On Mon, Oct 26, 2015 at 01:21:24PM +0100, Michel wrote: > I believe it might be usefull to remind in the documentation that the > -cipher argment for openssl pkey command line tool is silently ignore when > combined with -outform DER. > > May be it is worth to add a warning too ? I think a fatal error would be appropriate. If you want encrypted DER keys, you'll need PKCS#8 or PKCS#12. -- Viktor.