>>
>> It is probably very difficult, possibly impossible in practice, to
>> backdoor a symmetric cipher. For evidence, I direct you to this old
>> paper by Blaze, Feigenbaum and Leighton:
>>
>> http://www.crypto.com/papers/mkcs.pdf
>>
>
> There is also a theorem somewhere (I am forgetting where
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On Sep 5, 2013, at 9:33 PM, "Perry E. Metzger" wrote:
>
> It is probably very difficult, possibly impossible in practice, to
> backdoor a symmetric cipher. For evidence, I direct you to this old
> paper by Blaze, Feigenbaum and Leighton:
>
> http:/
On Thu, 5 Sep 2013 23:24:54 -0400 Jerry Leichter
wrote:
> They want to buy COTS because it's much cheap, and COTS is based on
> standards. So they have two contradictory constraints: They want
> the stuff they buy secure, but they want to be able to break in to
> exactly the same stuff when anyo
