Re: Protecting programs

also sprach Richard Kurth (on Thu, 03 May 2001 04:31:42PM -0700): > Is there any way to protect a php program. Like you can other software > were you can limit the amount of time they can use it. something like a > compiled c program that the php program would have to look of a cod > otherwise it will not work. Or am I just dreaming uhm. open source. you can protect it against the dumbest, but other than that... make some vital features of it dependend on a server that operates only when it receives a unique serial (md5sum) in the request, which you can check againsta a database of expiration dates... obfuscation/encryption may also work, but that's crackable. or you provide a vital part as executable that you system() from the script... martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck -- "in the country of the blind, the one-eyed man is not king. he is taken to be a hallucinating lunatic." -marshall mcluhan