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From: Stefan Claas <pollux@tilde.club>
Newsgroups: sci.crypt
Subject: Re: Memorizing a 128 bit / 256 bit hex key
Date: Tue, 18 Jun 2024 16:05:06 +0200
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Stefan Claas wrote:

> You thoughts please, gentlemen.
> 
> Let's say you travel and do not want to store your secret hex key on your
> device and recreate it from memory.
> 
> What do you think about this proposal?
> 
> $ printf '%x' $(date -u -d '1979-01-01 12:34:56' +%s) $(date ...) 4 or 8 times.
> 
> One has to remember only the dates (times are optional) and then simply run the
> one liner.

And use that as a seed for Argon2id key creation.

> 
> The encryption software can be downloaded when one arrives at his destination.
> 

-- 
Regards
Stefan