Chris Christensen Northern Kentucky University.
-
Upload
norman-finamore -
Category
Documents
-
view
243 -
download
4
Transcript of Chris Christensen Northern Kentucky University.
![Page 1: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/1.jpg)
Chris Christensen
Northern Kentucky University
Recruiting and Training Mathematicians as
Codebreakers
![Page 2: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/2.jpg)
World War I
![Page 3: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/3.jpg)
The Polish Cipher Bureau
![Page 4: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/4.jpg)
The Government Code & Cypher School
![Page 5: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/5.jpg)
The Search for “Cipher Brains”
![Page 6: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/6.jpg)
Recruitment
![Page 7: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/7.jpg)
I was teaching at the University of Minnesota; teaching mathematics. I tried to devise a crypt system … So I wrote to the Navy … Well, they didn’t need any more crypt systems, but they did need someone who had some ability as a analyst, and would I be interested in taking their crypt course?
Howard Campaigne
Recruitment
![Page 8: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/8.jpg)
J. J. Eachus was a mathematics PhD from the University of Illinois. At the time of Pearl Harbor he was teaching at Purdue University-Indianapolis and as sort of a hobby he took a Navy correspondence course in cryptanalysis.
Recruitment
![Page 9: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/9.jpg)
[Bill Wray and I] took a Navy course in cryptanalysis which had no connection with the college [Williams college]. I had to drop it because of heavy administrative duties but Bill completed it apparently very successfully. … I assume that the Navy was interested in recruiting mathematicians. There was no regular text – merely mimeographed material on methods of coding and decoding messages – substitution, transposition, etc., with exercises on each lesson. I would say there were about 12 lessons.
Donald E. Richmond
April 6, 1982
Recruitment
![Page 10: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/10.jpg)
The Correspondence Course
![Page 11: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/11.jpg)
Assignment 3Numerical Cipher Alphabets
![Page 12: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/12.jpg)
Assignment 3, Problem 2
![Page 13: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/13.jpg)
Justice John Paul Stevens
![Page 14: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/14.jpg)
Mathematicians
Alfred Clifford(Top, 1)
Marshall Hall, Jr.(Middle, 2)
Andrew Gleason(Middle, 5)
![Page 15: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/15.jpg)
National Security Agency
![Page 16: Chris Christensen Northern Kentucky University.](https://reader031.fdocuments.net/reader031/viewer/2022013105/5518b224550346881f8b4f78/html5/thumbnails/16.jpg)
Cipher Brain?http://www.nku.edu/~christensen/