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 (Worth 10 pts): Due by 5:00 p.m., Thursday, May 7^th

Hand-in Written HW assignments
(Due Tuesday April 28th class)
1. From Barr Textbook
 p. 284 # 1c, 1d, 1e , 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, April 30^th 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. Use file ExercisesRSAMaplets.doc for guidance



 

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

Previous Hand-in Homework and Maple Assignments

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

Due Thursday February 5th in Class. Do Problems 1, 2, 3a, 3b, 3c from sheet
Maplet Exercises for Shift Ciphers

using the shift cipher Maplets downloaded from the WebCT homepage

Submit your work 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. On Microsoft Windows based machines, this can be accomplished by clicking
on the Maplet Window to make it the front window and then pressing and holding the Ctrl Alt PrtSc keys
in sequence (some machines require Function Alt PrtSc). This places the Maplet Window into the copy buffer.
On Macintosh based machines, this is accomplished by clicking on the Maplet Window to make it the front
window, pressing and holding the Command–Ctrl-Shift-4 keys in sequence, then pressing the space key, and then
clicking the Maplet Window. This places the Maplet Window into the copy buffer. You then paste the Maple
Window normally into Microsoft Word Document. You can hand this assignment in by placing it in the WeBCT drop box.

(Due Tuesday, February 10th in class)
From Barr Textbook
1. p. 81 # 2a, #3f, 4b, 7, 8, 9

Due Thursday February 12th in Class. Do Problems 1, 2, 3, 4  from sheet
Maplet Exercises for Affine Ciphers

using the affine cipher Maplets downloaded from the WebCT homepage.

Submit your work 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. On Microsoft Windows based machines, this can be accomplished by clicking
on the Maplet Window to make it the front window and then pressing and holding the Ctrl Alt PrtSc keys
in sequence (some machines require Function Alt PrtSc). This places the Maplet Window into the copy buffer.
On Macintosh based machines, this is accomplished by clicking on the Maplet Window to make it the front
window, pressing and holding the Command–Ctrl-Shift-4 keys in sequence, then pressing the space key, and then
clicking the Maplet Window. This places the Maplet Window into the copy buffer. You then paste the Maple
Window normally into Microsoft Word Document. You can hand this assignment in by placing it in the WeBCT drop box.

(Due Tuesday, February 17th 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, February 24th in class)
From Barr Textbook Section 2.4
1. p. 106 # 1, 2, 3, 4, 5, 6 (Note # 2, # 3 involve a simple columnar transposition,
                             # 4 and # 5 a keyword columnar transposition)

 (Due Thursday, March 5th in class)
From Barr Textbook             
   1. p. 118 # 1, 2, 3a, 3b              
2. p. 131 # 5, 6, 7                  
                                                                  Notes:  The answers on p. 118 # 3a and #3b will not be legible keywords
                                                      On p. 131 # 5a arrange means order does matter (permutation)
                                                           On p. 131 # 6a choose means order does not matter (combination)

Maplet Exercises: Friedman and Kasiski Test

Due Thursday, March 26th 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. On Microsoft Windows based machines, this can
be accomplished by clicking on the Maplet Window to make it the front window and then pressing and
holding the Ctrl Alt PrtSc keys in sequence (some machines require Function Alt PrtSc). This places
the Maplet Window into the copy buffer. On Macintosh based machines, this is accomplished by clicking
on the Maplet Window to make it the front window, pressing and holding the
Command–Ctrl-Shift-4 keys in sequence, then pressing the space key, and then clicking the
Maplet Window. This places the Maplet Window into the copy buffer. You then paste the Maple
Window 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, March 19th in class)
From Barr Textbook
1. p. 131 # 8, 9, 11

(Due Tuesday April 7th in class)
From Barr Textbook
1. p. 185 # 1a, 1b, 1c, 2a, 2b, 2c, 3a, 3b

Maplet Exercises: Breaking the Vigenere Cipher

Due Thursday, April 2nd 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. On Microsoft Windows based
machines, this can be accomplished by clicking on the Maplet Window to make it the front window and then pressing and
holding the Ctrl Alt PrtSc keys in sequence (some machines require Function Alt PrtSc). This places the Maplet Window into
the copy buffer. On Macintosh based machines, this is accomplished by clicking on the Maplet Window to make it the front
window, pressing and holding the Command–Ctrl-Shift-4 keys in sequence, then pressing the space key, and then
clicking the Maplet Window. This places the Maplet Window into the copy buffer. You then paste the Maple Window
normally into a 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.
 Use the file ExercisesSection2.8Maplets.doc for guidance

(Due Tuesday April 21st in class)
From Barr Textbook
1. p. 185 # 5
2. p. 260 # 6a, 6b, 11a, 11b, 11c

(Due Thursday April 23rd in class)
From Barr Textbook
1. p. 260 # 12a, 12b