keychain returns nil

[rashidasgari]

Hi, I got this weird problem, When i wanna retrieve from keychain it works fine, but just after that when i wanna do it again in another class i get nil.

this is how i call it:
keyChain = [UICKeyChainStore keyChainStoreWithService:@"myapp.Login"];

[kishikawakatsumi]

It seems too strange. Could you please share reproducible project for further investigation?

[rashidasgari]

@kishikawakatsumi Since the project is for a client of mine i cannot share any code. But the line i shared is how i access the keychainstore in both classes.

[rashidasgari]

I am still having problem with this on ios9.

[melochale]

Hi guys, I met this problem by using SSKeychain(another keychain wrapper). Here it is the link soffes/SAMKeychain#75 of related github issue.

[rashidasgari]

@melote thanks melo, this problem happen to strike me from time to time and i havnt been able to find any solution to it. Tried almost everything and im starting to think that its related to iOS9.

[melochale]

Hi @rashidasgari , I was the same and I can't find any reason or solution, I met this problem on ios 8.4.x recently as well. sometimes it returned nil, otherwise it's ok most of the time.

[rashidasgari]

@melote Its getting a bit frustrating. @kishikawakatsumi did you have any luck simulating this yet?

[rashidasgari]

This seems like a bug in keychain. Another bunch of people are having the exactly same problem with another wrapper: nicklockwood/FXKeychain#18

[rashidasgari]

@kishikawakatsumi I just found out that this behavior only happens when the device is connected to my computer and im running the app directly from xcode.

[hellChine]

I have the same problem . I use the NSUserDefaults and UICKeyChainStore now。

[gbau]

Like @rashidasgari, I'm experiencing this problem only when running from xcode. I'm using v2.1.0. @kishikawakatsumi any luck reproducing on your end?

[kunwarr]

@kishikawakatsumi I am facing the same issue as describe by everyone. Earlier it was just when i connect to Xcode, now its all the time.

[zhihuitang]

ios 9.x, swift 2.0, same problem with me :(

[PrakashMaharjan]

Have anybody found solution for this issue? If yes please share here..
thanks

[sroelli]

Adding the "Share keychain entitlement" worked for me.
https://forums.developer.apple.com/message/170381#170381

[kishikawakatsumi]

Please add code signing entitlements to the app. From iOS 10, entitlements file is always needed for writing Keychain even without sharing.