On Mon, Apr 05, 2004 at 08:14:29AM +0000, N. E. Johnson wrote:
> Here is a proposed solution to known plain text vulnerability.
>
> Create and store a segment of random data equal in size to the data being
> encrypted.
>
> XOR the user data with stored random data.
>
> Encrypt both the random segment and the user data with conventional block
> cipher methods.
>
> Since the user data was XORed with randomness, reminiscent of OTP. This
> would prevent usage of a precomputed dictionary against known plain text.
>
> Obviously, users of this solution double their storage requirements.
Could you not use a smaller random data segment multile times?
What about encrypting twice?
--
Pav
http://www.againsttcpa.com/ ,.,
,``:'',
{o ! o}
Gain your human right of ] -+- [ My GPG/PGP key is now available at
privacy: use cryptography! \ ! / x-hkp://search.keyserver.net:11371.
`-'
`shell$ gpg --keyserver x-hkp://search.keyserver.net:11371 --recv-key 164C028F`
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