Objective c 使用cocoa获取Mac OS X当前连接的wifi网络的安全类型

我需要找到Mac上当前连接的网络的安全类型（ex-WPA2，WEP）。 我的目标是MacOS10.3。似乎可以使用scdynamicStoreAPI实现这一点。然而，我找不到解决这个问题的方法。此外，我需要提交应用到Mac应用商店，因此不想去任何私人代码。任何指针或示例代码都将非常有用。 提前谢谢

#import <CoreWLAN/CoreWLAN.h>

CWInterface* wifi = [[CWWiFiClient sharedWiFiClient] interface];
NSString *securityType = [wifi security];// this is given you  enum(some number) and u can do function that return the correct string with the name according this enum

typedef NS_ENUM(NSInteger, CWSecurity)
{
    kCWSecurityNone                 = 0,
    kCWSecurityWEP                  = 1,
    kCWSecurityWPAPersonal          = 2,
    kCWSecurityWPAPersonalMixed     = 3,
    kCWSecurityWPA2Personal         = 4,
    kCWSecurityPersonal             = 5,
    kCWSecurityDynamicWEP           = 6,
    kCWSecurityWPAEnterprise        = 7,
    kCWSecurityWPAEnterpriseMixed   = 8,
    kCWSecurityWPA2Enterprise       = 9,
    kCWSecurityEnterprise           = 10,
    kCWSecurityUnknown              = NSIntegerMax,
} NS_ENUM_AVAILABLE_MAC(10_7);