StackOverflow2013

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17576604
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2013-07-10T16:59:46.093
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2013-07-10T16:59:46.093
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I had this problem also and solved it thanks to the accepter answer and the additional link to useyourloaf. The problem I had was interesting, I needed to save only one value and decided to store it in the field kSecValueData. That is because I saw other posts about using the keychain and started my own implementation before turning to KeychainItemWrapper. This caused the following issue: On the first device I was testing (iPad 1st gen) I was getting an error in writeToKeychain. I changed device (also ipad 1st gen) and it worked! Back to the first device it still didn't work. So I that point I knew that I had previously done something wrong in the device's keychain and couldn't revert it easily. The error codes I was getting were: -25300 on the writeToKeychain's SecItemCopyMatching (item not found) and right after -25299 on the SecItemAdd. (item duplicate) With this question, this all made sense: the device has a key that matches any new key but the KeychainItemWrapper cannot delete it but the key cannot be retrieved. As soon as I added the same value to the field kSecAttrAccount, it started working. Long story short, for other users having this problem, your problem might look different but pay attention to the details. If you have -25300 (item not found) followed by -25299 (item duplicate); make sure that you are setting a field that defines the uniqueness of your keychain item. If it doesn't work on one device, try another if you can you might be able to isolate the problem to one device. Apple keychain Error codes: <a href="http://developer.apple.com/library/ios/#documentation/Security/Reference/keychainservices/Reference/reference.html#//apple_ref/doc/uid/TP30000898-CH5g-CJBEABHG" rel="nofollow">http://developer.apple.com/library/ios/#documentation/Security/Reference/keychainservices/Reference/reference.html#//apple_ref/doc/uid/TP30000898-CH5g-CJBEABHG</a> (search for Result Codes)
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1. POError saving in the keychain with iphone sdk
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1. USKuoni
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