On Fri, May 20, 2011 at 05:18:16PM -0500, Nico Williams wrote:
> > I wonder if A/V shouldn't use something similar?
>
> The rsync rolling CRC is useful for detecting insertions an deletions
> -- i.e., remote diff.
Right, but right now some anti-virus does hashes over the whole file,
or so I've he
On 21/05/11 01:04, Sebastien Martini wrote:
From a practical point of view there is however something not really
handy with Schnorr's signature scheme, that is you can't call the sign
function with a hash of the message because the ephemeral public key
must be concataned to the message before b
On 2011-05-21 9:12 AM, Paul Crowley wrote:
On 20/05/11 23:49, Nico Williams wrote:
What about using Shcnorr's signature scheme with ECDH? Here's DJB
talking about it in the context of his Curve25519, which uses the
discard-y point compression technique:
http://www.derkeiler.com/Newsgroups/sci.c
Usage of the word rolling is also trademarked and limited.
You forgot about wheels that do not roll. Can't use that either.
You may have found some people using wheels for rolling. They should be
frowned upon, given extra-intimate pat-downs, blackmailed, arrested anyway,
made fun of before trial,
On May 21, 2011, at 3:53 47AM, travis+ml-rbcryptogra...@subspacefield.org wrote:
> On Fri, May 20, 2011 at 05:18:16PM -0500, Nico Williams wrote:
>>> I wonder if A/V shouldn't use something similar?
>>
>> The rsync rolling CRC is useful for detecting insertions an deletions
>> -- i.e., remote di
Dear Nico Williams:
Thanks for the reference! Very cool.
What I would most want is for ZFS (and every other filesystem) to
maintain a Merkle Tree over the file data with a good secure hash.
Whenever a change to a file is made, the filesystem can update the
Merkle Tree this with mere O(log(N)) wor
On Sat, May 21, 2011 at 2:53 AM,
wrote:
> On Fri, May 20, 2011 at 05:18:16PM -0500, Nico Williams wrote:
>> A function with
>> that property isn't a hash function.
>
> How do you figure?
Well, to be fair, a rolling hash is a hash function, proper. It may
well not be what we'd call a cryptographi
On Sat, May 21, 2011 at 1:50 PM, Zooko O'Whielacronx wrote:
> What I would most want is for ZFS (and every other filesystem) to
> maintain a Merkle Tree over the file data with a good secure hash.
Me too. ZFS does do that, but unfortunately the internal Merkel hash
maintained this way also has m