Apple rehires top crpytography expert for stronger encryption

The political debate over encrypted technology continues. (AP Photo)
Apple Inc, which has resisted pressure from US law enforcement to unlock encrypted iPhones, this month rehired a top expert in practical cryptography to bring more powerful security features to a wide range of consumer products.
Jon Callas, who co-founded several well-respected secure communications companies including PGP Corp, Silent Circle and Blackphone, rejoined Apple in May, an Apple spokesman said.
Callas had worked at