Exercises Section 4.2. RSA Digital Signatures 4.1. Samantha uses the RSA signature scheme with primes p = 541 and q = 1223 and public verification exponent e= 159853. (a) What is Samantha's public modulus? What is her private signing key? (b) Samantha signs the digital document D 630579. What is the signature? 4.2. Samantha uses the RSA signature scheme with public modulus N = 1562501 and public verification exponent e = 87953. Adam claims that Samantha has signed each of the documents D = 119812, D'= 161153, D" 586036, and that the associated signatures are S = 876453, S' = 870099, S" = 602754. %3! %3D Which of these are valid signatures?

Computer Networking: A Top-Down Approach (7th Edition)
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Exercises
Section 4.2. RSA Digital Signatures
4.1. Samantha uses the RSA signature scheme with primes p = 541 and q = 1223
and public verification exponent e= 159853.
(a) What is Samantha's public modulus? What is her private signing key?
(b) Samantha signs the digital document D 630579. What is the signature?
4.2. Samantha uses the RSA signature scheme with public modulus N = 1562501
and public verification exponent e = 87953. Adam claims that Samantha has signed
each of the documents
D = 119812, D' = 161153, D" = 586036,
%3D
%3D
and that the associated signatures are
S = 876453, s' = 870099, s" = 602754.
Which of these are valid signatures?
Transcribed Image Text:Exercises Section 4.2. RSA Digital Signatures 4.1. Samantha uses the RSA signature scheme with primes p = 541 and q = 1223 and public verification exponent e= 159853. (a) What is Samantha's public modulus? What is her private signing key? (b) Samantha signs the digital document D 630579. What is the signature? 4.2. Samantha uses the RSA signature scheme with public modulus N = 1562501 and public verification exponent e = 87953. Adam claims that Samantha has signed each of the documents D = 119812, D' = 161153, D" = 586036, %3D %3D and that the associated signatures are S = 876453, s' = 870099, s" = 602754. Which of these are valid signatures?
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