Homework Help is Here – Start Your Trial Now!
Engineering
Computer Engineering
In thc Gibson schemc, the modulus N = p x ą is public, whilc its factors arc sccrct. The hashing function is defined as h(m) 9" mod N whcre g is a gcncrator of thc cyclic group Z. Let N = 4897 and 9 2231. Compute digests for the following two mcssages: 75676. Assumc that you have two colliding mcssages, show that it is possible to find factors ofN. Dcmonstrate that the knowledge of factors of N, allows m = 132748 and m' to find colliding messagcs.

In thc Gibson schemc, the modulus N = p x ą is public, whilc its factors arc sccrct. The hashing function is defined as h(m) 9" mod N whcre g is a gcncrator of thc cyclic group Z. Let N = 4897 and 9 2231. Compute digests for the following two mcssages: 75676. Assumc that you have two colliding mcssages, show that it is possible to find factors ofN. Dcmonstrate that the knowledge of factors of N, allows m = 132748 and m' to find colliding messagcs.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
See similar textbooks
icon
Related questions
Question

7)

7. In the Gibson scheme, the modulus N = p x q is public, whilc its factors are secret. The hashing function is defined as h(m) = 9 mod N wherc g is a gencrator of the cyclic group Z. Let N = 4897 and 9 = 2231. Computc digests for thc following two mcssages: m = 132748 and m' = 75676. Assumc that you have two colliding mcssages, show that it is possible to find factors of N. Dcmonstrate that thc knowledge of factors of N, allows to find colliding mcssagcs.
Transcribed Image Text:7. In the Gibson scheme, the modulus N = p x q is public, whilc its factors are secret. The hashing function is defined as h(m) = 9 mod N wherc g is a gencrator of the cyclic group Z. Let N = 4897 and 9 = 2231. Computc digests for thc following two mcssages: m = 132748 and m' = 75676. Assumc that you have two colliding mcssages, show that it is possible to find factors of N. Dcmonstrate that thc knowledge of factors of N, allows to find colliding mcssagcs.
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY
SEE MORE TEXTBOOKS