Re: RSA signature verification

2011-03-22 Thread Herbert Xu
On Tue, Mar 22, 2011 at 10:57:55AM +0200, Dmitry Kasatkin wrote: > Hi, > > Accepted by whom? > We extend functionality of Integrity subsystem in order to support > flashable images which can be verified with public keys... Whoever that's going to merge the use-case for this :) I'm not adding a w

Re: RSA signature verification

2011-03-22 Thread Dmitry Kasatkin
Hi, Accepted by whom? We extend functionality of Integrity subsystem in order to support flashable images which can be verified with public keys... - Dmitry On 22/03/11 09:34, ext Herbert Xu wrote: > On Tue, Mar 22, 2011 at 08:59:56AM +0200, Dmitry Kasatkin wrote: >> As I have said in my email t

Re: [PATCH] crypto: padlock - Add SHA-1/256 module for VIA Nano

2011-03-22 Thread Herbert Xu
On Tue, Mar 22, 2011 at 02:10:13PM +0800, brill...@viatech.com.cn wrote: > Add new SHA-1/256 module that never needs any fallback and just calls > the > PadLock hardware instruction supported from VIA Nano processors to > implement > the "update" and "final" function. > They are respectively named

Re: RSA signature verification

2011-03-22 Thread Herbert Xu
On Tue, Mar 22, 2011 at 08:59:56AM +0200, Dmitry Kasatkin wrote: > > As I have said in my email that it will be used by IMA/EVM subsystem. > See security/integrity subdirectory in Linux kernel... Has the use of software asymmetric crypto in the kernel been accepted for that purpose? Thanks, --

Re: RSA signature verification

2011-03-22 Thread Dmitry Kasatkin
To elaborate a bit. Signing of some has is usually done instead of signing some input data directly. For that reason signature verification is basically a combination of hash calculation with signature verification... The issue here is that different padding schemes can be applied to the has befor

Re: RSA signature verification

2011-03-22 Thread Dmitry Kasatkin
Hi, As I have said in my email that it will be used by IMA/EVM subsystem. See security/integrity subdirectory in Linux kernel... Indeed, use of HW accelerator is also on of the targets... - Dmitry On 21/03/11 16:06, ext Herbert Xu wrote: > On Mon, Mar 21, 2011 at 04:04:41PM +0200, Dmitry Kasa