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200-Year-Old Cipher Finally Cracked

Attila Dimedici writes "A code expert just cracked a code used by a friend of Thomas Jefferson in a letter written to Jefferson some 200 years ago. This code is fairly easy to crack using a computer, but extremely difficult without one. I think it would have been much harder if the author had not included an indication as to what code algorithm he used in the letter accompanying the coded message."

141 comments

  1. tl;dr by Anonymous Coward · · Score: 5, Informative

    The message says:

    "In Congress, July Fourth, one thousand seven hundred and seventy six. A declaration by the Representatives of the United States of America in Congress assembled. When in the course of human events..."

    1. Re:tl;dr by morgan_greywolf · · Score: 5, Funny

      FTFA:

      After about a week of working on the puzzle, the numerical key to Mr. Patterson's cipher emerged -- 13, 34, 57, 65, 22, 78, 49.

      Hey! That's the combination to my luggage!

    2. Re:tl;dr by hansraj · · Score: 1

      A luggage combination that long? What exactly are you carrying around in your luggage?

    3. Re:tl;dr by bitt3n · · Score: 1
      in compliance with the patriot act, the message has now been redacted to read:

      In XXX, July XXX, one thousand seven hundred and seventy XXX. A XXX by the XXX of the United XXX of XXX in XXX assembled.

    4. Re:tl;dr by RDW · · Score: 1

      In a strikingly similar incident, the 43rd president, George W Bush, was apparently challenged while in office with an encrypted text by an unknown correspondent. Though the cipher remains unsolved, there are hints that the plaintext, like Jefferson's Declaration of Independence, encapsulates some of the President's profoundest thoughts. Former President Bush hopes that the science of cryptanalysis may one day advance to the point where future generations will be able to read the message. The full text is given below:

      Znxr gur Cvr Uvture

      V guvax jr nyy nterr, gur cnfg vf bire.
      Guvf vf fgvyy n qnatrebhf jbeyq.
      Vg'f n jbeyq bs znqzra
      Naq hapregnvagl
      Naq cbgragvny zragny ybffrf.

      Eneryl vf gur dhrfgvba nfxrq
      Vf bhe puvyqera yrneavat?
      Jvyy gur uvtujnlf bs gur vagrearg
      Orpbzr zber srj?
      Ubj znal unaqf unir V funxrq?

      Gurl zvfhaqrerfgvzngr zr.
      V nz n cvgohyy ba gur cnagyrt bs bccbeghavgl.
      V xabj gung gur uhzna orvat naq gur svfu
      Pna pbrkvfg.

      Snzvyvrf vf jurer bhe angvba svaqf ubcr
      Jurer bhe jvatf gnxr qernz.
      Chg sbbq ba lbhe snzvyl!
      Xabpx qbja gur gbyyobbgu!
      Ihypnavmr fbpvrgl!
      Znxr gur cvr uvture!
      Znxr gur cvr uvture!

    5. Re:tl;dr by Anonymous Coward · · Score: 0

      vulcanise society? that was a new one on me...

    6. Re:tl;dr by Anonymous Coward · · Score: 2, Informative

      Make the pie higher

      I think we all agree, the past is over.
      This is still a dangerous world.
      It's a world of madmen
      And uncertainty
      And potential mental losses.

      Rarely is the question asked
      Is our children learning?
      Will the highways of the internet
      Become more few?
      How many hands have I shaked?

      They misunderestimate me.
      I am a pitbull on the pantleg of opportunity.
      I know that the human being and the fish
      Can coexist.

      Families is where our nation finds hope
      Where our wings take dream.
      Put food on your family!
      Knock down the tollbooth!
      Vulcanize society!
      Make the pie higher!
      Make the pie higher!

      -art major who reads too much slashdot

    7. Re:tl;dr by lopaka1998 · · Score: 1

      Really? The combination to my luggage is 1 2 3 4 5. http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=49180515

    8. Re:tl;dr by mobby_6kl · · Score: 3, Funny

      Phnglui mglwnafh Cthulhu R'lyeh wgahnagl fhtagn!

