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Find the solution of x^2≡ 15 mod 23 has a solution.(a) True(b) FalseThis question was addressed to me in homework.This key question is from Number Theory topic in portion More Number Theory of Cryptograph & Network Security

Answer»

The correct CHOICE is (B) False

The EXPLANATION: a=15(15)^((23-1)/2)≡(15)^11≡-1(QNR and no solution).



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