Can I use DCP-o-matic for encryption only?

[sup]

I am not sure about that one, but DCP-o-matic is smart enough to decrypt a DCP withot reencoding it (it took it about an hour to make a new unecrypted DCP from an encrypted one). I will not try to encrypt it and will report here.

[sup]

So making an encrypted DCP from an unencrypted one took 2,5 hours, which meand the jpegs were not re-encoded, that is far above my CPU's
(Intel(R) Core(TM) i7-3720QM CPU @ 2.60GHz) ability.