Java

Find Certificate for Email Encryption

Demonstrates finding the recipient's certificate in the Windows certificate store and using it to send encrypted email. Chilkat2 Java

import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Email;
import com.chilkatsoft.chilkat2.MailMan;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        MailMan mailman = new MailMan();

        // Set the SMTP server.
        mailman.setSmtpHost("smtp.example.com");

        // Create a new email object
        Email email = new Email();

        email.setSubject("This email is encrypted");
        email.setBody("This is a digitally encrypted mail");
        email.setFrom("Joe <joe@example.com>");
        // Emails are encrypted using the recipient's certificate.
        String recipientEmailAddr = "jane@example2.com";
        email.addTo("Jane", recipientEmailAddr);

        // Indicate that the email is to be sent encrypted.
        email.setSendEncrypted(true);

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

        Cert cert = new Cert();
        // The recipient's certificate is used to encrypt.
        // (Because the recipient is the only one in possession of the private key to decrypt.)
        try {
            cert.loadByEmailAddress(recipientEmailAddr);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Specify the certificate to be used for encryption.
        email.setEncryptCert(cert);

        try {
            mailman.sendEmail(email);
            System.out.println("Encrypted Mail Sent!");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
        }
    }
}