Endpoint Encryption

We encrypt over a 100 files named basically the same and every once in a while the vendor cannot decrypt a specific file. To test, we take the file and encrypt with our key and try to decrypt and we cannot. It says Error Decrypting File. The filename is XXXXXXXX_XXXXX_00002_XXX_20130605_150529 . X's are in place of actual name.

So we take the filename and remove the last underscore and the new filename is 2013060515029 at the end. We encrypt with our key and are able to decrypt. We then encrypt with the vendors key and send to them and they are able to decrypt. Why is this happening?

UNIX

6.5.1 version

I really have no idea.  Version 6.5 is terribly old and is the version that was released by Network Associates (McAfee/Intel now).  You may want to upgrade to something newer and supported.  Might I suggest PGP Command Line?  McAfee have announced end-of-life for their eBusiness Server line of products, so upgrading to a newer McAfee offering may not be what you want to do.

Regards,

I just copied the data into a new text file and named it exactly as it was when it failed. The file decrypted successfully. What would cause the file to be bad?

Any chance that when the file decryption works, it is from a folder with a shorter path (less path characters)?

No, I received the same error in the folder or directory that I am decrypting in. The only solution is to shorten the name but I need to know why the error is occuring. This error happens every 50 to 100 files.