> > BTW, why are you encrypting these files anyway? If someone broke into > > your computer they could just steal the crypto key too. > > Excellent question! Truth be told, as soon as they are encrypted, > they're being moved to another server in another location, and then are > being burned to CD and moved to a safety deposit box.
How about if you append a hash of the file to the file, and encrypt that
too? Then have the remote machine do the trial decrypt-and-check-hash. If
all is OK the remote machine can then tell the local one to delete the
original; and if it's not OK, it can scream at you.
--
Dr George D M Ross, School of Informatics, University of Edinburgh
Kings Buildings, Mayfield Road, Edinburgh, Scotland, EH9 3JZ
Mail: [EMAIL PROTECTED] Voice: +44 131 650 5147 Fax: +44 131 667 7209
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