    9. Re:tl;dr by The+Grim+Reefer2 · · Score: 1

      We'll figure that out the same day as we find the 44th presidents 8 missing states; 7 of which he visited and had one left to go during the campaign.

    10. Re:tl;dr by sentientbeing · · Score: 1

      Another piece of luggage locked with a another secret code. A code far more fiendish and devilish than the last

      --

      ------
      beware he who would deny you access to information, for in his mind he dreams himself your master
    11. Re:tl;dr by Anonymous Coward · · Score: 0

      You're not supposed to combine ciphers. The combination could actually be weaker. For example, the combo make it even easier to open your luggage open with a chainsaw.

    12. Re:tl;dr by Anonymous Coward · · Score: 0

      Huh, that's funny. I heard you could also decode it with the numerical key: 4, 8, 15, 16, 23, and 42.

    13. Re:tl;dr by V!NCENT · · Score: 2, Funny

      13, 34, 57, 65, 22, 78, 49?! That's what an idiot would have on his luggage!

      --
      Here be signatures
    14. Re:tl;dr by V!NCENT · · Score: 1

      Yeah I never understood that :/ Asside from the fact that it creates more pattern into the encryption; it also makes the pattern more complex...

      --
      Here be signatures
  2. Wake me when the Voynich is cracked by netsavior · · Score: 5, Interesting

    the Voynich manuscript is a much more compelling and difficult mystery.

    1. Re:Wake me when the Voynich is cracked by Em+Emalb · · Score: 2, Funny

      Dude, the Voynich manuscript has been cracked.

      It's a variation of the GNAA first post troll.

      Sorry to burst your bubble.

      --
      Sent from your iPad.
    2. Re:Wake me when the Voynich is cracked by jd · · Score: 4, Insightful

      Perhaps, but there's no evidence that the Voynich manuscript is a cypher in the traditional sense. A natural language isn't normally "decyphered", since it was never encrypted in the first place.

      Given that there are many hundreds of thousands of natural languages today for which there is no written form, it's entirely possible that this is a script invented for such a language. In WW2, natural native American languages were sometimes used in this way as an "unbreakable cypher" - who's to say that medieval Europeans hadn't done the same thing themselves?

      If that is the case, then it isn't particularly compelling (we know of many extinct languages for which no known writing exists - and hundreds more go extinct yearly), and is not so much "difficult" as useless - the text could never be read.

      The wikipedia article doesn't say anything about using techniques to detect writing that is no longer visible, so I must assume no such techniques have been used.

      (It may be possible to establish some of the content of a missing page if the page after had been underneath at the time of writing. Non-destructive techniques for doing this formed a part of the case against the West Midland's serious crime squad in the 90s, where it could be shown pages of confessions had been altered after being signed. However, if no such analysis has taken place, the presence of such data is unknown.)

      Regardless, there are many missing pages. From the articles, the page numbers seem to be relatively new compared to the text, so we don't know how many pages are actually missing, we only know how many went missing since being numbered. This makes understanding the text very difficult and even if the text could be translated, there's no guarantee we could even read it or understand it without those pages.

      We know vastly more about Linear A than we do about the script on the Voynich manuscript, including the archaeology of the people writing Linear A, yet after all this time we've got no further than knowing the number system and a few of the numbers in it.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    3. Re:Wake me when the Voynich is cracked by VeNoM0619 · · Score: 2, Insightful

      Agreed, if someone handed us a (random) book written in Japanese (take your pick which writing style), do you think we could "decipher" it without knowledge of the Japanese language? The half backward sentence structure, the combinations of syllables into letters. Right to left, even bottom to top. Each word being spelled entirely different than our English word. Words having multiple meanings, and when combined with other words having even more unrelated meanings.

      It is more likely that the Voynich was written in a dead language written by a person hoping to preserve that language in some way.

