US9274774B2
patent
(51) Int. Cl. G06F 9/445 (2006.01) H04L 29/08 (2006.01) (52) U.S. Cl. CPC G06F 8/61 (2013.01); H04L 67/02 (2013.01); H04L 67/34 (2013.01); G06F 8/65 (2013.01) (58) Field of Classification Search
35 claims. 63,030 characters of text.