It would be great if this feature were implemented with a mnemonic code option, with a built in checksum, as described in bip39: https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki Using the same bip39 standard (and perhaps others, as alluded to in T3497) would also improve compatibility with existing crypto key storage devices (i.e. cryptocurrency wallets used as smart cards).