future proof file encryption

Werner Koch wk at gnupg.org
Sat Feb 28 12:33:37 CET 2009

On Fri, 27 Feb 2009 17:25, rjh at sixdemonbag.org said:

> After a little thought, it occurred to me that perhaps Sven meant there
> are three errors and it's not known where.  This turns into a slightly
> more complex case, but still within the realm of possibility: just over
> twenty-two million possible combinations (2.7 million combinations, with

I would simply go and store several copies of the first, say, 4k of the
encrypted archive on the backup media.  This allows to recover the
encrypted session key with a high probability.



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