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Swift 2 Examples

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(Swift 2) Get an Ed25519 Key in Raw Hex Format

Demonstrates how to get the private and public key parts of an Ed25519 key in lowercase hex formmat.

Note: This example requires Chilkat v9.5.0.83 or greater.

Chilkat Downloads for the Swift Programming Language

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

iOS Objective-C/Swift Libs

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

    // Load an Ed25519 key from some format..
    let privKey = CkoPrivateKey()

    // This loads an Ed25519 key from an unencrypted PEM file (no password required).
    var success: Bool = privKey.LoadAnyFormatFile("qa_data/eddsa/ed25519.pem", password: "")
    if success == false {
        print("\(privKey.LastErrorText)")
        return
    }

    // The key type should be "ed25519" to indicate an Ed25519 key.
    print("key type = \(privKey.KeyType)")

    // What is the size of the private key in bits?  (should always be 256 bits for Ed25519)
    print("size in bits = \(privKey.BitLength.intValue)")

    // Get the private and public key parts in raw hex format:
    let sbPubKeyHex = CkoStringBuilder()
    var privKeyHex: String? = privKey.GetRawHex(sbPubKeyHex)

    // We should have a 32-byte private key (a 64 character hex string).
    print("private key = \(privKeyHex!)")

    // We should have a 32-byte public key (a 64 character hex string).
    print("public key = \(sbPubKeyHex.GetAsString())")

    // Sample output:
    // key type = ed25519
    // size in bits = 256
    // private key = d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842
    // public key = 19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1

}

 

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