what Compression Library to use for iPhone Application?

Question

Hello people i am looking for a compression library to use in iphone application, please any guide will be so great.

Edit

hopefully with AES 256 Encryption And Decryption Methods

Answer 1

zlib is part of the iPhone sdk and is a well established and free option. If you're using Xcode you can add it to your project by:

1. Right clicking on the Frameworks folder in your project (you can do it elsewhere but that's likely where you want to put it)
2. Select add file
3. Select existing frameworks
4. Select libz.1.2.3.dylib