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2. The following ciphertext message was encrypted using Vigenére Cipher cipher with keyword JEDI. MS. RZ MS QWC. XKMAI LA WS WZH.

2. The following ciphertext message was encrypted using Vigenére Cipher cipher with keyword JEDI. MS. RZ MS QWC. XKMAI LA WS WZH.

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...
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**Cryptography Exercise** 1. **Ciphertext Example:** The following excerpt from a message: ``` SMRER TL CJ LQJJC ``` 2. **Vigenère Cipher Challenge:** The ciphertext message was encrypted using the Vigenère Cipher with the keyword "JEDI": ``` MS. RZ MS QWC. XKMAI LA WS WZH. ``` *Determine the plaintext message.* 3. **RSA Encryption Challenge:** The following ciphertext message was encrypted using the RSA algorithm and public key (2021,97): ``` 1259 0854 1647 1139 ``` *Determine the plaintext message.* 4. **ElGamal Cryptosystem Task:** 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. **Verman Cipher and Baudot Code Exercise:** The following two lines of ciphertext were created using a Verman cipher and Baudot code: ``` 01011 11010 00110 10110 01001 01100 10101 10011 00011 01011 10110 00001 11000 00000 01101 10101 10011 ``` Using the first line of Chapter 2 in our textbook as the key, determine the plaintext message. 6. **Ciphertext Message:** ``` HAGO UM MHE UFUOM! ``` **Note:** For specific methodologies and decoding strategies, refer to the corresponding chapters in your textbook or research related cryptographic techniques.
Transcribed Image Text:**Cryptography Exercise** 1. **Ciphertext Example:** The following excerpt from a message: ``` SMRER TL CJ LQJJC ``` 2. **Vigenère Cipher Challenge:** The ciphertext message was encrypted using the Vigenère Cipher with the keyword "JEDI": ``` MS. RZ MS QWC. XKMAI LA WS WZH. ``` *Determine the plaintext message.* 3. **RSA Encryption Challenge:** The following ciphertext message was encrypted using the RSA algorithm and public key (2021,97): ``` 1259 0854 1647 1139 ``` *Determine the plaintext message.* 4. **ElGamal Cryptosystem Task:** 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. **Verman Cipher and Baudot Code Exercise:** The following two lines of ciphertext were created using a Verman cipher and Baudot code: ``` 01011 11010 00110 10110 01001 01100 10101 10011 00011 01011 10110 00001 11000 00000 01101 10101 10011 ``` Using the first line of Chapter 2 in our textbook as the key, determine the plaintext message. 6. **Ciphertext Message:** ``` HAGO UM MHE UFUOM! ``` **Note:** For specific methodologies and decoding strategies, refer to the corresponding chapters in your textbook or research related cryptographic techniques.
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