      --
      Disclaimer: I am not god.
      We may not be created equal
      But we can be treated equal.
    4. Re:Wake me when the Voynich is cracked by netsavior · · Score: 3, Insightful

      First of all, The Voynich is only 500 years old(give or take), from a time when books were not uncommon, and was very very likely written in Europe, hardly pre-historic. This would be a person in Europe, with contemporary writing, art, and binding supplies, writing in a dead language not otherwise documented anywhere else. Linear A is like FOUR THOUSAND years dead... not really comperable.

      That is what makes it so compelling, the fact that it happened, not in a vaccum like the Aboriginal Amazon, not in ancient history like Linear A, not in Stone, or papyrus, or etched on tree bark, but that it happened inside of western society, using "modern methods" (for the day), and it is a language/code that can be verified as not being junk, but that nobody had seen before or since.

    5. Re:Wake me when the Voynich is cracked by MaskedSlacker · · Score: 1

      Possibly. It depends on the context in which the text is found. But it certainly wouldn't be easy without some clues to the nature of the grammar involved. Hieroglyphics were only figured out because of the Rosetta stone, while most of cuneiform is still incomprehensible.

    6. Re:Wake me when the Voynich is cracked by Yvanhoe · · Score: 1

      The other option is that it Voynich manuscript is nonsense. It could very well be the work of an insane illetrate man (or woman) who wanted to write a book and did.

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
    7. Re:Wake me when the Voynich is cracked by Darkness404 · · Score: 2, Informative

      But it still has lots of patterns that every language known has. Anyone can take a bunch of scribblings down and make it "seem" like a language, but the Voynich manuscript is unique that every part of it seems to be a language, not the work of someone insane.

      --
      Taxation is legalized theft, no more, no less.
    8. Re:Wake me when the Voynich is cracked by Yvanhoe · · Score: 3, Interesting

      Many words in one of the syllabic alphabet (katakana) have a pronunciation close to english, as they are foreign words phonetically transcribed in Japanese, like ko-n-pu-ta (computer)
      Even without that, it is easy to tell apart the complex ideograms and the syllabic characters, if only because of their frequency of appearance. There are some structures easy to spot : polite forms and declarative sentences end frquently by the same words, etc... There are many structures that are easy to spot. I suspect it is the case in any language. The Voynich doesn't appear to obey to any grammar structure. Such a problem ought to be easy : there is a whole book, presumably about plants, and we don't even manage to find a single common word in all these pages that could possibly mean "plant" ? Or "root" ? Or a single sentence structure common to many places ? My bet is on "nonsense written by someone who wished he could write and had an instability making him believe he could"

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
    9. Re:Wake me when the Voynich is cracked by jd · · Score: 2, Informative

      I quite agree. And Japanese isn't even the worst. There is a writing style where you alternatively write right-to-left then left-to-right. The dead language of Easter Island, Rongo-Rongo, goes one worse and even requires you to turn the page upside-down on alternate lines. (That's the ONLY thing anyone can understand of it.)

      The Wikipedia article states that some words are repeated three times, which strongly suggests that words can be modified not only by other words but by groups of other words. Quite a number of languages also have special symbols (determinants) which can completely alter the meaning of the word they're associated with.

      Others liberally mix alphabetic, syllabic and iconographic symbols - modern English is a good example of a language that does this. In some languages, the same character can be used in any or all of these forms, depending on the characters around them.

      I suspect you are correct in your conclusion that it was some (alas failed) attempt to preserve a dead language, which may also include my idea that such a language was being used as a secret language but is not restricted to that theory.

      It would be interesting to know which language it was, and where, but I'm not sure we'll ever get beyond the (fairly wide-ranging) language family already guessed at.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    10. Re:Wake me when the Voynich is cracked by jd · · Score: 1

      That is entirely possible, except that the frequency of character groupings and word groupings seem to match up with real-world natural languages.

      Of course, we know from J.R.R. Tolkien's work on Elvish that it's possible to create a "natural language" that fits perfectly with known patterns and yet has no existence in the real world outside of its creation.

