Professor of Mathematics
Department of Mathematics
Northern
Highland Heights
859-572-6672
FAX: 859-572-6097
E-mail christensen@nku.edu
Here is a copy of the syllabus for MAT/CSC 483 – 001.
Here is a copy of the Departmental syllabus that applies to all MAT and STA courses.
Here are some links to cryptological software:
http://studenthome.nku.edu/~kohuss/content/crypt.html
http://www.nku.edu/~mcsc/mat494/
http://faculty.goucher.edu/blewand/cryptomath
Vbreaker by Amber Rogers.
ECrypt software for doing Hill cipher encryption and other encryption http://users.etown.edu/m/mcdevittt/
UCOK undergraduate research talk
Monday, 25 August
For Wednesday, create a cryptogram to exchange.
Wednesday, 27 August
For Friday, create a Caesar cipher.
For Friday, break the cryptogram that you received.
Friday, 29 August
For Wednesday, break the Caesar cipher that you received.
Wednesday, September 3
Friday, September 5
For Monday, create an affine cipher to exchange.
Monday, September 8
For Wednesday, break the affine cipher that you received.
Wednesday, September 10
For Friday, create a keyword cipher to exchange.
Friday, September 12
For Monday, break the keyword cipher that you received.
Monday, September 15
NKU is closed because of weather.
For Wednesday, break the keyword cipher that you received.
Wednesday, September 17
Kryptos https://www.cia.gov/about-cia/virtual-tour/kryptos/index.html
Poe Crypto Challenge http://www.bokler.com/eapoe.html
Dorabella cipher http://en.wikipedia.org/wiki/Dorabella_Cipher
Voynich manuscript http://en.wikipedia.org/wiki/Voynich_Manuscript
Beale ciphers http://en.wikipedia.org/wiki/Beale_ciphers
Beale ciphers http://www.simonsingh.net/Beale_Treasure_Ciphers.html
Friday, September 19
An example of cryptanalysis of a Playfair cipher.
For Monday create a Playfair cipher with known plaintext to exchange.
There was no class on Monday, September 22.
For Wednesday create a Playfair cipher with known plaintext to exchange.
Wednesday, September 24
For Friday break the Playfair cipher that you received.
Here is a copy of test one.
Friday, September 26
Monday, September 29 More Hill cipher
Wednesday, October 1 Even more Hill cipher
For Monday October 6, create a Hill cipher with block size and enough known plaintext to be breakable.
Friday, October 3 No Class
Monday, October 6
For Friday, October 10 break the Hill cipher that you received and create a Vigenère cipher to exchange.
For Wednesday, October 8 test one is due.
Wednesday, October 8
For Friday, October 10 break the Hill cipher that you received and create a Vigenère cipher to exchange.
Friday, October 10
For Wednesday, October 15 break the Vigenère cipher that you received.
Monday, October 13
Another way to find the length of the keyword
Wednesday, October 15
For Friday, October 17 break the Vigenère cipher that you received.
Friday, October 17
Tony Sale’s Enigma simulator http://www.codesandciphers.org.uk/enigma/emachines/enigmad.htm
Monday, October 20
Fall break
Wednesday, October 22
Enigma
Friday, October 24
DVD “The Dayton Codebreakers”
Monday, October 27 and Wednesday, October 29
http://home.freeuk.com/spook007/
Friday, October 31
Here is a copy of test two.
Here is a Word file of test two.
Monday, November 3
http://www.cacr.math.uwaterloo.ca/hac/ link to Handbook of Applied Cryptography by Menezes, van Oorschot, and Vanstone
Wednesday, November 5
Example of simplified DES algorithm
Monday, November 10
DES algorithm from Schneier’s Applied Cryptography
Wednesday, November 12
Modes of operation and discussion of transposition cipher exercise
