Where to store authentication token on iPhone

Question

I use a service with a REST api that provides me with an authentication token as a response to a character in a POST request. Where is it better (and safe) to store? After that, this token should be added to each request.

Answer 1

Use Keychain Services to store passwords and tokens.

Answer 2

Use https://github.com/granoff/Lockbox . The easy way without knowing apis