辅导program程序、辅导C++设计编程
- 首页 >> Algorithm 算法 ROW TRANSPOSITION CIPHER IMPLEMENTATION
1) Using any programming language of your choice implement the Row Transposition
Cipher encryption algorithm. [15 marks]
2) Specifications: The program should take two inputs 1) Message M 2) A word w of
length k. The number of columns in the row transposition matrix will be k, and the
columns in the matrix will be read in the alphabetical order of the letters in w. The
program should then create the row transposition matrix and create the encrypted
message C.
In coding the above, please note the following
• Ignore spaces in the input text
• You can write your code to be case insensitive – convert all input to lower case
• In order to make decryption easy, pad any empty spaces in the last row of the
row transposition matrix with the character X
• Your final output should include M,w and C
3) What will be the decryption algorithm for a Row Transposition Cipher? Write down
the pseudocode for the algorithm. [10 marks]
4) Using any programming language of your choice implement the Row Transposition
Cipher decryption algorithm [15 marks]
5) Specifications: The program should take two inputs 1) Encrypted Message C 2) The
word w of length k that was used in encrypting the message. The program should then
create the row transposition matrix and create the decrypted message M.
In coding the above, please note the following
• You may or may not choose to remove any characters used for padding
• Since spaces were removed from the plaintext before encryption they do not
have to be reinserted after decryption
• Your final output should include C,w and M
Test 1 (Encryption) [5 marks]
1) Using a w value of NYITV 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) Output your results
Test 2 (Decryption) [5 marks]
1) Using a w value of NYITV use your code to decrypt the following text:
“eroohalpsmeptroohalsefxphtnlefhhxtwstiiiieoecrastitosplmgeasentmitrasnefylypn
hiasnetoiroitaetaxoeetonicrasetltesnicrfwmurnhrrhitrcrxhtpipsrmaimiitpiphlaleiucci
ptotpe”
2) Output your results
Submission
1) Submit the following documents separately in CANVAS by the deadline. NO ZIPPED
FILES ALLOWED
1) All your code files
2) A detailed README file, which should explain how to run the code with sample
input and output. If you are unfamiliar with READMEs you can find an
introduction here https://www.makeareadme.com/ , here
https://medium.com/@meakaakka/a-beginners-guide-to-writing-a-kickassreadme-7ac01da88ab3
and here
https://www.youtube.com/watch?v=RZ5vduluea4. Note that the README file you
submit for this project need not be complex, it only needs to at least explain how
to compile the code and run the code with examples. [5 marks]
3) Your executable file and your DOCKER file. Please see the file DOCKER
INSTRUCTIONS for information on how to create your docker file.[10 marks]
4) A report (which should include your answer to the test results with screen shots)
5) Note that your submission will be checked for plagiarism. All submissions with
verified plagiarism cases will graded 0
1) Using any programming language of your choice implement the Row Transposition
Cipher encryption algorithm. [15 marks]
2) Specifications: The program should take two inputs 1) Message M 2) A word w of
length k. The number of columns in the row transposition matrix will be k, and the
columns in the matrix will be read in the alphabetical order of the letters in w. The
program should then create the row transposition matrix and create the encrypted
message C.
In coding the above, please note the following
• Ignore spaces in the input text
• You can write your code to be case insensitive – convert all input to lower case
• In order to make decryption easy, pad any empty spaces in the last row of the
row transposition matrix with the character X
• Your final output should include M,w and C
3) What will be the decryption algorithm for a Row Transposition Cipher? Write down
the pseudocode for the algorithm. [10 marks]
4) Using any programming language of your choice implement the Row Transposition
Cipher decryption algorithm [15 marks]
5) Specifications: The program should take two inputs 1) Encrypted Message C 2) The
word w of length k that was used in encrypting the message. The program should then
create the row transposition matrix and create the decrypted message M.
In coding the above, please note the following
• You may or may not choose to remove any characters used for padding
• Since spaces were removed from the plaintext before encryption they do not
have to be reinserted after decryption
• Your final output should include C,w and M
Test 1 (Encryption) [5 marks]
1) Using a w value of NYITV 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) Output your results
Test 2 (Decryption) [5 marks]
1) Using a w value of NYITV use your code to decrypt the following text:
“eroohalpsmeptroohalsefxphtnlefhhxtwstiiiieoecrastitosplmgeasentmitrasnefylypn
hiasnetoiroitaetaxoeetonicrasetltesnicrfwmurnhrrhitrcrxhtpipsrmaimiitpiphlaleiucci
ptotpe”
2) Output your results
Submission
1) Submit the following documents separately in CANVAS by the deadline. NO ZIPPED
FILES ALLOWED
1) All your code files
2) A detailed README file, which should explain how to run the code with sample
input and output. If you are unfamiliar with READMEs you can find an
introduction here https://www.makeareadme.com/ , here
https://medium.com/@meakaakka/a-beginners-guide-to-writing-a-kickassreadme-7ac01da88ab3
and here
https://www.youtube.com/watch?v=RZ5vduluea4. Note that the README file you
submit for this project need not be complex, it only needs to at least explain how
to compile the code and run the code with examples. [5 marks]
3) Your executable file and your DOCKER file. Please see the file DOCKER
INSTRUCTIONS for information on how to create your docker file.[10 marks]
4) A report (which should include your answer to the test results with screen shots)
5) Note that your submission will be checked for plagiarism. All submissions with
verified plagiarism cases will graded 0