[Box Backup] Exception: Cipher EVPFinalFailure (5/6)

Eric Cronin boxbackup@fluffy.co.uk
Tue, 1 May 2007 14:17:04 -0400

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On Apr 30, 2007, at 10:09 AM, Marco Bartholomew wrote:

> Chris Wilson wrote:
>> Hi Marco,
>> What version of OpenSSL are you using? It seems there may be a bug  
>> with 0.9.8d:
>>   http://www.mail-archive.com/openssl-dev@openssl.org/msg22413.html
>> In which case, you might like to downgrade to 0.9.8 to see if it  
>> fixes the problem.
> Chris:
> Thanks for the reply.  The version of openssl we upgraded to is  
> 0.9.8e, and there is definitely a bug associated with it as well:
> http://archlinux.org/news/313/
> (I guess I might have checked there first - d'oh)
> Apparently a patched version is already in testing at Arch.  I'm  
> going to wait a bit and see if that version becomes production- 
> ready soon, but if not, I will give the downgrade a shot.
> Thanks much

I was bitten by the mysterious Cipher EVPFinalFailure (5/6) error  
about 3 weeks ago also, which coincides with when I updated OpenSSL  
on both the client and server to 0.9.8e I wasn't able to get a  
precise time as to when it started due to log rotation).  As I was  
the only one experiencing the errors, I chalked it up to something  
getting majorly broken with my keys and the encrypted blocks on disk,  
and created a new account on the same server and started backing up  
from scratch to it.  Very strangely, this has been working fine for  
about 5 days now, which seems odd if it was and openssl bug.

For me at least it was far more than just a cosmetic error:  
bbackupquery could issue usage and cd, but list or restore operations  
errored out.  Also, based on the statistics lines and traffic graphs  
on the boxbackup port, 0 bytes were successfully being backed up the  
entire period when I was seeing this error.


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