HashKit is wrapped C style library CommonCrypt in Swift.
If you don't have Cartfile, should make that file in your top of project.
Add line to Cartfile
github "fromkk/HashKit" == 0.0.7
Execute carthage update from command line.
import HashKit
//NSData
let data = NSData(...)
print(data.md5())
print(data.sha1())
print(data.sha224())
print(data.sha256())
print(data.sha384())
print(data.sha512())
//String
let text = String(...)
print(text.md5())
print(text.sha1())
print(text.sha224())
print(text.sha256())
print(text.sha384())
print(text.sha512())
//hmac
text.hmac(.md5, key: "some key")