PureLayout - PureLayout 是 iOS & OS X Auto Layout 的终极 API——非常简单,又非常强大。PureLayout 通过一个全面的Auto Layout API 扩展了 UIView/NSView, NSArray 和 NSLayoutConstraint,仿照苹果自身的框架。
WPAttributedMarkup - WPAttributedMarkup is a simple utility category that can be used to easily create an attributed string from text with markup tags and a style dictionary。
RSAESCryptor - 加密 RSA+AES Encryption/Decryption library for iOS. This library uses 2048-bit RSA and 256-bit key with 128-bit block size AES for encryption/decryption。