(Objective-C) Windows Credentials Manager / Apple Keychain - Get a Binary Secret

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On Windows, fetches the content of a binary secret from the Windows Credentials Manager.

On MacOS or iOS, fetches from the Apple Keychain.

Note: This example requires Chilkat v10.1.0 or later.

For more information, see https://cknotes.com/chilkat-secrets-class-added-in-version-10-1-0/

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#import <CkoSecrets.h>
#import <CkoJsonObject.h>
#import <CkoBinData.h>

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

CkoSecrets *secrets = [[CkoSecrets alloc] init];

// On Windows, this is the Windows Credentials Manager
// On MacOS/iOS, it is the Apple Keychain
secrets.Location = @"local_manager";

// Specify the secret to be fetched.
CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"appName" value: @"Test2"];
[json UpdateString: @"service" value: @"Custom"];
[json UpdateString: @"domain" value: @"Ocean"];
[json UpdateString: @"username" value: @"Starfish"];

// Get the binary secret data.
CkoBinData *bd = [[CkoBinData alloc] init];
BOOL success = [secrets GetSecretBd: json bd: bd];
if (success == NO) {
    NSLog(@"%@",secrets.LastErrorText);
    return;
}

// For our testing, the binary secret was a JPG image..
[bd WriteFile: @"c:/temp/qa_output/starfish.jpg"];

NSLog(@"%@",@"Success.");