Thank you Garick for the reply. I'm not familiar with Perl so could you
modify your suggestion to indicate where / how I specify the input file?
Thank you.
John
> I've done things like this is the past. My suspicion is you are
> using a shell that does not specify binary mode on pipelines. I
> think line endings in the file were corrupted when it was written to
> JMBkFile.ssl and possible when it was written to openssl from
> JMBkFile.tar.
>
> This kind of thing can be done reliably with perl using binmode.
> Some shells do not set binary mode on the file descriptors when
> using redirection.
>
> That is my guess if so you should see a lack of bare newlines in
> the corrupted file. If so, the file likely has a nontrivial number
> of corrupted points so it is likely intractable to recover. This is
> obviously not an openssl problem if this is the case.
>
> If so, something like this might be an interesting test.
>
> perl -0377 -ne '$c++ if /(?<![\r])([\n])/; END { print $c }'
>
> It will count the number of bare newlines.
>
> Garick
>
>
>
>
>
> On Sun, Sep 27, 2009 at 02:25:55PM -0400, John Medearis wrote:
>> Using openssl on Windows Vista 64-bit. Would create a tar backup of
>> data,
>> and then use openssl to encrypt:
>>
>> openssl enc -aes-256-cbc -salt -pass file:backup_key < JMBkFile.tar >
>> JMBkFile.ssl
>>
>> This has worked well on a RHEL 5 box, with a 1.2GB tar file. I have
>> been
>> able to encrypt and decrypt successfully.
>>
>> The windows backup file is 8.3GB. The password file has a single line
>> containing just the password, no CR or LF, no additional lines.
>>
>> I have tried to decrypt specifying the file on the command line,
>> specifying the actual password on the command line, but I continue to
>> receive the Bad Decrypt message. All of the posts I can find that seem
>> to
>> apply to my situation suggest a bad password or specifying the wrong
>> encryption algorithm, but I know they are correct because I have a
>> command
>> file that creates it, so I know the parameters being used.
>>
>> Is it the size of the file? What other possibilities should I look at?
>>
>> John
>>
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> OpenSSL Project http://www.openssl.org
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