RFI and Safeheron Pilot Post-Quantum Cryptography to Secure Digital Asset Wallets
According to The Quantum Insider, RFI and Safeheron have begun evaluating post-quantum cryptography for digital asset transactions — a technical exercise that, if executed at production parity, would…
A Post-Quantum Test for Digital Asset Custody
According to The Quantum Insider, RFI and Safeheron have begun evaluating post-quantum cryptography for digital asset transactions — a technical exercise that, if executed at production parity, would harden the signature primitives guarding wallet keys against a class of attacks that current ECDSA-based schemes cannot survive indefinitely.
The shift matters because custody stacks are only as resilient as the cryptographic assumptions they rest on. Multi-sig and key sharding distribute points of failure, but they do not, by themselves, neutralize a quantum attack vector against the underlying signature scheme. If RFI and Safeheron's test substitutes or supplements that primitive, the custody architecture shifts in ways that deserve a forensic look at threshold configurations, key rotation cadence, and the migration path for legacy addresses that remain quantum-exposed.
What Custody Operators Should Verify
Readers running custodial or self-custodial infrastructure should track three concrete items before treating the announcement as anything more than exploratory. First, the algorithm class under evaluation — lattice-based, hash-based, and code-based schemes each carry distinct performance, key size, and trust assumptions. Second, whether the test runs in a sandboxed environment or against production-equivalent key material and signing flows, since the latter is the only configuration that surfaces real attack vectors. Third, the backward-compatibility plan for already-issued addresses, because a transition window, once opened, is not reversible without coordinated migration.
Custody innovation is not confined to the post-quantum frontier. Legacy financial infrastructure is adapting in parallel — Citi's recent Custody+ launch illustrates how traditional securities servicing is being merged with Bitcoin operations under a single framework, a complementary signal that institutional custody is being rewritten from multiple angles at once.
