Cryptography

The History and Mathematics of Codes and Code Breaking

Month: November 2010 Page 2 of 3

Expository Essay – The M-209 Cipher Machine

Here’s Rob’s paper on the M-209 cipher machine [PDF].

Expository Essay – The Purple Machine

Here’s Jon’s paper on the Purple machine [PDF].

Expository Essay – Chaocipher #1

Here’s Tyler’s paper on the Chaocipher [PDF].

Expository Essay – The Great Paris Cipher

Here’s Sam’s paper on the Great Paris Cipher [PDF].

Expository Essay – SIGSALY

Here’s Rachel’s paper on SIGSALY [PDF].

Expository Essay – The Lorenz Machine

Here’s John’s paper on the Lorenz cipher machine [PDF].

Expository Essay – The Playfair Cipher #2

Here’s Tyler’s take on the Playfair cipher [PDF].

Expository Essay – The Hill Cipher #2

And here’s Max’s take on the Hill cipher [PDF].

Expository Essay – The Hill Cipher #1

Here’s Danielle’s paper on the Hill cipher [PDF].

Expository Essay – Navajo Code Talkers

Here’s Preston’s paper on Navajo code talkers [PDF].

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