iOS唯一设备标识策略

1.CFUUID

1 - (NSString *)cfuuid {
2     CFUUIDRef uuid_ref = CFUUIDCreate(kCFAllocatorDefault);
3     NSString *uuid = CFBridgingRelease(CFUUIDCreateString(kCFAllocatorDefault, uuid_ref));
4     CFRelease(uuid_ref);
5     return uuid;
6 }

iOS5- UDID Unique Device Identifier NSString *udid = [[UIDevice currentDevice] uniqueIdentifier];

1）从iOS5.0（2011-08）开始，苹果宣布不再支持用uniqueIdentifier方法获取设备的UDID；

2）在2013-03-21日苹果通知开发者：从2013-05-01起，使用UDID的程序不再被审核通过；

UUID Universally Unique Identifier (CFUUID NSUUID)

OPEN UDID NSString *openUDID = [OpenUDID value];

iOS6+

IDFA-identifierForIdentifier NSString *adId = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString]

IDFV-identifierForVendor NSString *idfv = [[[UIDevice currentDevice] identifierForVendor] UUIDString];

iOS7+ MAC Address "02:00:00:00:00:00"

推送token + bundleid

KeyChain

时常一个人发呆，看到宁静的天空。