(Swift) RSA Sign using Base64 Private Key

Signs a string using a non-encrypted RSA private key in base64 encoding. Returns the RSA signature as a base64 string.

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

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

    let privKey = CkoPrivateKey()
    var success: Bool

    let sbPem = CkoStringBuilder()
    sbPem.AppendLine("-----BEGIN RSA PRIVATE KEY-----", crlf: true)
    sbPem.AppendLine("MIIC .... j5A==", crlf: true)
    sbPem.AppendLine("-----END RSA PRIVATE KEY-----", crlf: true)

    success = privKey.LoadPem(sbPem.GetAsString())
    if success != true {
        print("\(privKey.LastErrorText)")
        return
    }

    let rsa = CkoRsa()

    success = rsa.ImportPrivateKeyObj(privKey)
    if success != true {
        print("\(rsa.LastErrorText)")
        return
    }

    rsa.EncodingMode = "base64"
    var strSigned: String? = rsa.OpenSslSignStringENC("12345678")
    print("\(strSigned!)")

    var strOriginal: String? = rsa.OpenSslVerifyStringENC(strSigned)
    print("\(strOriginal!)")

}