I have many iOS applications live on AppStore. Now for next version of apps, I want to keep a piece of data for every application to share in KeyChain. As far as I know I need to provide same Keychain access group in Apple's KeychainItemWrapper class.
*keychain = [[KeychainItemWrapper alloc] initWithIdentifier:@"Any string" accessGroup:<string representing access group>];
I know about custom URLs and it is of no use as I want data to be persistent.
All my applications have different bundle seed ID as I can see from provisioning portal. I know that the main pre-requisite for shared keychain access is that all of the applications have a common bundle seed ID.
Now my question is how do I make sure that in this senario I can use Keychain to share data among all these applications ?
Is it possible to change the bundle seed ID of all applications through Provisioning profile portal without doing any harm to any functionality ( Although I want to avoid that as there are so many apps).
Is there a way I can add bundle seed ID of all apps in a file and build all apps with that file in project to achieve this ? I know about "keychain-access-groups", do i need to create a plist file and add bundle seed ID of all application in it ?
Appreciate any help in this regard.