06 20008 Cryptography

Volker Sorge 10 credits in Semester 1

News

Field Trip to Bletchley Park, Wednesday 3rd December 2008: We will leave at 10 am sharp(!) from the roundabout between University station and building B1 on the blue zone of the campus map. We should be back before 6pm.

Please have a look at the tutorial implementation of DES and fill in the evaluation questionnaire that was handed out in the lecture or online. Please return the questionnaire either in the lectures or by email to rza@cs.bham.ac.uk.

Please submit programming exercise 1 by Friday noon via Moodle. Please do not forget to include a ReadMe that contains your student ID number and that explains how to run your code.
Also submit a paper with the requested answers (i.e. only the answers to the problems, not the full intermediate output!) via the pigeonholes.

The Marking Scheme for programming exercise 1 has been released.

There have been some mistakes in the walkthrough and debugging examples for Programing Exercise 1. The updated and (hopefully) correct version is now here. (Plus the test data in ASCII)
Please let me know if there are any more problems!

The Exercise 1 marks have been entered. Please have a look here. Please check the marks and in case you have not got a mark or you have a 0 mark but believe this is incorrect, please come and see me after the next lecture!

The lecture theatre for Friday's exercise classes are now fixed.

Lectures

The lectures are
Tuesdays, 12:00-1:00 in UG04, Learning Centre (Building R28 on the Campus Map)
Fridays 2:00-3:00 in UG04, Learning Centre (Building R28 on the Campus Map)

Exercises are
Fridays 3:00-4:00 in G36, Mechanical Engineering (Building Y3 on the Campus Map)

Assessment

80% of your course mark will be determined by a 1.5-hour examination in May (or early June).

20% of the mark is determined by continuous assessment. See Handout 0 for details.

For continuous assessment exercises marked so far please see here

Questions

If you have any questions, problems, or comments, please email me or come and see me during my office hours Tuesdays 3-4pm. To see me outside these office hours, please email me and suggest some times, which are compatible with my timetable.

When emailing, please observe that you can expect the fastest response, when your email is short and in plain ASCII. If you have to send attachments, please make sure they are in some open standard format. In particular, do NOT send MS word files. Why? See here.

Recommended Books

Title Author(s) Publisher Comments
Practical Cryptography Fergueson, Schneier John Wiley & Sons Supplementary Reading
Applied Cryptography Schneier John Wiley & Sons Supplementary Reading
Handbook of Applied Cryptography Menezes, van Oorschot, Vanstone CRC Press Supplementary Reading
Cryptography Smart McGraw Hill Supplementary Reading
Beginning Cryptography with Java Hook John Wiley & Sons Book on Programming
Contemporary Cryptology Catalano, Cramer, Damgard, DiCrescenzo, Pointcheval, Takagi Springer Verlag Advanced Material

Handouts and Worksheets

It is planned to make the handouts for the lectures available on-line after they have been handed out in the lectures. Please DO NOT PRINT THEM OUT. First check for spare and reference copies which can be found in the School's library. DO NOT WASTE PRINTER RESOURCES.

Week Topic Handout Solution
0 General Information gzipped PostScript, pdf  
1 Historical Ciphers gzipped PostScript, pdf gzipped PostScript, pdf
2 Block Ciphers: Feistel Ciphers, DES gzipped PostScript, pdf gzipped PostScript, pdf
3 AES (Rijndael), Finite Fields gzipped PostScript, pdf gzipped PostScript, pdf
4 Modes of Operations, Cryptomeria gzipped PostScript, pdf gzipped PostScript, pdf
5 Stream Ciphers: RC4, LFSR, CSS, A5/1 gzipped PostScript, pdf gzipped PostScript, pdf
6 Cryptographic Hash Functions
Message Authetication Codes		 gzipped PostScript, pdf gzipped PostScript, pdf
7 Key Exchange Protocols
Overview of Cryptanalysis techniques		 gzipped PostScript, pdf  
8 Public Key Cryptography, Discrete Logarithms gzipped PostScript, pdf gzipped PostScript, pdf
9 RSA, Generating Prime Numbers, Arithmetic Modulo Composites gzipped PostScript, pdf
 gzipped PostScript, pdf
10/1 Quantum Cryptography
Guest Lecture by Iain Styles		    
10/2 Digital Signatures gzipped PostScript, pdf  
11 Certificates, Commitment Schemes, Zero Knowledge Proofs gzipped PostScript, pdf  
12 Review Suggestions gzipped PostScript, pdf  

Errata can be found here.

Programming Exercises

Implement the exercises in a programming language of your choice. The only requirement is that the program should be runnable on the Linux machines in the department. Include sufficient explicit output into your program so I can convince myself that the computation actually works.
Submit the source of your program (with an included comment how to run it) via Moodle.
Also submit a paper with the requested answers (i.e. only the answers to the problems, not the full intermediate output!) via the pigeonholes.

Programming exercises will be given on the exercise sheets

No. Topic Handout Resources Solution
1 Feistel Network in OFB Mode In Handout 4 (ps.gz, pdf) Examples and walk-through (pdf)
Test data (ASCII)
Marking Scheme		 Solutions (ps.gz, pdf)

Maintained by: Volker Sorge, School of Computer Science, The University of Birmingham
Last modified: Fri Dec 12 18:11:44 GMT 2008