Unique Identifier for Iphone

 

Unique Identifier for Iphone

Refer from UIClass in iphone sdk.

The UIDevice class provides a singleton instance representing the current device. From this instance you can obtain information about the device such as unique ID, assigned name, device model, and operating-system name and version.

Discussion
A device’s unique identifier (sometimes abbreviated as UDID for Unique Device Identifiier) is a hash value composed from various hardware identifiers such as the device serial number. It is guaranteed to be unique for each device. The UDID is independent of the device name. For devices that use a SIM (subscriber identity module) card, the UDID is independent of the SIM card.

For user security and privacy, you must not publicly associate a device’s unique identifier with a user account.

You may use the UDID, in conjunction with an application-specific user ID, for identifying application-specific data on your server. For example, you use could a device-user combination ID to control access to registered products or when storing high scores for a game in a central server. However, if you are developing a game, you may want to instead use Game Center’s player identifier key as explained in