Rail fence cipher decryption example

1). Using Java language implement the Rail Fence Cipher encryption algorithm.

2). Specifications: The program should take two inputs 1) Message n 2) The key k, which is a tuple (d,r), where d is the depth of the cipher and r is the number of times the algorithm should repeat itself. The program should produce as output the encrypted message as text.

3). What will be the decryption algorithm for a Rail-Fence cipher? Write down the pseudocode for the algorithm.

4). Using Java language implement the Rail Fence Cipher decryption algorithm.

5). Specifications: The program should take two inputs 1) Encrypted Message n 2) The key k, which is a tuple (d,r), where d is the depth of the cipher and r is the number of times the algorithm should repeat itself. The program should produce as output the decrypted message as text1) Using any programming language of your choice implement the Rail Fence Cipher encryption algorithm 2) Specifications: The program should take two inputs 1) Message n 2) The key k, which is a tuple (d,r), where d is the depth of the cipher and r is the number of times the algorithm should repeat itself. The program should produce as output the encrypted message as text 3) What will be the decryption algorithm for a Rail-Fence cipher? Write down the pseudocode for the algorithm. 4) Using any programming language of your choice implement the Rail Fence Cipher decryption algorithm 5) Specifications: The program should take two inputs 1) Encrypted Message n 2) The key k, which is a tuple (d,r), where d is the depth of the cipher and r is the number of times the algorithm should repeat itself. The program should produce as output the decrypted message as text Test 1 (Encryption) 1) Using a key of (4,5) use your code to encrypt the following text: “CRYPTOLOGY IS THE PRACTICE AND STUDY OF TECHNIQUES FOR SECURE COMMUNICATION IN THE PRESENCE OF THIRD PARTIES CALLED ADVERSARIES.” 2) Do not ignore spaces Test 2 (Decryption) 1) Using a key of (3,3) use your code to decrypt the following text: “TAOTINEN KAT I ODIOAEI OHHLSCTE TTETOEL BI IHI GAO EPSEA TO SS EEK ELRCPTSIY EANRPHMCYEK E CREAAIEJURTE IEASHI MA DRN RH AUWTA RF EFTFHENTPSF Q TAILB E TTECAPMSIYIY SRPURNTBL YCL OANAO E TVREAOSHOTTNULSRHK” 2) Do not ignore spaces Submission 1) Submit your code, a detailed readme file (which should explain how to run the code with sample input and output) and a report (which should include your results for Test 1 and Test 2) in a separate files via Blackboard by the due date. No zipped files allowed. ...