Messages in this thread | | | Subject | Re: crypted swapspace? | Date | Tue, 14 Dec 1999 23:45:20 +0100 | From | Olaf Titz <> |
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> something like; generate x bytes (where x = pagesize) of random data > (from entropy-pool) and do a xor for every page you're about to write
Sorry, that's not what today counts as cryptography. ;-) You give the reason:
> down. But then; if some application swapps out 20 pages of a regular > pattern; all 0x00's or whatsoever (all 0x34, all 0x8d, doesn't matter). > You will be able to re-calculate back the original key. Still, this > one-time key is really a fine idea!
...and it's really a fine idea (depending on application and needs, at least) if used with a reasonably fast _real_ encryption algorithm.
Olaf
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