Post-quantum signatures matter more because a decrypted secret ages into irrelevance, while a forged signature on a decision record voids the evidentiary value of the entire audit trail. The ledger must therefore be signed with FIPS 204 and FIPS 205, not merely encrypted.Originally published at https://mickai.co.uk/articles/why-post-quantum-signatures-matter-more-than-encryption-for-ai. Mickai is a Sovereign Intelligence Operating System; the Open Audit Record signs every artificial intelligence action before it executes, post-quantum and offline-verifiable. 104 filed UK patent applications, Mickai LTD (Companies House 17166618).
Micky Irons (Sun,) studied this question.