1.

Find the inverse of (x^5) modulo (x^8+x^4 +x^3+ x + 1).(a) x^5+ x^4+ x^3+x+1(b) x^5+ x^4+ x^3(c) x^5+ x^4+ x^3+1(d) x^4+ x^3+x+1I had been asked this question in my homework.The above asked question is from Polynomial and Modular Arithmetic topic in portion Basic Concepts in Number Theory and Finite Fields of Cryptograph & Network Security

Answer»

Right CHOICE is (c) X^5+ x^4+ x^3+1

The BEST explanation: Finding the inverse with respect to (x^8+x^4 +x^3+ x + 1) we get x^5+ x^4+ x^3+1 as the inverse.



Discussion

No Comment Found

Related InterviewSolutions