Like Tree5Likes
  • 5 Post By hk_mp5kpdw

One-time pad older than thought

This is a discussion on One-time pad older than thought within the General Discussions forums, part of the Community Boards category; An interesting NYTimes article (for those into the topic) talks about how one-time pad cryptography turns out to be older ...

  1. #1
    Registered User hk_mp5kpdw's Avatar
    Join Date
    Jan 2002
    Location
    Northern Virginia/Washington DC Metropolitan Area
    Posts
    3,803

    One-time pad older than thought

    An interesting NYTimes article (for those into the topic) talks about how one-time pad cryptography turns out to be older than once thought. It claims the methodology actually dates back to the days of the telegraph in the 1880's instead of WWI. You may need an account to access the article.

    A short sample from the article:
    If not for a computer scientist’s hobby of collecting old telegraph codebooks, a crucial chapter in modern cryptography might have been lost to history.

    The collector is Steven M. Bellovin, a professor of computer science at the Columbia University School of Engineering and a former computer security researcher at AT&T Bell Laboratories. On a recent trip to Washington he found himself with a free afternoon and decided to spend it at the Library of Congress, looking for codebooks that weren’t in his collection.

    In the 19th century codebooks were used not so much for secrecy as for compression, to bring down the prohibitive cost of telegraph communication. (The first trans-Atlantic cables cost $5 a word.) Designers devised lists of words to replace phrases and even sentences.

    But when Dr. Bellovin hunted though the card catalog, his interest was piqued by an 1882 codebook whose title included the word “secrecy.”

    “I thought, ‘O.K., let me go see how they did it,’ ” he recalled. “When I read the two-page preface, my jaw dropped.”

    He could plainly see that the document described a technique called the one-time pad fully 35 years before its supposed invention during World War I by Gilbert Vernam, an AT&T engineer, and Joseph Mauborgne, later chief of the Army Signal Corps.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

  2. #2

    Join Date
    May 2005
    Posts
    1,041
    That's really cool!
    I'm not immature, I'm refined in the opposite direction.

  3. #3
    (?<!re)tired Mario F.'s Avatar
    Join Date
    May 2006
    Location
    Portugal
    Posts
    7,510
    Fascinating stuff! Thanks so much for sharing.

    The link appears to be open to everyone. Within you will also be linked to Steven M. Bellovi paper; A brilliant historic account of 19th century cryptography and the detective work behind this discovery. It also includes scans of Mr. Frank Miller codebook.
    The programmer’s wife tells him: “Run to the store and pick up a loaf of bread. If they have eggs, get a dozen.”
    The programmer comes home with 12 loaves of bread.


    Originally Posted by brewbuck:
    Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Delete Files Older than 2 years
    By Dragoon_42 in forum C++ Programming
    Replies: 10
    Last Post: 05-17-2007, 04:13 PM
  2. does the mind change as you get older?
    By Anddos in forum A Brief History of Cprogramming.com
    Replies: 11
    Last Post: 12-12-2005, 11:10 AM
  3. need older copies of linuxant drivers
    By Waldo2k2 in forum Tech Board
    Replies: 0
    Last Post: 10-17-2003, 11:11 PM
  4. DirectX or OpenGL for older computer
    By nickname_changed in forum Game Programming
    Replies: 10
    Last Post: 09-01-2003, 06:58 AM
  5. Faster directx on older pcs
    By Josh Kasten in forum Game Programming
    Replies: 15
    Last Post: 01-25-2003, 07:32 AM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21