Objective-C

Load Base64-encoded X.509 Certificate (.cer)

See more Certificates Examples

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert. Objective-C

#import <CkoCert.h>

BOOL success = NO;

CkoCert *cert = [[CkoCert alloc] init];

//  LoadFromFile will load virtually any certificate format file.
//  It will auto-recognize the format and load appropiately.
//  A base64-encoded DER X.509 certificate file
//  contains the binary DER in base64 encoded form.
//  Therefore, it is a text file that will begin like this:
//  -----BEGIN CERTIFICATE-----
//  MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
//  EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
//  ...

success = [cert LoadFromFile: @"/Users/chilkat/testData/cer/chilkat_base64.cer"];
if (success != YES) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

//  DN = "Distinguished Name"
NSLog(@"%@%@",@"SubjectDN:",cert.SubjectDN);

NSLog(@"%@%@",@"Common Name:",cert.SubjectCN);
NSLog(@"%@%@",@"Issuer Common Name:",cert.IssuerCN);

NSLog(@"%@%@",@"Serial Number:",cert.SerialNumber);