nitroterew.blogg.se - Keychain access on iphone

#Keychain access on iphone update#
#Keychain access on iphone code#
#Keychain access on iphone password#
#Keychain access on iphone license#

Same app, different cert, different provisioning profile = empty keychain.

#Keychain access on iphone code#

I changed the code signing identity by selecting a totally different distribution profile that I mistook as a renewed/valid version of the expiring distribution profile, and submitted an update. Provisioning profiles across multiple iOS developer program accounts are apparently all stored together in ~/Library/MobileDevice/Provisioning Profiles, so they are all candidates for XCode's automatic profile selection feature. The 1st certificate and profile were leftover from when a developer used a different iOS Developer Program account to develop an unrelated app (on the same machine, with the same OSX user). ipas submitted to apple revealed that an expiring certificate and provisioning profile were used to sign version x of the app, and a different certificate and provisioning profile was used to sign version x+1 of the app (culprit: "Automatic Profile Selector" feature of XCode for the Code Signing Identity). Looking at the embedded.mobileprovision file in each of the.

#Keychain access on iphone update#

My question is: does renewing the provisioning profile used to sign an app affect keychain access when the renewed profile is used to submit an update to the app? The docs just say to use "the same provisioning profile", but is unclear about whether a renewed profile counts as a different profile (as my experience described above suggests). Provisioning profile across different versions of your application.īecause my Provisioning Profile was expiring, I renewed it (in the provisioning portal), downloaded it, and double-clicked it which "installed" it into XCode's organizer.Īfter submitting an update to the app to the app store, I'm basically seeing an empty keychain (user's are being asked to log in again). On iPhone, Keychain rights depend on the provisioning profile used to In the documentation for keychain access it states: I also had an expiring Provisioning Profile.

#Keychain access on iphone password#

Now with the search dictionary set up we call the SecItemCopyMatching function and if our item exists in the keychain the value of the password is returned to in the NSData block.I have an iPhone app that uses the keychain for authentication-related storage. If we were storing and searching for a keychain item with multiple attributes (for example if we were storing an account name and password in the same keychain item) we would need to add the attribute kSecReturnAttributes and the result would be a dictionary of attributes. This means we will get an NSData reference back that we can access directly. Since in our simple case we are expecting only a single attribute to be returned (the password) we can set the attribute kSecReturnData to kCFBooleanTrue. The next attribute determines how the result is returned. We are looking for a single entry so we set the attribute kSecMatchLimit to kSecMatchLimitOne. The first attribute we add to the dictionary is to limit the number of search results that get returned. Static NSString * serviceName = - ( NSMutableDictionary * ) newSearchDictionary: ( NSString * ) identifier So the first thing we will do is define a function to allocate and construct this dictionary for us: The Basic Search DictionaryĪll of the calls to the keychain services make use of a dictionary to define the attributes of the keychain item you want to find, create, update or delete. Also it will only work on the device not in in the iPhone Simulator. Note that the security framework is a good old fashioned C framework so no Objective-C style methods calls.

Add the amework framework to your iPhone application.

Getting StartedĪ couple of housekeeping items to get started: In fact all I really want to be able to do is securely store a password string for my application and be able to retrieve it a later date. Instead I have gone back to basics to build up a simple iPhone keychain access example that does just what I want and not much more. I hate to include cut and pasted code into my application, especially when I do not understand it. The only problem is that accessing the keychain services is complicated and even the GenericKeychain example code is hard to follow.

#Keychain access on iphone license#

This makes it very attractive to store sensitive data such as passwords, license keys, etc. The backup data is encrypted as part of the backup so that it remains secure even if somebody gets access to the backup data. Each iPhone application gets its own set of keychain items which are backed up whenever the user backs up the device via iTunes. The keychain is about the only place that an iPhone application can safely store data that will be preserved across a re-installation of the application.