Re: Memorizing a 128 bit / 256 bit hex key

Cri-Cri <cri@cri.cri.invalid> wrote:

On Tue, 18 Jun 2024 19:42:08 -0000 (UTC), Rich wrote:
 

only when it is run to 'check' the output.  Then it would, presumably,
be no more suspicious than the 'date' command itself (other than what
suspicion might be raised by the fact that most OS'es don't ship with an
erasure coder by default).

 
But many (most?) Linux distributions ship with Python (or it's easy to
acquire), which can be used to obfuscate such things.
 

import hashlib as h
h.sha256(b'this is my secret key I DO remember').hexdigest()[::-1]

'6a8aabb884123762ccf20e6445fddfe58446ba47b4622a315b7d22bae992f965'
 
So little code you don't have to save anything to disk. The secret key is
almost longer. :)

Also true, and a way to convert something potentially more memerable
than a set of random dates into a 'key'.

And so long as one's python REPL does not save history (or you turn off
history before running the above) you leave no trace behind.