(Objective-C) Authenticode Sign an Executable (EXE) or DLL

See more Code Signing Examples

Demonstrates how to Authenticode sign an EXE or DLL.

Note: Chilkat's code signing class was added in v9.5.0.97

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#import <CkoJsonObject.h>
#import <CkoCert.h>
#import <NSString.h>
#import <CkoCodeSign.h>

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

BOOL success;

// First create the following JSON to specify that SHA256 is to be used,
// and provide timestamp server information.

// {
//   "hashAlg": "sha256",
//   "timestampToken": {
//     "enabled": true,
//     "tsaUrl": "http://timestamp.digicert.com",
//     "requestTsaCert": true,
//     "hashAlg": "sha256"
//   }
// }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"hashAlg" value: @"sha256"];
[json UpdateBool: @"timestampToken.enabled" value: YES];
[json UpdateString: @"timestampToken.tsaUrl" value: @"http://timestamp.digicert.com"];
[json UpdateBool: @"timestampToken.requestTsaCert" value: YES];
[json UpdateString: @"timestampToken.hashAlg" value: @"sha256"];

// Load a code signing certificate..
CkoCert *cert = [[CkoCert alloc] init];
success = [cert LoadPfxFile: @"C:/someDir/myCodeSigningCert.pfx" password: @"pfx password"];
if (success == NO) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

// You can sign .exe or .dll files.
NSString *exePath = @"C:/someOtherDir/HelloWorld.exe";

CkoCodeSign *signer = [[CkoCodeSign alloc] init];

// If successful, the following call will apply the signature to the EXE (or DLL).
success = [signer AddSignature: exePath cert: cert options: json];
if (success == NO) {
    NSLog(@"%@",signer.LastErrorText);
    return;
}

NSLog(@"%@",@"Successfully applied the Authenticode signature.");