      This would allow the script to both be nonsense and yet appear coherent to the sort of basic analysis that has been possible. It could even be done by someone who was quite insane. Illiterate would seem less likely, but I suppose is possible - you only need to be able to count and distinguish symbols to understand patterns, you don't need to know what the symbols mean. It would take an ubergeek of an illiterate, though. Mind you, most ubergeeks are insane and (as textspeak, 'leetspeak and lolspeak show) are quite capable of inventing their own languages.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    11. Re:Wake me when the Voynich is cracked by Nefarious+Wheel · · Score: 1

      Perhaps, but there's no evidence that the Voynich manuscript is a cypher in the traditional sense. A natural language isn't normally "decyphered", since it was never encrypted in the first place.

      I ran the Voynich text through a strange old Apple ][ assembler program an old friend once wrote. The results don't make sense to me, either. It starts:

      "Es Brillig war. Die schlichte toven warten und wimmelten in Waben. Alle mumsige war die Borgegoven, und die Momeraths ausgraben."

      --
      Do not mock my vision of impractical footwear
    12. Re:Wake me when the Voynich is cracked by Canazza · · Score: 3, Funny

      Lorem Ipsum dolor sit amet...

      --
      It pays to be obvious, especially if you have a reputation for being subtle.
    13. Re:Wake me when the Voynich is cracked by jd · · Score: 1

      Like I said, the UN is showing the number of endangered languages today to number in the hundreds of thousands. One can only imagine what the number was like 500 years ago, when empires routinely extinguished native languages.

      Linear A is indeed much, much older but we have the advantage of having many thousands of texts, the context, a better concordance and greater trust in the contents not having been altered.

      We know that the page numbers and some of the images are newer than the actual text, so we know that prior owners weren't above doodling. You'd need to to use X-Ray fluorescence or the detection of impressions on other pages to be certain none of the characters have been added or altered in some way, and I see no evidence such tests have been done.

      I have said elsewhere that it could be nonsense, but (as Spike Milligan and Lewis Carrol demonstrated) something can be nonsense and still not junk. The analysis done certainly does seem to show that it's not junk. I agree with you on that.

      I also agree it's not been seen before or since, which means that you have a sample size of one - insufficient for a useful concordance, as different uses for writing will produce different character frequencies. This appears to be a technical document, which will be very different from a work of poetry or a legal document.

      I do think it is a dead language, but because there are just so many of them (many without writing systems of their own, but any of which could have been given one by an interested proto-anthropologist or proto-historian), we'll likely never know which one it was.

      Not that we go great even when we do know which language it was. There are plenty of lost languages with plenty of samples of writing that are just as recent that we simply can't read and likely never will.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    14. Re:Wake me when the Voynich is cracked by Jurily · · Score: 2, Interesting

      Sumerian cannot be "completely" translated (whatever that means)

      At least we can try from a different perspective:

      At the same time, we have to realize that in certain instances it is truly very difficult, or even impossible to read the written text well and find its true meaning, even if we do have the knowledge of the rules of this writing and reading and also use the only good key leading there, which is the Hungarian language in establishing the sound values. After all, we are dealing with the spiritual heritage of a world of 4-5000 years ago; the workings of the minds of the people then was completely different from ours. This difficulty can be bridged only if we become thoroughly familiar with the belief system, statesmanship of the ages BC. It is for this reason that when we do translate a text we must sometimes add lengthy explanations to a given sentence. The following examples will clarify this statement.

