On Fri, Jul 09, 2021 at 03:35:21PM +0300, Jean Louis wrote:
> * tomas@tuxteam.de <tomas@tuxteam.de> [2021-07-09 14:53]:

[...]

> >  - see the `ceiling' function [...]

> Thanks, now I know for that:
> 
> (defun pad-to-multiple-bytes (string length)
>   "Return string padded to multiple of MAX bytes."
>   (let* ((bytes (string-bytes string))
> 	 (multiple (* (ceiling bytes length) length)))
>     (string-pad string multiple)))
> 
> > I'm not sure you want to encrypt a zero bytes string at all, but
> > this might get philosophical)
> 
> There may be problems which I will never encounter practically. I know.

:-)

> 
> >  MAX is an unfortunate variable name for that.
> 
> Now is length.

Not yet in the comment, though ;-)

Cheers
 - t