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Date: Tue, 20 Mar 2012 23:44:47 -0400 (EDT) From: Mikulas Patocka <mpatocka@...hat.com> To: Mandeep Singh Baines <msb@...omium.org> cc: device-mapper development <dm-devel@...hat.com>, Steffen Klassert <steffen.klassert@...unet.com>, Will Drewry <wad@...omium.org>, linux-kernel@...r.kernel.org, Elly Jones <ellyjones@...omium.org>, Olof Johansson <olofj@...omium.org>, Andrew Morton <akpm@...ux-foundation.org>, Alasdair G Kergon <agk@...hat.com>, Milan Broz <mbroz@...hat.com> Subject: Re: [dm-devel] [PATCH] dm: remake of the verity target On Tue, 20 Mar 2012, Mandeep Singh Baines wrote: > But we are hashing fixed-sized blocks so there is no possibility of extension. If the first part of some block contains some security-sensitive data and the last part of the same block can be attacker-controlled, he can use the collision attack to change the security-sensitive data. > However, better safe than sorry. I guess we'll just have to deal with > backward incompatibility. So feel free to add my sign off to the new > patch also. > > Signed-off-by: Mandeep Singh Baines <msb@...omium.org> > > Regards, > Mandeep > > > Mikulas I can introduce a switch to make it accept the old format. Do you want to? Mikulas -- 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/
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