      The Egyptian and Sumerian texts frequently use the following names of their Sungod: Égúr, Székúr, Kerek Úr, Napúr, Õsúr, Magúr, Útúr, Honúr, Szemúr, Égetõ Úr, Vörös Szemû and some at least twenty more expressions. Western scholars who are not familiar with the key-language understand only the Úr suffix of these words which they translate as God. They also believe that as many such words with Úr endings exist, that many gods were worshipped by the ancients. For them there is a God An, God Utu, God Sek and so on. Anyone familiar with the key-language and the ancients' religion will recognize these words as the names of the same Sungod; the ancients stressed one of the Sungod's characteristics and function by a given name. We may compare this practice to the Roman Catholic Church's practice to call God the Father in his creative capacity, the Son is his redemptive function and the Holy Spirit as his sanctifying function. We will fully understand the Sungod's many names if we are familiar with the concepts of the ancients concerning the Sungod. According to them, the sun, this heavenly body is God's visible picture. Since this picture appears round, they name him Kerek Úr (Round Lord). Since the Sun brightens everything and sees everything, like a giant eye another name of his is Szemúr (Occulate Lord). Since his eye is pairless, they call him Egyszemû (One Eyed), according to the sun's color Vörös Szemû (Red Eyed) and since the Sun resides in the sky they also called him Égi Szem or Égszem (Eye of Heavens). When they contemplated its immense heat they called him Égetõ Úr (Scorching Lord) and Sütõ Úr (Shining Lord). They also believed that he is the only Lord in his world so they called him Honúr (Lord of his Home) and Égi Király (King of Heavens). As they saw the apparent motion as he rises in the morning his name then was Ra-Kel (Ra rises), the rising on the eastern borders Kel-Út (The Road of Rising/East) where he sits down onto his chair: Szék-Úr (Lord of the Chair or the Seated/Settled Lord), later on he sits into his chariot and travels the shiny roads of the skies: Útúr (Lord of the Road) and when he finished his daily journey and reaches the west: Nyug-Út (Resting/Western Road) and as he sinks below the horizon: Esút, Este (The Falling/Evening Road, Evening). As we clarify this section of their belief everything becomes clearer and also realize that the ancients whose religion was connected with the Sun were never polytheistic, they only had one God.

    15. Re:Wake me when the Voynich is cracked by glwtta · · Score: 1

      Perhaps, but there's no evidence that the Voynich manuscript is a cypher in the traditional sense. A natural language isn't normally "decyphered", since it was never encrypted in the first place.

      Not true. All of the analysis so far suggests that the Voynich is not plaintext (from what I remember the ridiculously low entropy is one of the primary indicators). People like the whole "phonetic alphabet for [insert your favorite obscure Asian language]" idea because it sounds cool, but there is no evidence for it.

      Not sure I agree that we know vastly more about the people of Minoan Crete than those of 16th century Europe, though.

      --
      sic transit gloria mundi
    16. Re:Wake me when the Voynich is cracked by glwtta · · Score: 2, Insightful

      Hieroglyphs, dammit; 'hieroglyphic' is an adjective.

      --
      sic transit gloria mundi
    17. Re:Wake me when the Voynich is cracked by jd · · Score: 1

      The thing is, we know Linear A was indeed in Minoan Crete and we know a fair bit about Minoan Crete. Although we know a lot about 16th century Europe as a whole, it could be absolutely anywhere in Europe and the amount that is common across the whole of Europe back then was exceedingly small.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    18. Re:Wake me when the Voynich is cracked by Anonymous Coward · · Score: 0

      >>>- who's to say that medieval Europeans hadn't done the same thing themselves?

      ME. I love it when people confuse their romantic notions with fact. The printing press pretty much triggered the start of the end of total illiteracy. This was the Renaissance, after the medieval. To suggest that medieval Europeans were skilled writers AND clever enough to develop alternate character sets for symbols they didn't know how to write to begin with is a stretch.

      >>>(we know of many extinct languages for which no known writing exists - and hundreds more go extinct yearly)

      come on! stop repeating drivel, this is a made up number. 7 -10 a year might be closer.

    19. Re:Wake me when the Voynich is cracked by AhtirTano · · Score: 1

      Actually, natural native languages were not used as unbreakable cyphers. That's a myth. The code-talkers were trained to do this, and devised a code based on their language. (And actually, the program started in WWI and was so successful they revived it for WWII.) The Japanese figured out that Navajo was being used, and searched out Navajo speakers among POWs to translate. But because the code-talkers actually encoded their message during the translation into Navajo, even these POWs were unable to figure out what was going on.

