Re: Tape backups using loop-aes/aespipe

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>>>>> "Marcus" == Marcus Williams <marcus@xxxxxxxxxxxxx> writes:

[...]

>> If compression is used (like in bz2aespipe script), then errors may
>> propagate to much larger set of data. Decompressors operate in GIGO
>> mode, garbage in - garbage out, and you may even get a bonus SIGSEGV
>> if you are lucky.

Marcus> So compress stuff before you put it on the loop presumably. ...

Well, you should always compress before encrypting.  Encrypted data is
supposed to look fairly random, and hence should have extremely bad
compression ratios.  Perhaps Jari is referring to the fact that if
you're compressing, then the 16+ bytes that you lost of compressed
data, since it is compressed, represents maybe 32+ bytes of real data.

-- 
Hubert Chan <hubert@xxxxxxxxx> - http://www.uhoreg.ca/
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