Swift

Find Certificate for Email Encryption

Demonstrates finding the recipient's certificate in the Windows certificate store and using it to send encrypted email. Swift

func chilkatTest() {
    var success: Bool = false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let mailman = CkoMailMan()!

    // Set the SMTP server.
    mailman.smtpHost = "smtp.example.com"

    // Create a new email object
    let email = CkoEmail()!

    email.subject = "This email is encrypted"
    email.body = "This is a digitally encrypted mail"
    email.from = "Joe <joe@example.com>"
    // Emails are encrypted using the recipient's certificate.
    var recipientEmailAddr: String? = "jane@example2.com"
    email.add(to: "Jane", emailAddress: recipientEmailAddr)

    // Indicate that the email is to be sent encrypted.
    email.sendEncrypted = true

    // This example demonstrates finding the email encryption certificate
    // on a Windows system where the certificate is stored in the Windows 
    // certificate store.

    let cert = CkoCert()!
    // The recipient's certificate is used to encrypt.
    // (Because the recipient is the only one in possession of the private key to decrypt.)
    success = cert.load(byEmailAddress: recipientEmailAddr)
    if success != true {
        print("\(cert.lastErrorText!)")
        return
    }

    // Specify the certificate to be used for encryption.
    success = email.setEncryptCert(cert: cert)

    success = mailman.sendEmail(email: email)
    if success != true {
        print("\(mailman.lastErrorText!)")
    }
    else {
        print("Encrypted Mail Sent!")
    }


}