LifeLock Inc. announced Monday it was planning a $100 million share repurchase program. LifeLock (NYSE: LOCK), the Tempe-based identity theft protection provider, said the program represents 7 percent of the company’s outstanding common shares based on current trading prices. The program, approved by the company's board, does not have an expiration date but is intended to be completed by the end of 2016, according to the company. “This share repurchase program reflects the board’s confidence…