    20. Re:Wake me when the Voynich is cracked by mattack2 · · Score: 1

      While your suggestion is the #1 entry, the #2 entry is the one people actually use, and it is listed a a noun.

      from m-w.com:
      Main Entry: 2hieroglyphic
      Function:
      noun
      Date:
      1586
      1: hieroglyph
      2: a system of hieroglyphic writing ; specifically : the picture script of the ancient Egyptian priesthood --often used in plural but singular or plural in construction
      3: something that resembles a hieroglyph especially in difficulty of decipherment

      (Wow, I was going to pick on 'dammit', and at least dictionary.com lists it.)

    21. Re:Wake me when the Voynich is cracked by Meumeu · · Score: 1

      The other option is that it Voynich manuscript is nonsense. It could very well be the work of an insane illetrate man (or woman) who wanted to write a book and did.

      Now that's ironic...

    22. Re:Wake me when the Voynich is cracked by VShael · · Score: 1

      "it's entirely possible that this is a script invented for such a language."

      Possible, but highly unlikely.

      One of the cool things about the manuscript is not just the script that the text is written in. It's the fact that the diagrams show both plants, and constellations, which are not known on earth.

      It could be a religious text (with someone describing what their idea of the next world is like) or it could be an elaborate fiction, like some proto D&D manual. Or it could just be a hoax of some sort. But it's unlikely to be just a invented script for an otherwise unscripted language.

    23. Re:Wake me when the Voynich is cracked by Yvanhoe · · Score: 1

      "A lot" ? All the references I could see were about letters frequency and some words that are repeated sequentially two or three times. If you have any source I would be happy to look into them, but I wonder if the "pattern" is anything more elaborated than a Markov chain on the letters, which the human brain is fairly good at emulating.

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
    24. Re:Wake me when the Voynich is cracked by Yvanhoe · · Score: 1

      Do you have a source about word groupings ? The wikipedia is weak on this one and seems to suggest that only characters frequency (and groups of two or three characters) have interesting characteristics...

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
    25. Re:Wake me when the Voynich is cracked by Yvanhoe · · Score: 1

      Children sometimes do that : in order to mimick adults, they "write" lines and pretend it means something. "What's that dear ? A dotted line ?" "That means 'I love you !' "

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
    26. Re:Wake me when the Voynich is cracked by richlv · · Score: 1

      i just imagined future historians spending decades on that text and wondering why was it reproduced in so many locations like a mantra

      --
      Rich
    27. Re:Wake me when the Voynich is cracked by leenks · · Score: 1

      whoosh

    28. Re:Wake me when the Voynich is cracked by netsavior · · Score: 1

      if you are interested, Yale (who currently owns the manuscript I believe) has high res images, and more information: Here Hey, it is a very poorly laid out website, but it is Yale not Wiki, so there is that :P

    29. Re:Wake me when the Voynich is cracked by PearsSoap · · Score: 1

      it certainly wouldn't be easy without some clues to the nature of the grammar involved.

      Rai of Lowani and Jiri of Ubaya at Lungha: Sokath, his eyes uncovered.

      Rai of and Jiri at Lungha: The beast at Tanagra.

      Kadir beneath Mo Moteh.

    30. Re:Wake me when the Voynich is cracked by KDR_11k · · Score: 1

      Not necessarily insane, illiterate people sometimes develop their own writing system to keep track of things, these often end up vastly more complex than regular text.

      --
      Justice is the sheep getting arrested while an impartial judge declares the vote void.
    31. Re:Wake me when the Voynich is cracked by mmontour · · Score: 1

      (Wow, I was going to pick on 'dammit', and at least dictionary.com lists it.)

      What's wrong with that? "Dammit" is a cromulent word.

