配置密钥链

MSALPublicClientApplicationConfig *config = [[MSALPublicClientApplicationConfig alloc] initWithClientId:@"your-client-id"
                                                                                            redirectUri:@"your-redirect-uri"
                                                                                              authority:nil];
    
config.cacheConfig.keychainSharingGroup = @"custom-group";
    
MSALPublicClientApplication *application = [[MSALPublicClientApplication alloc] initWithConfiguration:config error:nil];
    
// Now call `acquiretoken`. 
// Tokens will be saved into the "custom-group" access group
// and only shared with other applications declaring the same access group

let config = MSALPublicClientApplicationConfig(clientId: "your-client-id",
                                            redirectUri: "your-redirect-uri",
                                              authority: nil)
config.cacheConfig.keychainSharingGroup = "custom-group"
        
do {
  let application = try MSALPublicClientApplication(configuration: config)
  // continue on with application          
} catch let error as NSError {
  // handle error here
}       

config.cacheConfig.keychainSharingGroup = [[NSBundle mainBundle] bundleIdentifier];

if let bundleIdentifier = Bundle.main.bundleIdentifier {
    config.cacheConfig.keychainSharingGroup = bundleIdentifier
}