未在iOS 9 OSStatus -34018上加载KeychainItemWrapper(errSecMissingEntitlement) [英] KeychainItemWrapper not getting loaded on iOS 9 OSStatus -34018 (errSecMissingEntitlement)

问题描述

我一直在使用KeychainItemWrapper很好.但是由于我已经将手机更新为iOS 9，因此出于某种原因它不存储sessionID.

I've been using KeychainItemWrapper just fine. But since I've updated my phone to iOS 9, it doesn't store the sessionID for some reason.

    + (BOOL)createKeychainValue:(NSString *)value forIdentifier:(NSString *)identifier
{

    NSMutableDictionary *dictionary = [self setupSearchDirectoryForIdentifier:identifier];
    NSData *valueData = [value dataUsingEncoding:NSUTF8StringEncoding];
    [dictionary setObject:valueData forKey:(__bridge id)kSecValueData];

    // Protect the keychain entry so it's only valid when the device is unlocked at least once.
    [dictionary setObject:(__bridge id)kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly forKey:(__bridge id)kSecAttrAccessible];

    // **THIS LINE OF CODE RETURNS -34108**
    OSStatus status = SecItemAdd((__bridge CFDictionaryRef)dictionary, NULL);

    // If the addition was successful, return. Otherwise, attempt to update existing key or quit (return NO).
    if (status == errSecSuccess) {
        return YES;
    } else if (status == errSecDuplicateItem){
        return [self updateKeychainValue:value forIdentifier:identifier];
    } else {
        return NO; **The call returns here...**
    }
}

有人知道发生了什么吗?

Anybody know whats going on?

编辑

最奇怪的事情:它不时发生，并且始终处于调试模式.

Weirdest thing: it only happens from time to time and always in debug mode.

EDIT2

由于这仅在调试模式下发生，因此我通常会根据变量的类型执行两种解决方法: -始终保持本地从钥匙串加载的最后一个有效变量(例如sessionID)，并在调试模式下将其用作备份 -在调试时尽可能忽略无效值(在这种情况下，我将添加一个附加的控制变量以允许/禁止这些无效值)

As this only occurs in debug mode, there are two work arounds that I usually do depending on the type of variable: - Always keep the last valid variable loaded from the keychain locally (for instance a sessionID) and use it as a backup when in debug mode - Ignore invalid value(s) if possible when in debug (in this case I would add an additional control variable to allow/disallow these invalid value(s))

(使用#ifdef DEBUG检查您是否处于调试模式)

(use #ifdef DEBUG to check if you're in debug mode)

推荐答案

根据Apple的说法，目前没有解决方案. https://forums.developer.apple.com/thread/4743

According to Apple there is no solution right now. https://forums.developer.apple.com/thread/4743

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