linux-kernel

Open Source and information security mailing list archives

Date:	Mon, 30 Jul 2007 11:20:58 +0530
From:	"Sriram, Kannan" <ksriram@...com>
To:	"Midhun A" <midhunagni@...il.com>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.arm.linux.org.uk>,
	<linux-mtd@...ts.infradead.org>
Subject: RE: Testing of CPRM on SD Card

Midhun,

 There is no open-source implementation of CPRM (SD-Audio/ SD-Bind
standards). So first of all, you need to license keys from 4C (device
keys, media keys etc) and do your own implementation.

 The keys that you can download from 4C site are for test purposes only,
and you can't use them to test on a real COTS SD-card. If you really
want to try those dummy keys on an SD-card, I suggest you purchase a few
"development/ test only" SD-cards from popular SD-Card manufacturers
that have been specifically encrypted using those 4C dummy keys.

Regards,
Sriram.

> -----Original Message-----
> From: linux-arm-kernel-bounces@...ts.arm.linux.org.uk
[mailto:linux-arm-
> kernel-bounces@...ts.arm.linux.org.uk] On Behalf Of Midhun A
> Sent: Saturday, July 28, 2007 5:08 PM
> To: linux-kernel@...r.kernel.org;
linux-arm-kernel@...ts.arm.linux.org.uk;
> linux-mtd@...ts.infradead.org
> Subject: Testing of CPRM on SD Card
> 
> Hi All,
> 
>     Our product development requires that we use the CPRM security
> feature of SD card for protecting our material. I have been searching
> the web for a SD host controller / Software which is CPRM capable, so
> that we can write/read an encrypted SD card with the testing keys
> provided by the 4C Entity) and test our prototype. But I could find
> none. There are IP cores but no manufactured chips.
> 
>    Has anybody of you done similar stuff ? How do I go about testing
> the CPRM feature of the SD card on our prototype ?
> 
> Thanks,
> Midhun.
> 
> -------------------------------------------------------------------
> List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm-
> kernel
> FAQ:        http://www.arm.linux.org.uk/mailinglists/faq.php
> Etiquette:  http://www.arm.linux.org.uk/mailinglists/etiquette.php
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

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