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U.S. Army Guide to Code Breaking

Posted by ryuzaki0 on from the terces-egassem-seog-ereh dept.

sebFlyte writes "From the introduction of this document, the U.S. Army's field manual guide to Cryptanalysis: 'This manual presents the basic principles and techniques of cryptanalysts and their relation to cryptography. Cryptanalytics is the art and science of solving unknown codes and ciphers.'"

4 of 249 comments (clear)

  1. If your interested in this.... by 0racle · · Score: 4, Informative

    You should take a look at tracking down The Codebreakers which is a fasinating read.

    --
    "I use a Mac because I'm just better than you are."
  2. Re:Utility? by CodeMonkey4Hire · · Score: 5, Informative
    You're right. This isn't new. From the top of TFA:
    FIELD MANUAL
    NO 34-40-2 HEADQUARTERS
    DEPARTMENT OF THE ARMY
    Washington, DC, 13 September 1990

    The original for this came from <a href=http://www.atsc-army.org/cgi-win/$atdl.exe/fm /34-40-2/default.htm>here</a> on Tue Dec 17 01:21:11 EST 1996.
    This thing is 14 years old and has been public for over 8 years (at least) and somebody thinks that it is worth putting on slashdot. Thanks.
    (P.S. - note that the link they used for "here" doesn't even work. /.ed maybe?)
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    Let's go Hurricanes!!! 2006 Stanley Cup Champions!!!
  3. Re:Light reading by ackthpt · · Score: 4, Informative
    A sneak peek at chapter 7: Solution of polygraphic substitution systems polyalphabetic substitution systems and that's just the title. Pack a lunch for this one...

    A good read along with this would probably be Between Silk And Cyanide: A Codemakers War, which gets into, among other things, creation of more secure codes during WW II. An excellent read (I currenly have The White Rabbit on order (story of Yeo-Thomas' activities in France, capture, interrogation and imprisonment))

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    A feeling of having made the same mistake before: Deja Foobar
  4. Re:Distribution Restriction by The+Wookie · · Score: 4, Informative

    You can find the letter authorizing public release/unlimited distribution of this manual here.