(Swift 2) Hash the Contents of a String (SHA256 and other hash algorithms)

Demonstrates how to hash the contents of a string using SHA256, SHA384, SHA512, MD2, MD5, HAVAL, RIPEMD, etc.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat Crypt API to have been previously unlocked.
    // See Unlock Chilkat Crypt for sample code.

    let crypt = CkoCrypt2()

    // Choose the hash algorithm.
    // Can be  "sha1", "sha256", "sha384", "sha512", "md2", "md5", "haval", "ripemd128", "ripemd160","ripemd256", or "ripemd320".
    crypt.HashAlgorithm = "sha256"

    // The byte representation of the string matters when hashing. 
    // Tell Chilkat that we want to use the utf-8 byte representation.
    crypt.Charset = "utf-8"

    var hashBytes: NSData
    hashBytes = crypt.HashString("They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.")

    // Let's examine the hash as a hex string.
    let sb = CkoStringBuilder()
    sb.AppendEncoded(hashBytes, encoding: "hex")
    print("SHA256 hash = \(sb.GetAsString())")

}