Re: [vile] encrypt/decrypt problem when moving from 9.7 to 9.8

[Thomas Dickey]

On Tue, 10 Aug 2010, Chris G wrote:

> I have some files which I access using 'vile -k <passwd> <filename>',
> I've just moved from vile 9.7za to vile 9.8 and the encrypt/decrypt
> isn't compatible.  I.e. my files that were created using vile 9.7za
> were not decrypted correctly using vile 9.8.
>
> After having a minor panic I installed vile 9.7s (the default Ubuntu
> version) and that decrypted my files OK.
>
> However I thought it would be worth reporting the issue.

Actually, that appears to be referring to a fix:

 20100405 (zc)
        + change type in vl_setup_encrypt() to "int", to make this 32-bits for
          32- and 64-bit platforms, needed to make the algorithm work with
          64-bits.  The original "long" was needed for 16-bit systems.

...but I didn't address migration from the old files to the new.

Without the fix, files created on a 32-bit system wouldn't decrypt on 
64-bit systems, and vice versa.

Regarding migration, it seems that vile-crypt (the external program) uses
the original uemacs algorith.  But it wouldn't be hard to add an option to
that, to allow one to use it for a migration utility.

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net