28.11.2014
Term Project CMPE 553 Cryptography and Network Security, Fall
2014
Term project is to be made in groups of at most three students.
Task
Develop a network application for testing block ciphers in different modes of operation.
Implemented in the project block ciphers should allow both encryption and decryption.
Block ciphers and operation modes to choose are given in Tables 1 and 2 respectively.
Communicating parties shall be represented as processes running on two separate
computers connected via some channel.
Table 1. Block ciphers
#
Cipher name
1.
DES
2.
Double DES with
two keys [1]
3.
Triple DES with
two keys [1]
4.
Triple DES with
three keys [1]
5.
S-DES
Table 2. Modes of block cipher operation
#
Mode of operation
1.
Cipher Block Chaining (CBC)
2.
Cipher Feedback (CFB)
3.
Output Feedback (OFB)
4.
Counter
Select any algorithm from Table 1 and any mode of operation from Table 2. A
combination (algorithm-mode of operation) must be unique for each student/group of
students. For example, if variant (block cipher 1 (DES), mode of operation 3 (OFB)), is
selected by some person/group, then this combination is not to be used by any other
person/group. Your choices should be conveyed by e-mail to the lecturer (last day is
Monday, December 8, 2014). Later choice making will be penalized by 4 points
deduction.
Selected algorithms are to be implemented and investigated for the selected mode of
operation.
Grading policy and requirements
1. Maximum point for the term project is 20.
1
2. Term project materials should be submitted to the lecturer 12.01.2015, Monday,
before 12.00. Later materials submission will lead to deduction of 2 points, if
submitted on the same day, and 4 points, otherwise.
Your variant choice should be conveyed to the lecturer (last day is Monday, December
8, 2014). Later choice making will be penalized by 4 points deduction. Already made
choices will be available from the course web-page.
3. Reports will be defended during 13.01.2015-15.01.2015, date and time will be
announced additionally. Later defense of reports will lead to deduction of 4 points.
4. Materials on term project should contain:
- paper report on the work done
- diskette with: Word document file of report; source codes and executables of developed
applications; necessary examples of plaintexts and cipher-texts and so on; necessary for
work special libraries if any. So, diskette should contain source code, all information
concerning description of your project, and it should be possible to launch from it your
application, to enter necessary data, to view obtained results.
5. Report on term project should have:
- cover page (department, course, title of term project, student’s name, instructor’s name,
date);
- task definition;
- brief definition of an algorithm and mode of operation to be implemented;
- description of developed application and its source codes;
- description of tests conducted to verify correct work of your application, provide
screenshots of working program, comment them;
- experiments results and discussion;
- conclusion
- references to used articles, textbooks, web-sites and so on, if any
References
1. http://cmpe.emu.edu.tr/chefranov/cmpe553_07_Spring/Notes/Ch6ModernSymCip
hers.doc
2