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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