The best way to study for the in class part of the final is to do the following
1. Study new material Section 3.1 (study problem # 5 on p. 185)
Sections 4.1, 4.3 and 4.4.                                                    
    Note the final will have a heavier emphasis on the new material.
2. Study Test 1 and Test 2.                                                          
     In particular, know how to encrypt and decrypt messages using
shift cipher, affine ciphers, the Vigenere cipher, and how
to break a Vigenere cipher using signatures and scrawls.

Take Home Part of : Due by 3:00 p.m., Friday, December 14^th .
 

Hand-in Written HW assignments
(Due Tuesday December 4th in class)
1. From Barr Textbook
 p. 284 # 2b, 2e
2. From Hand-Written Exercises on p. 11 of Section 4.4 class notes
# 1c, 1e, 1f, 2d, 2f, 3, 4



Previous Hand-in Homework Assignments
 

Computer Assignments

Maplet Exercises RSA Cryptosystem
Due Thursday, December 7th in Class. Do Problems 1, 2, 3, and 4. To show the work you perform to complete each exercise using a

Maplet, in Microsoft Word, copy and paste your Maplet window into your Microsoft Word page. This can be accomplished by

clicking on the Maplet Window to make it the front window, pressing and holding the Ctrl Alt PrtScm keys in sequence (this places the Maplet

Window into the copy buffer), and then pasting normally into Microsoft Word Document. For problem 1, also paste in the values
you create for p, q, m, f, e, and d from the external file you save them to (rsaparam.rtf by default). Hand in your assignment by submitting it in
the WeBCT drop box.

 (In your Vigenere cipher groups, use the Vigenere cipher breaker Maplet to break messages on the WeBCT discussion board.)

Practice Homework and Maple Assignments
Chapter 2     Chapter 3     Chapter 4    Chapter 5

Previous Hand-in Homework and Maple Assignments

I. (Due Tuesday, September 4th in class)
From Barr Textbook
1. p. 66  # 1a, 3b, 3e, 5b, 5d, 6b, 9, 12

Computer Assignments
Due September 4th in Class. Do Problems 1, 2, and 3 from sheet
Computer Exercises for Shift Ciphers

Use the shift cipher program located at the link

Shift Cipher Program

Submit your work as a Microsoft Word File. To show your work you performed to complete each exercise
using the Shift Cipher Program, in Microsoft Word, copy and paste your Shift Cipher Program window
into your Microsoft Word page. This can be accomplished by clicking on the Shift Cipher Program Window to make it the
 front window, pressing and holding the Ctrl Alt PrtScm keys in sequence (this places the Shift Cipher Program Window
into the copy buffer), and then pasting normally into Microsoft Word Document. You can hand this assignment in by placing
it in the WeBCT drop box or giving me a printout of your results.

(Due Thursday, September 13th in class)
From Barr Textbook
1. p. 81 # 2a, #3f, 4a, 7, 8, 9

Maplet Exercises Affine Ciphers and Breaking Shift and Affine Ciphers

Due September 18^th in Class. Do Problems 1, 2, 3, 4, and 5 from sheet
Maplet Exercises for Affine Ciphers

Submit your work as a Microsoft Word File (saved under the version 1997-2003). To show your work
you performed to complete each exercise using a Maplet, in Microsoft Word, copy and paste your
Maplet window into your Microsoft Word page. This can be accomplished by clicking on the Maplet Window to make
 it the from window, pressing and holding the Ctrl Alt PrtScm keys in sequence (this places the Maplet Window into the copy
buffer), and then pasting normally into Microsoft Word Document. You can hand this assignment in by placing
 it in the WeBCT drop box.

(Due Thursday, September 20th in class)
From Barr Textbook Section 2.3
1. p. 92 # 1 (Use Simple Keyword Substitution like Example 1, Section 2.3 Notes)
2. p. 92 # 2 (Use Keyword Columnar Substitution  like Example 2, Section 2.3 Notes
3. p. 92 #3b, 3d, 3f, or 3g (Just do one of these using Internet program: Cryptogram solving tool link for Substitution Ciphers) 

(Due Tuesday, September 25th in class)
From Barr Textbook Section 2.4
1. p. 106 # 1, 2, 3, 4, 5 (Note # 2, # 3 involve a simple columnar transposition,
                             # 4 and # 5 a keyword columnar transposition)
2. BONUS p. 106 # 6                                                                                       
 

 (Due Thursday, October 4th in class)
From Barr Textbook
1. p. 118 # 1, 2, 3a, 3b
(Note the answers on 3a and 3b will not be legible keywords)

(Due Thursday, October 11th in class)
From Barr Textbook
1. p. 131 # 5, 6, 7, 8, 9, 11
Notes: On p. 131 # 5a arrange means order does matter
                 On p. 131 # 6a choose means order does not matter

(Due Tuesday October 30th in class)
From Barr Textbook
1. p. 185 # 1a, 1b, 1c, 2a, 2b, 2c, 3a, 3b

Maplet Exercises Friedman and Kasiski Test

Due Tuesday, October 23^rd in Class. Do Problems 1, 2, 3, 4, and 5. The work for Problem 3 should be
handwritten on paper. Problems 1, 2, 4, and 5 should be submitted as a Microsoft Word file. To show your
work you performed to complete each exercise using a Maplet, in Microsoft Word, copy and paste your
Maplet window into your Microsoft Word page. This can be accomplished by clicking on the Maplet Window
to make it the front window, pressing and holding the Ctrl Alt PrtScm keys in sequence (this places the Maplet
Window into the copy buffer), and then pasting normally into Microsoft Word Document. Hand in your handwritten
problem for # 3 on a regular sheet of paper. Problems 1, 2, 4, and 5, can handed in by submitting them in the WeBCT drop box.
Use the file ExercisesSection2.7Maplets.doc for guidance.

(Due Thursday, October 25^th in Class)

Maplet Exercises: Breaking the Vigenere Cipher

Due Thursday, October 25th in Class. Do Problems 1, 2, 3a, and 3b. Problem 3c
can be submitted as a bonus problem. The work for Problems 1 and 2 (p. 154 # 1 from Barr textbook and
Exercises # 1, 2, and 3 from pp.13-15 at the end of Section 2.8 class notes)
should be handwritten on paper. Problems 3a and 3b (and 3c if you choose to do the bonus) should be
submitted as a Microsoft Word file. To show your work you performed to complete each exercise using a Maplet,
in Microsoft Word, copy and paste your Maplet window into your Microsoft Word page. This can be
accomplished by clicking on the Maplet Window to make it the front window, pressing and holding the
 Ctrl Alt PrtScm keys in sequence (this places the Maplet Window into the copy buffer), and then pasting
normally into Microsoft Word Document. Hand in your handwritten problem Problems 1 and 2 (p. 154 # 1
 from Barr textbook and Exercises # 1, 2, and 3 from pp.13-15 at the end of Section 2.8 class notes)
on a regular sheet of paper. Problems 3a and 3b (and the bonus 3c if you choose to do it)
can handed in by submitting them in the WeBCT drop box (make sure you save and submit
your file in Microsoft Word 1997-2003 format). Use the file ExercisesSection2.8Maplets.doc for guidance

(Due Tuesday November 13th in class)
From Barr Textbook
1. p. 185 # 5
p. 260 # 6a, 6b, 11a, 11b, 11c

(Due Thursday November 16th in class)
From Barr Textbook
1. p. 260 # 12a, 12b
2.  p. 284 # 1c, 1d, 1e