As a fan of GnuPG ...

[Ángel]

On 2020-06-18 at 16:54 +0200, Stefan Claas wrote:
> charlie derr wrote:
> 
> > Is getting those first 5 characters into the output of this string
> > really that amazing? Or am i missing something significant about what
> > the rest of the seemingly random characters represent?
> 
> Well, it is just for fun and maybe people find it cool. At least it is
> a brute-force method to find words in such hashed and base64 encoded
> strings.


Each base64 character encodes 6 bits. So on average you can expect to
get those 5 characters there once in 2^(5*6) inputs, thus requiring
about 2²⁹ operations.

Note you can do the same with gpg keys, getting such vanity keyids.

Best regards