CrackDES-2010 - CIS 3362 Homework #3: Crack DES Assigned:...

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CIS 3362 Homework #3: Crack DES Assigned: 9/27/10 Due: 10/11/10 Groups: Please choose groups of four (or fewer students) to work on this assignment The goal will be to break the ciphertext given at the end of this assignment. A file with the same contents will also be posted on the course web site. In a week’s time, the first plaintext block will be given, so that you will have one week with matching plaintext and ciphertext information. (This block won’t “giveaway” the critical part of the message though, but can be used to verify if your guess for the key is correct.) Protocol used to carry out DES The original plaintext message was written using valid Radix-64 characters only. A list of these characters and their conversions to a 6-bit integer are given on page 613 of the textbook. The original plaintext file contained exactly 10 Radix-64 characters per line. For each line, these characters were converted to their binary equivalent, yielding 60 bits. Then, four 0s were added to the end of this, creating 64 bits.
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This note was uploaded on 07/13/2011 for the course CIS 3362 taught by Professor Staff during the Fall '08 term at University of Central Florida.

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CrackDES-2010 - CIS 3362 Homework #3: Crack DES Assigned:...

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