Bittensor launches quantum-resistant wallet with post-quantum signatures and automatic key rotation

Nov. 6: The Opentensor Foundation said in a post on X that Bittensor has launched a quantum-resistant wallet, giving users the option of post-quantum signatures and automatic rotation of signing keys. The wallet supports three post-quantum signature schemes — ML-DSA-65, Falcon-512 and Falcon-1024 — of which ML-DSA-65 has been standardized by the U.S. National Institute of Standards and Technology (NIST). Once a transaction signed by the user is recorded on-chain, the automatic key rotation feature switches the wallet to a new signing key; the old key can no longer authorize transactions for the account, while the address, balance and staking remain unchanged. The quantum-resistant wallet will support both coldkeys and hotkeys, covering TAO transfers, staking and validator weight setting, and also supports multisig and proxy accounts. Existing wallets can continue to be used, and users can create a new account through compatible wallet software to use post-quantum signatures.