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Date: Fri, 12 Apr 2024 19:23:55 -0500
From: Jacob Bachmeyer <jcb62281@...il.com>
To: Alejandro Colomar <alx@...nel.org>
CC: oss-security@...ts.openwall.com, Sam James <sam@...too.org>,
Joey Hess <id@...yh.name>,
Jonathan Nieder <jrnieder@...il.com>, Andres Freund <andres@...razel.de>,
Lasse Collin <lasse.collin@...aani.org>,
xz@...aani.org
Subject: Re: Analysis on who is Jia Tan, and who he could work
for, reading xz.git
Alejandro Colomar wrote:
> Hi Jacob,
>
> Thanks to your script, I've found a mistake in my analysis of the
> timestamps.
>
Interesting. I am very happy to have helped clear the air.
> The commit dates in +0200 recently seem to be because Jia Tan rebased
> some commits from Lasse, and used --committer-date-is-author-date.
>
> commit 3007e74ef250f0ce95d97ffbdf2282284f93764d
> Author: Lasse Collin <lasse.collin@...aani.org>
> AuthorDate: Tue Mar 5 23:21:26 2024 +0200
> Commit: Lasse Collin <lasse.collin@...aani.org>
> CommitDate: Tue Mar 5 23:23:16 2024 +0200
>
> commit 6e97b299f1b22e366ec42ba5dc5b9d0746e87b84
> Author: Lasse Collin <lasse.collin@...aani.org>
> AuthorDate: Tue Mar 5 23:21:26 2024 +0200
> Commit: Jia Tan <jiat0218@...il.com>
> CommitDate: Tue Mar 5 23:21:26 2024 +0200
>
> $ git describe --all --contains 3007e74ef250f0ce95d97ffbdf2282284f93764d
> master~37
> $ git describe --all --contains 6e97b299f1b22e366ec42ba5dc5b9d0746e87b84
> tags/v5.6.1~9
>
> The other three commits have a similar story. So it was a red herring.
> Then, all of Jia's actions have consistently been in +0800.
>
Very interesting---that red herring has gotten quite a bit of press.
> Now I'm using your scripts to collect data from several projects where I
> work, to compare with data points that I know well.
Excellent! Now we are likely to get somewhere.
-- Jacob
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