Question 1 a and b show work AudreyEXERCISES91, her encryption exponent is1. Suppose Alice's RSA modulus is ma =eA = 7, and her decryption exponent is da = 31.(a) Alice wants to sign the message x = 21. Calculate her signature.sent; if u # v, the is unacceptable. 313he regard the pair as likely to be authentic, or does he know that%3Dthe pair has been altered?2 Suppose that Alice's RSA parameters are those given in Exercise 1 andthat Bob's RSA modulus is mB = 187.13 and Alice wants to encrypt the(a) If Bob's public exponent is eBmessage-signature pair (x, o) = (70, 21), calculate her encryptedpair.%3D37 and he receives the en-(b) If Bob's private exponent is dBciphered message-signature pair (11, 69), what are the originalplaintext and signature? Is this a valid message-signature pair?%3D

As i have read guidelines i can provide answer of only 1 part of questions in case of multiple…

Answered: 1 Suppose Alice's RSA modulus is ma =…

1 Suppose Alice's RSA modulus is ma = 91, her encryption exponent is eA = 7, and her decryption exponent is dA = 31. (a) Alice wants to sign the message x = 21. Calculate her signature.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Question 1 a and b show work

Audrey
EXERCISES
91, her encryption exponent is
1. Suppose Alice's RSA modulus is ma =
eA = 7, and her decryption exponent is da = 31.
(a) Alice wants to sign the message x = 21. Calculate her signature.
sent; if u # v, the is unacceptable.

313
he regard the pair as likely to be authentic, or does he know that
%3D
the pair has been altered?
2 Suppose that Alice's RSA parameters are those given in Exercise 1 and
that Bob's RSA modulus is mB = 187.
13 and Alice wants to encrypt the
(a) If Bob's public exponent is eB
message-signature pair (x, o) = (70, 21), calculate her encrypted
pair.
%3D
37 and he receives the en-
(b) If Bob's private exponent is dB
ciphered message-signature pair (11, 69), what are the original
plaintext and signature? Is this a valid message-signature pair?
%3D

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