[Cryptography] Some quantum computers might need more power than supercomputers

[Kent Borg]

On 1/11/26 2:16 AM, Michael Kjörling wrote:
> Or an encrypted document stored in one place, and the password for it
> in another; alongside with some indication of its contents and
> non-technical instructions for opening it in readable form. It doesn't
> even need to contain things like passwords itself; it just needs to
> give one's heirs a starting point for untangling the ball of yarn.

Yes.

But it is tricky. One needs to regularly backup passwords, in a way that 
is recoverable by a one or several specific third party(ies), while not 
being recoverable by any other third parties.

Easy to get wrong. (Reminds me of that cryptography-something vote that 
had to be redone.)

The online password services* like 1password, Lastpass should have 
widow/widower recovery features. Do they?


-kb


*  I personally don't trust them, they have too many inherently 
dangerous convenience features. And like everything that is now cloud, 
too many internal implementation details that I think are dangerous.