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Swift 3/4 Examples

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(Swift 3/4) WPA Key Calculation from PassPhrase to Hex

Demonstrates how to calculate a WPA key from a passprhase and network SSID.

Chilkat Downloads for the Swift Programming Language

MAC OS X (Cocoa) Objective-C/Swift Libs

iOS Objective-C/Swift Libs

func chilkatTest() {
    let crypt = CkoCrypt2()!

    var success: Bool = crypt.unlockComponent("Anything for 30-day trial")
    if success != true {
        print("\(crypt.lastErrorText!)")
        return
    }

    var wpaHexKey: String?

    //  The "ps" is the WPA passphrase
    var pw: String? = "password"
    var pwCharset: String? = "ansi"

    //  Hash algorithms may be: sha1, md2, md5, etc.
    var hashAlg: String? = "sha1"

    //  Specify the SSID in hex:
    //  For example, if the SSID is "ABC", then the
    //  hex values for these us-ascii chars is "414243"
    var ssidHex: String? = "414243"

    //  The WPA key calculation will always use 4096 iterations.
    var iterationCount: Int = 4096

    //  The WPA hex output should be 256 bits.
    var outputBitLen: Int = 256

    //  Indicate that "hex" is to be returned.
    var enc: String? = "hex"

    wpaHexKey = crypt.pbkdf2(pw, charset: pwCharset, hashAlg: hashAlg, salt: ssidHex, iterationCount: iterationCount, outputKeyBitLen: outputBitLen, encoding: enc)

    print("\(wpaHexKey!!)")

}

 

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