Yes I have read perlfaq3 already. Yes I have read perlfilter. I am totally aware that I will not be able to completely hide my source. I have read and understood that "All decryption filters work on the principle of security through obscurity." However I am NOT asking for a recommendation on WHETHER to use one. I am asking for a pointer to a decent source filter. Do you know of one? Update: Made this clear in original question, plus this was antagonistic, quite sorry :(