Objective-C

Encrypt MIME using PEM Certificate

See more MIME Examples

Encrypt MIME using a PEM certificate. Objective-C

#import <CkoMime.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.

CkoMime *mime = [[CkoMime alloc] init];

//  Create a simple MIME message to be encrypted:
success = [mime AddHeaderField: @"Content-Type" value: @"text/plain"];
success = [mime AddHeaderField: @"abc" value: @"123"];
[mime SetBody: @"This is a test"];

CkoCert *cert = [[CkoCert alloc] init];
success = [cert LoadFromFile: @"qa_data/pem/mf_public_rsa.pem"];
if (success == NO) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

//  Encrypt the MIME.
success = [mime Encrypt: cert];
if (success == NO) {
    NSLog(@"%@",mime.LastErrorText);
    return;
}

//  Display the MIME:
NSLog(@"%@",[mime GetMime]);

//  The resulting S/MIME looks like this:

//  Content-Type: application/x-pkcs7-mime; name="smime.p7m"; smime-type="enveloped-data"
//  abc: 123
//  Content-Disposition: attachment; filename="smime.p7m"
//  Content-Transfer-Encoding: base64
//  
//  MIICMAYJKoZIhvcNAQcDoIICITCCAh0CAQAxggGoMIIBpAIBADCBizB3MQswCQYDVQQGEwJQTDEi
//  MCAGA1UEChMZVW5pemV0byBUZWNobm9sb2dpZXMgUy5BLjEnMCUGA1UECxMeQ2VydHVtIENlcnRp
//  ZmljYXRpb24gQXV0aG9yaXR5MRswGQYDVQQDExJDZXJ0dW0gTGV2ZWwgSVYgQ0ECEDVuXbie8bb5
//  sHeajm5k3ZYwDQYJKoZIhvcNAQEBBQAEggEADNac7gEUOvTWfyqwe0cS+m65Lte7ZmDGRElvqeo7
//  C2+JZJfuxl2Roy+4vTovnn+9U2Yf5Kqc1m2ZPCE5Q8ExvOV4M0cTocLNLK6sfCR7cvo1xgf220qf
//  XYqWF1/ePuP9j1FrkFvBOoS4BREAnXsEa4zvuhvNPsMfjInK8wWnMftbLUiriAZBq391D+dxxX8M
//  kB1EHCWaS3H8WQI/caTnkRS6YdOCOrctJHtotkcU+4gcIxfTcq6yeloceURbesAYAvdRbIGszKCQ
//  FA2sC1x8SkDQCHfNUvmyS/fmkq5waFpmq1ksOspInb4ZM7SOjEUu+22vkAgbTmOS3MUdieuRcTBs
//  BgkqhkiG9w0BBwEwHQYJYIZIAWUDBAECBBClRoHLQZyzdHwoZA6pZjLYgEChuMzbQRXOjNF3RpnI
//  ZjNTKFDuhaUqk0rRTTn3D89F7ZMUBtoCP0bw+bH5UE9zpDaAgCF9s3W3/D5YNgAuw4AZ