I threw together an iOS app that would do a binary search using this library to interact with the keychain, and determined that the most I could store was an NS(Mutable)String with length 16,777,110. So noticeably less than either the max length of an NSString or the default value of SQLITE_MAX_LENGTH as suggested in other … Read more
OK so I worked this out finally. Eventually I worked out the users who were having problems had set a lock code on their phone. If the phone was locked the keychain system was returning this -25308 error. If you only ever need to access the keychain when the app is active in the forground … Read more
Okay, I found the solution in this blog post Keychain duplicate item when adding password To sum it up, the issue is that the GenericKeychain sample app uses the value stored in kSecAttrGeneric key as the identifier for the keychain item when in fact that is not what the API uses to determine a unique … Read more
You can only request one development certificate per user. Either log in as the user you want to request a certificate for, or remove the existing certificate(s) for the user you are logged in as. No need to delete everything.
I dug around on the Apple developer forums, and a Apple developer (eskimo1, aka Quinn) states at 2012-08-27 that this is the current behaviour but it’s a far as he knows not /documented/ behaviour, so this might change in the future. He also says that deleting shared keychain items is always going to be tricky, … Read more
Yes, this is the expected and correct behavior. Some keychain items may be shared with other apps you control (that share the same keychain item access group). You should just leave the info alone when your app is removed. You have no callback or method of removing the keychain items on deletion of your app.
I found a solution for that. If that error occurs, only you have to do is just lock the keychain (click on lock in the left upper most corner). Then build again. It will ask to unlock again like first time and Let you to choose always allow or allow or deny in Codesign keychain … Read more
OK, I had this exact problem and have searched the internet far and wide for a clear description of what you should do to resolve this. I know this is an old topic, but I’m going to write this for the people who may stumble across this in their seemingly hopeless search for an answer. … Read more
We do exactly that in our of our apps and it works great.It’s a free app that you can upgrade to a full version and we store the upgrade indicator in the keychain. The upgrade indicator is an arbitrary string that you choose, but for the purposes of the keychain it is treated as a … Read more
The System keychain is for System wide items. So if you were to have an identity for you laptop, that would be in your System keychain. Every user has access to it as well, so it’s a good place for things like SSL certificates. It also takes admin credentials modify it. On the flip side, … Read more