Objective-C

Find Certificate for Email Encryption

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

#import <CkoMailMan.h>
#import <CkoEmail.h>
#import <NSString.h>
#import <CkoCert.h>

BOOL success = NO;

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

CkoMailMan *mailman = [[CkoMailMan alloc] init];

//  Set the SMTP server.
mailman.SmtpHost = @"smtp.example.com";

//  Create a new email object
CkoEmail *email = [[CkoEmail alloc] init];

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.
NSString *recipientEmailAddr = @"jane@example2.com";
[email AddTo: @"Jane" emailAddress: recipientEmailAddr];

//  Indicate that the email is to be sent encrypted.
email.SendEncrypted = YES;

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

CkoCert *cert = [[CkoCert alloc] init];
//  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 LoadByEmailAddress: recipientEmailAddr];
if (success != YES) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

//  Specify the certificate to be used for encryption.
success = [email SetEncryptCert: cert];

success = [mailman SendEmail: email];
if (success != YES) {
    NSLog(@"%@",mailman.LastErrorText);
}
else {
    NSLog(@"%@",@"Encrypted Mail Sent!");
}