Cryptography Lecture 19 Exponentiation
Compute a b ǁa b ǁ Ob ǁaǁ Just writing down the answer takes exponential time Instead look at modular exponentiation Ie c ompute a b mod N Size of the answer lt
modulo modmodmodulogroupinvertiblegcdalgorithmcomputeelementsinverseintegerefficientlyanseuclideancomputingtime
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