linux-kernel - Re: [PATCH 0/4] crypto: caam

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]

Message-ID: <20190213185135.GA140810@gmail.com>
Date:   Wed, 13 Feb 2019 10:51:36 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     Horia Geanta <horia.geanta@....com>
Cc:     Iuliana Prodan <iuliana.prodan@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Aymen Sghaier <aymen.sghaier@....com>,
        "David S. Miller" <davem@...emloft.net>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH 0/4] crypto: caam - add ecb mode support

On Wed, Feb 13, 2019 at 06:45:16PM +0000, Horia Geanta wrote:
> On 2/9/2019 11:52 PM, Eric Biggers wrote:
> > Do you have an actual use case for adding more DES, 3DES, and ARC4
> > implementations, or are you simply adding them because the hardware happens to
> > supports it?  These old ciphers are insecure, so IMO more implementations should
> > only be added if there is a real use case where they're absolutely needed.
> > 
> One legit use case is PIN encryption in Point of Sale solution.
> 
> Horia

You are claiming you need DES-ECB, 3DES-ECB, *and* ARC4 for that?

Which one is it actually, if any?