Phoneprov.conf encrypt dynamic cofiguration files

Is it possible to encrypt in fly dynamic files generated in phoneprov.conf?

pseudocode for example:

[code]SIP${MAC}enc.cfg => MyEncCMD

MyEncCMD:
openssl enc -e -aes-256-cbc -k secretpass123 -in SIP000000000000.xml -out SIP000000000000.cfg[/code]