CMPS 385 Computer Security Homework

Task 1 (1%): 

Search and find any runnable DES Program written in any language from Internet. 

• Give the link of the site from where you obtained this program, and the screenshots of the site. Explain how did you find this. 

Task 2 (1%): 

Run the program with a block of data as a plain text input. 

• Provide the screenshot of your data and the initial key used in the DES program. 

• Provide screen shots of the outputs of your program and explain the screenshots. 

Task 3 (1%): 

• Describe your experience with the program. It could be positive, negative, or anything. We like to know your genuine opinion on your experience with the program. 

Submission requirements: 

• Make sure that you submit one hardcopy to me, but must submit the electronic version on Blackboard. The hardcopy and the electronic copy must be consistent to each other. 

• No late submission will be accepted under any circumstances this time 

• No hand-written submission will be accepted. 

• Be aware of 

• Submitted work must be your own work 

• You MUST NOT copy the homework from other student, other electronics or paper sources. 

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