HW-3-6-3-11 - CIS 3360 Security in Computing Summer 2011...

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Summer 2011 Homework 3 (100 points) NOTE: For all questions, please show your calculations. Homework submitting instructions: (i) Acceptable file formats: .doc, .docx or .pdf file (ii) The file name should be yourlastname_yourfirstname_HW3 (iii)Include your Full Name and your PID at the top of your document. 1) [5] For substitution cipher, use the keyword HOMEWORK to encrypt the message “summer term is only twelve weeks”. 2) [10] Construct the Playfair matrix using the keyword GRADUATION and encrypt message “Twelve weeks cover material of sixteen weeks”. 3) [5] Encrypt the hexadecimal message F9E8 using the Rail Fence cipher for binary numbers with 3 Rails. [Give answer in hexadecimal encrypted message]. 4) [5] Decrypt the hexadecimal encrypted message CDEF created by the Rail Fence cipher for binary numbers with 3 Rails. [Give answer in hexadecimal message]. 5)
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HW-3-6-3-11 - CIS 3360 Security in Computing Summer 2011...

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