s ▁with ▁multiple ▁nomin ations ▁▁ 1 0 ▁nomin ations ▁ ▁American ▁Masters ▁▁ 4 ▁nomin ations ▁ ▁Anthony ▁Bour d ain : ▁Part s ▁Un known ▁▁ 2 ▁nomin ations ▁ ▁America ▁Under cover ▁ ▁Anthony ▁Bour d ain : ▁No ▁Res erv ations ▁ ▁Planet ▁Earth ▁II ▁ ▁This ▁American ▁Life ▁ ▁Vice ▁ ▁The ▁War ▁ ▁Notes ▁ ▁References ▁ ▁Picture ▁Edit ing ▁for ▁a ▁Non f iction ▁Program <0x0A> </s> ▁Information - the or etic ▁security ▁is ▁a ▁crypt os ystem ▁whose ▁security ▁der ives ▁purely ▁from ▁information ▁theory ; ▁the ▁system ▁cannot ▁be ▁broken ▁even ▁if ▁the ▁advers ary ▁has ▁un limited ▁computing ▁power . ▁The ▁crypt os ystem ▁is ▁considered ▁crypt anal yt ically ▁un break able ▁if ▁the ▁advers ary ▁does ▁not ▁have ▁enough ▁information ▁to ▁break ▁the ▁encryption . ▁ ▁Over view ▁▁ ▁An ▁encryption ▁protocol ▁with ▁information - the or etic ▁security ▁does ▁not ▁depend ▁for ▁its ▁effect iveness ▁on ▁un pro ven ▁assumptions ▁about ▁computational ▁hard ness . ▁Such ▁a ▁protocol ▁is ▁not ▁vulner able ▁to ▁future ▁develop ments ▁in ▁computer ▁power ▁such ▁as ▁quantum ▁computing . ▁An ▁example ▁of ▁an ▁information - the oret ically ▁secure ▁crypt os ystem ▁is ▁the ▁one - time ▁pad . ▁The ▁concept ▁of ▁information - the oret ically ▁secure ▁communication ▁was ▁introduced ▁in ▁ 1 9 4 9 ▁by ▁American ▁math ematic ian ▁Claude ▁Sh annon , ▁the ▁invent or ▁of ▁information ▁theory , ▁who ▁used ▁it ▁to ▁prove ▁that ▁the ▁one - time ▁pad ▁system