys.
Overview
Ink is a Kraken-associated OP-Stack L2. Quantum education: EOA math plus institutional custody patterns.
Treasuries should document whether value sits in exchange custody or self-custody on Ink.
Exposure summary: Exchange-aligned L2; custodial rails may dominate real-world risk. Signature surfaces: ECDSA-secp256k1 (EVM EOAs); OP-Stack operator keys as deployed. Inventory holders, operators, and any bridge/issuer paths before treating ETH as quantum-ready. Educational only.
Cryptographic profile
What breaks
- Classical signatures authorizing ETH value under Shor-class adversaries once public keys are known
- Custodial hot wallets and exchange operational keys
- Bridges, issuers, or operator sets outside ordinary user wallets
- Sequencer / prover / upgrade keys on the L2 path
Mitigations
- Inventory every key that can move ETH (self-custody, exchange, multisig, protocol roles)
- Name the host chain and bridge path for every balance
- Document operator/admin sets for L2s and apps
- Track ecosystem PQC research; branding is not deployment
- Use /assessment and claims methodology pages for program framing
FAQ
CEX L2 safer?
Ops model differs; classical public-key assumptions remain until algorithms change.
Related?
Base/Optimism for stack patterns; exchange custody pages for operational risk.
Key concepts (technical dictionary)
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