Keychain更安全的存储数据

我们已存住用户登陆账号与密码为例

初始化KeychainItemWrapper *keychainItem = [[KeychainItemWrapper alloc] initWithIdentifier:@"YourAppLogin" accessGroup:nil];

//存储[keychainItem setObject:@"password you are saving" forKey:kSecValueData];[keychainItem setObject:@"username you are saving" forKey:kSecAttrAccount];

//获取NSString *password = [keychainItem objectForKey:kSecValueData];NSString *username = [keychainItem objectForKey:kSecAttrAccount];

//删除[keychainItem resetKeychainItem];

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