IOS UUID

- (NSString *)createUUID


{
  // Create universally unique identifier (object)


  CFUUIDRef uuidObject = CFUUIDCreate(kCFAllocatorDefault);


  // Get the string representation of CFUUID object.


  NSString *uuidStr = [(NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuidObject) autorelease];


  // If needed, here is how to get a representation in bytes, returned as a structure


  // typedef struct {


  //   UInt8 byte0;


  //   UInt8 byte1;


  //   ...


  //   UInt8 byte15;


  // } CFUUIDBytes;


  CFUUIDBytes bytes = CFUUIDGetUUIDBytes(uuidObject);

  CFRelease(uuidObject);

  return uuidStr;

}