git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: The SHA256 of "xy\n" (ASCII, no CRLF) contains 1337, ACBAD in za, and I am 1aa

From
KSKlaus Sembritzki <klausem@gmail.com>
Date
Jan 23, 2026, 23:30 UTC
Message-ID
<CADMnYXD9BOGyBNX+7pecow=by8n_+Zhh1EJ0RYWd1c1qujrsmg@mail.gmail.com>
In-Reply-To
<xmqq8qdogdmu.fsf@gitster.g>
1. The brute-forced hash
>  Sorry, but I have to admit that I completely lack humor receptor

That is a pity, because the brute-forced hash contains "codoodikk", which reads as "code-dude and dikk".

33f1a74529870456c56ad97c59cfed6bdeadbeef9b9bc3f4ff49bb203e36f96b cco1jgdebihg0deflefjmigleilonmfkmnjmknnoikiklcodoodikkb0cncfoifk

2. Jeff King's real hash

echo jk | sha256sum 720daff2aefd2b3457cbd597509b0fa399e258444302c2851f8d3cdd8ad781eb 720 = 2*360 = 0

3. Junio C Hamano's real hash

echo jch | sha256sum c666df2af21b29a6b2c7f3b9deddda805f2ed8dcd3c72a6fbf38f6c729e2c98a 666

On Fri, Jan 23, 2026 at 11:36 PM Junio C Hamano <gitster@pobox.com> wrote:
Show 25 quoted lines
>
> Jeff King <peff@peff.net> writes:
>
> > On Fri, Jan 23, 2026 at 09:16:46PM +0100, Klaus Sembritzki wrote:
> >
> >> $ # My initials (ks): 1aa
> >> $ echo ks | sha256sum
> >> $ 1aa44e718d5bc9b7ff2003dbbb6f154e16636d5c2128ffce4751af5124b65337
> >>
> >> $ # 50566750337
> >> $ echo thinking | sha256sum
> >> $ 50566750337beb9e98e553fd9196d10576f9eb0cbc6b66e2586b9d73af4f352f
> >
> > Oh man, I've got deadbeef!
> >
> >   $ echo jk35252822 | sha256sum
> >   33f1a74529870456c56ad97c59cfed6bdeadbeef9b9bc3f4ff49bb203e36f96b
> >
> > What could it all mean?
>
> Sorry, but I have to admit that I completely lack humor receptor
> cells.
>
>
>
Previous: Junio C HamanoNext: Jeff King
Message 5 of 10 in “The SHA256 of "xy\n" (ASCII, no CRLF) contains 1337, ACBAD in za, and I am 1aa”
  1. Klaus SembritzkiJan 23, 2026
  2. Jeff KingJan 23, 2026
  3. Marc BranchaudJan 23, 2026
  4. Junio C HamanoJan 23, 2026
  5. Klaus SembritzkiJan 23, 2026
  6. Jeff KingJan 24, 2026
  7. Klaus SembritzkiJan 24, 2026
  8. Klaus SembritzkiJan 25, 2026
  9. Klaus SembritzkiJan 25, 2026
  10. Klaus SembritzkiJan 25, 2026

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.