C

Find Certificate for Email Encryption

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

#include <C_CkMailMan.h>
#include <C_CkEmail.h>
#include <C_CkCert.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMailMan mailman;
    HCkEmail email;
    const char *recipientEmailAddr;
    HCkCert cert;

    success = FALSE;

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

    mailman = CkMailMan_Create();

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

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

    CkEmail_putSubject(email,"This email is encrypted");
    CkEmail_putBody(email,"This is a digitally encrypted mail");
    CkEmail_putFrom(email,"Joe <joe@example.com>");
    //  Emails are encrypted using the recipient's certificate.
    recipientEmailAddr = "jane@example2.com";
    CkEmail_AddTo(email,"Jane",recipientEmailAddr);

    //  Indicate that the email is to be sent encrypted.
    CkEmail_putSendEncrypted(email,TRUE);

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

    cert = CkCert_Create();
    //  The recipient's certificate is used to encrypt.
    //  (Because the recipient is the only one in possession of the private key to decrypt.)
    success = CkCert_LoadByEmailAddress(cert,recipientEmailAddr);
    if (success != TRUE) {
        printf("%s\n",CkCert_lastErrorText(cert));
        CkMailMan_Dispose(mailman);
        CkEmail_Dispose(email);
        CkCert_Dispose(cert);
        return;
    }

    //  Specify the certificate to be used for encryption.
    success = CkEmail_SetEncryptCert(email,cert);

    success = CkMailMan_SendEmail(mailman,email);
    if (success != TRUE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
    }
    else {
        printf("Encrypted Mail Sent!\n");
    }



    CkMailMan_Dispose(mailman);
    CkEmail_Dispose(email);
    CkCert_Dispose(cert);

    }