linux-kernel - Re: email as a bona fide git transport

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 18 Oct 2019 12:03:43 -0400
From:   Konstantin Ryabitsev <konstantin@...uxfoundation.org>
To:     Santiago Torres Arias <santiago@....edu>
Cc:     Vegard Nossum <vegard.nossum@...cle.com>, Willy Tarreau <w@....eu>,
        workflows@...r.kernel.org, Git Mailing List <git@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, Eric Wong <e@...24.org>
Subject: Re: email as a bona fide git transport

On Fri, Oct 18, 2019 at 11:54:09AM -0400, Santiago Torres Arias wrote:
>> Seeing how large this signature is, I have to admit that I am partial to
>> Konstantin's suggestion of using minisign. This seems like something
>> that could be added to git as an alternative to gpg without too much
>> trouble, I think.
>
>I wonder how big the pgp payload would be with ed25519 as the underlying
>algorithm. AFAICT, the payload of a minisign signature vs a signature
>packet have almost the same fields...

It's smaller, but it's not a one-liner. Here's a comparison using 
ED25519 keys of the same length:

minisign:

RWQ4kF9UdFgeSt3LqnS3WnrLlx2EnuIFW7euw5JnLUHY/79ipftmj7A2ug7FiR2WmnFNoSacWr7llBuyInVmRL/VRovj1LFtvA0=

pgp:

-----BEGIN PGP SIGNATURE-----

iHUEARYIAB0WIQR2vl2yUnHhSB5njDW2xBzjVmSZbAUCXaniFAAKCRC2xBzjVmSZ
bHA5AP46sSPFJfL2tbXwswvj0v2DjLAQ9doxl9bfj9iPZu+3qwEAw5qAMbjw9teL
L7+NbJ0WVniDWTgt+5ruQ2V9vyfYxAc=
=B/St
-----END PGP SIGNATURE-----

-K