Objective-C

Use a Custom Set of Trusted Root Certificates

See more Certificates Examples

Demonstrates how to build a set of trusted root certificates to be used globally by all Chilkat classes. Objective-C

#import <CkoTrustedRoots.h>
#import <CkoZip.h>
#import <CkoZipEntry.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.

CkoTrustedRoots *trustedRoots = [[CkoTrustedRoots alloc] init];

//  Indicate that we will NOT trust any pre-installed certificates on the system.
trustedRoots.TrustSystemCaRoots = NO;

// Thawte is a certificate authority that provides a .zip download of their
// root CA certificates:  https://www.thawte.com/roots/index.html
// The direct download link is: https://www.verisign.com/support/thawte-roots.zip
// Note: The above URLs are valid at the time of writing this example (29-May-2015).

// Assuming the .zip has already been downloaded, open it and load each .pem file into
// our trusted roots object.
CkoZip *zip = [[CkoZip alloc] init];

// Open a .zip containing PEM files, among other things..
success = [zip OpenZip: @"qa_data/certs/thawte-roots.zip"];
if (success == NO) {
    NSLog(@"%@",zip.LastErrorText);
    return;
}

CkoZipEntry *entry = [[CkoZipEntry alloc] init];
NSString *pemStr = 0;
CkoCert *cert = [[CkoCert alloc] init];

NSString *pattern = @"*.pem";
BOOL bHasMoreEntries = [zip EntryMatching: pattern entry: entry];
while (bHasMoreEntries == YES) {

    NSLog(@"%@%@",@"Entry: ",entry.FileName);

    // Get the PEM of the CA cert:
    pemStr = [entry UnzipToString: [NSNumber numberWithInt: 0] srcCharset: @"utf-8"];

    // Load it into a certificate object:
    success = [cert LoadPem: pemStr];
    if (success != YES) {
        NSLog(@"%@",cert.LastErrorText);
    }

    // Add it to the trusted roots.
    [trustedRoots AddCert: cert];

    bHasMoreEntries = [entry GetNextMatch: pattern];
}

//  Activate the trusted roots globally for all Chilkat objects.
//  This call really shouldn't fail, so we're not checking the return value.
success = [trustedRoots Activate];