[lkml]   [2012]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [dm-devel] [PATCH] dm: remake of the verity target
    On Tue, Mar 20, 2012 at 8:44 PM, Mikulas Patocka <> wrote:
    > 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 <>
    >> Regards,
    >> Mandeep
    >> > Mikulas
    > I can introduce a switch to make it accept the old format. Do you want to?

    We can carry that as an out-of-tree patch until we migrate.

    On the other hand, it might be nice to support prepend or append.

    I don't too strong feelings but it might be nice to have
    prepend/append flag. Would definitely make our life easier.

    > Mikulas

     \ /
      Last update: 2012-03-21 04:51    [W:0.021 / U:12.672 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site