swift - How do I import CommonCrypto in XCode 6.4? -

i'm relatively new swift , totally unfamiliar objective-c.

import commoncrypto  

...does nothing. implemented yet or have in old fashioned objective-c header way?

i'm aware question asked year ago during 6.0 beta, xcode 6.4. not if it's still in fact same process, process have changed path has changed.