Cryptographic Libraries

The same libraries that secure iOS and OS X are available to third‑party developers to help them build advanced security features.

Security Framework

Security Framework provides interfaces for managing certificates, public and private keys, and trust policies. It supports the generation of cryptographically secure pseudorandom numbers. It also supports the storage of certificates and cryptographic keys in the keychain, which is a secure repository for sensitive user data.

Common Crypto

The Common Crypto library provides additional support for operations like symmetric encryption, hash-based message authentication codes, and digests.