4. Using the EIGamal cryptosystem, create and encrypt a message for me. The plaintext message must be a recognizable word or phrase and at least eight alphabetic characters long. Divide the numerical plaintext into two digit blocks. Use a unique ephemeral key (0) to enerypt each block. My publie key is (89, 14, 8).
4. Using the EIGamal cryptosystem, create and encrypt a message for me. The plaintext message must be a recognizable word or phrase and at least eight alphabetic characters long. Divide the numerical plaintext into two digit blocks. Use a unique ephemeral key (0) to enerypt each block. My publie key is (89, 14, 8).
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...
Related questions
Question
Question 4 please question 4
![---
**1259 0854 1647 1139**
**Determine the plaintext message.**
4. Using the ElGamal cryptosystem, create and encrypt a message for me. The plaintext message must be a recognizable word or phrase and at least eight alphabetic characters long. Divide the numerical plaintext into two-digit blocks. Use a unique ephemeral key (\( j \)) to encrypt each block. My public key is (89, 14, 8).
5. The following two lines of ciphertext were created using a Verman cipher and Baudot code.
```
01011 11010 00110 10110 01001 01100 10101 10111 01111 10011
00001 00111 11010 00011 11000 01000 00001 01101 10101 10011
```
Using the first line of Chapter 2 in our textbook as the key, determine the plaintext message.
6. The ciphertext
```
HAGO UM MHE UFUOM!
```
was encrypted using a Hill Cipher of the form:
\[
C_1 \equiv 5P_1 + 3P_2 \pmod{26}
\]
\[
C_2 \equiv 7P_1 + 8P_2 \pmod{26}
\]
Decrypt the message.
---](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fadf70025-15e9-4d93-968e-9d86049b61bd%2F118f3bea-6ca0-45a4-8161-227809d82b85%2Fd23fu1.jpeg&w=3840&q=75)
Transcribed Image Text:---
**1259 0854 1647 1139**
**Determine the plaintext message.**
4. Using the ElGamal cryptosystem, create and encrypt a message for me. The plaintext message must be a recognizable word or phrase and at least eight alphabetic characters long. Divide the numerical plaintext into two-digit blocks. Use a unique ephemeral key (\( j \)) to encrypt each block. My public key is (89, 14, 8).
5. The following two lines of ciphertext were created using a Verman cipher and Baudot code.
```
01011 11010 00110 10110 01001 01100 10101 10111 01111 10011
00001 00111 11010 00011 11000 01000 00001 01101 10101 10011
```
Using the first line of Chapter 2 in our textbook as the key, determine the plaintext message.
6. The ciphertext
```
HAGO UM MHE UFUOM!
```
was encrypted using a Hill Cipher of the form:
\[
C_1 \equiv 5P_1 + 3P_2 \pmod{26}
\]
\[
C_2 \equiv 7P_1 + 8P_2 \pmod{26}
\]
Decrypt the message.
---
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Recommended textbooks for you
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 Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
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 Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
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
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY