11) Suppose you are using RSA (with modulus n = p q and encrypting exponent e),...
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11) Suppose you are using RSA (with modulus n = p q and encrypting exponent e), but you decide to restrict your message to number m satisfying m1000 = 1 mod n a. Show that if d satisfies de = 1 mod 1000, then d works as a decryption exponent for these messages b. Assume that both p and q are congruent to 1 mod 1000. Determine how many messages satisfy m1000 = 1 mod. You may assume and use the fact that 1000 = 1 mod r has 1000 solutions when r is a prime congruent to 1 mod 1000 with m 11) Suppose you are using RSA (with modulus n = p q and encrypting exponent e), but you decide to restrict your message to number m satisfying m1000 = 1 mod n a. Show that if d satisfies de = 1 mod 1000, then d works as a decryption exponent for these messages b. Assume that both p and q are congruent to 1 mod 1000. Determine how many messages satisfy m1000 = 1 mod. You may assume and use the fact that 1000 = 1 mod r has 1000 solutions when r is a prime congruent to 1 mod 1000 with m
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Related Book For
Social Statistics For A Diverse Society
ISBN: 9781483333540
7th Edition
Authors: Chava Frankfort Nachmias, Anna Leon Guerrero
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