archive-file

How can I create a Zip archive file in Objective-C?

I have attempted to find a way to create a zip archive (or GZip archive) in Objective-C, but my knowledge of the language is still lacking. I see a way to compress an existing data structure in this question, but it does not seem to answer the question of how to make an archive. To be explicitly clear: by archive I mean the equivalent...

How can i run code on the client side from a browser?

With LLVM and silverlight this may be possible now (or it may be possible with flash). I like the user to select a file and then do the following things 1) Hash it with md5 and sha1 2) If archive check if an exe is in it 3) If archive check if password protected The first to see if the user has uploaded it already (today, yesterday, la...