Adding methods to NSData and NSString using categories to provide AES256 encryption on iOS

Readme.markdown

Important notice

I took down this Gist due to concerns about the security of the encryption/decryption part of this code (see comments below).

Rob Napier (@rnapier) has created a publicly available class that provides similar AES encryption/decryption functionality at https://github.com/rnapier/RNCryptor.

Some body could help me, I get two errors

Undefined symbols for architecture i386:
"_STAssertTrue", referenced from:
-[BrowserController testStream] in SomeFile.o
"_STAssertEqualObjects", referenced from:
-[BrowserController testStream] in SomeFile.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Have you pulled the entire project, or just dropped the files into another project? The failed symbols are from the unit tests. You don't need those in a real project. If you want to build the unit tests, you need to link with SenTestingKit.framework (this comes with Xcode).

ok thanks. Now when I try to build in iOS 4.3 i got this error
dyld: lazy symbol binding failed: Symbol not found: _CCKeyDerivationPBKDF
and
dyld: Symbol not found: _CCKeyDerivationPBKDF
but it works fine in simulator 5.0

See the discussion here: RNCryptor/RNCryptor#22. RNCryptor is currently designed to be iOS5 only. I'm considering whether to modify that.