DeFi· ★★★★· bullish·

Cosmos Adds Post-Quantum ML-DSA Signatures in Ledger Security 2026.1 Release

  • —ML-DSA (FIPS 204) keys supported for user accounts and consensus signing
  • —Release spans Cosmos SDK v0.55.0, CometBFT v0.40.0, PoA module v1.1.0 and cosmos/kms v0.1.0
  • —A network turns post-quantum once validators with two-thirds of voting power rotate keys
  • —cosmos/kms replaces TMKMS with PKCS#11 and AWS KMS support; TMKMS leaves the bug bounty in Q1 2027
Why it matters: Cosmos becomes the first major modular ecosystem to give operators a production path to post-quantum cryptography without downtime.
Source: The Crypto Times