    32. Re:Wake me when the Voynich is cracked by jd · · Score: 1

      Lord Baden-Powell, founder of the boy scout movement, was a spy for the British Army. He encoded maps of enemy encampments as decorations on butterfly wings. Were those maps found 500 years from now with no context, they'd appear to be insects which are not known on Earth.

      I'm not saying this is the case here, merely that we can't trust what we assume we know merely because the assumption looks like it might be right. If it didn't look right, it wouldn't be assumed. It doesn't make the assumption reliable.

      Another example would be the Sumerian cuneiform for house. It's a tent peg. True, we know what tent pegs are, but the Sumerians had abandoned nomadic living 500-1000 years before they developed writing. If we went by what they knew, we'd never be able to reconcile what they drew with what was present.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  3. just cracked?? by macxcool · · Score: 5, Informative

    A code expert just cracked a code

    The article says "After unlocking its hidden message in 2007". This is hardly 'just'. The solution was more recently published though. Interesting article.

    1. Re:just cracked?? by gEvil+(beta) · · Score: 5, Insightful

      What? You actually expect the article submitter to RTFA?

      --
      This guy's the limit!
    2. Re:just cracked?? by bitt3n · · Score: 4, Funny

      A code expert just cracked a code

      The article says "After unlocking its hidden message in 2007". This is hardly 'just'. The solution was more recently published though. Interesting article.

      he's obviously using the same definition of "just" that I use when I tell my wife I just took out the garbage so get off my back

  4. Contents of message by wjousts · · Score: 5, Funny

    "Hey Jefferson, you might want to try keeping it in your pants. I saw that slave girl today and she's starting to show. People will start asking questions."

    1. Re:Contents of message by fuzzyfuzzyfungus · · Score: 2, Insightful

      Going by the fact that you got modded "troll" rather than "funny" I'd say that somebody is clinging to the American history they learned in elementary school a little too hard...

    2. Re:Contents of message by dkleinsc · · Score: 1

      Here I was expecting the message to read

      "We apologize for the inconvenience."

      --
      I am officially gone from /. Long live http://www.soylentnews.com/
    3. Re:Contents of message by rubycodez · · Score: 1

      really, I has born in the early 60s and mention was made in public school before 7th grade Jefferson fathered children by his enslaved women.

    4. Re:Contents of message by ChrisMaple · · Score: 2, Informative

      The DNA evidence for this claim is inconclusive because it does not eliminate other members of Jefferson's family. In particular, one close relative had a poor reputation, and is a likely candidate for this misbehaviour.

      --
      Contribute to civilization: ari.aynrand.org/donate
    5. Re:Contents of message by AhtirTano · · Score: 1

      Except that many people came to the conclusion that he was the father before the DNA evidence, based on where he was and how he behaved around the time of the birth, the way he treated that slave family relative to others, and so forth. The DNA evidence was just the icing on the cake.

    6. Re:Contents of message by TheLink · · Score: 1

      > I has born in the early 60s

      O RLY?

      I can has you born in the early 80s or 90s. :)

      --
    7. Re:Contents of message by qc_dk · · Score: 1

      I think the two posters above are pretty cool guys. Teyh don't use grammar and doesn't afraid of anything.

  5. Security by obscurity by Anonymous Coward · · Score: 0

    I think it would have been much harder if the author had not included an indication as to what code algorithm he used in the letter accompanying the coded message.

    So, your suggesting security by obscurity?

    1. Re:Security by obscurity by phantomfive · · Score: 5, Insightful

      Obscurity IS a level of security, which is good, but it's only one level. Hopefully you have a security system that is robust enough that even when the obscurity is pierced, it is still secure. In the past when people complain about Microsoft depending on security through obscurity, they were referring to the fact that Windows was at one time so insecure that it was only a matter of obscurity that gave it any security at all. That isn't to say obscurity is all bad for security.

      In this case, unless you knew the key, it would have been extremely time consuming to discover the solution, even if you knew the algorithm used. Notice it took the guy a week to solve it, even with a computer, and modern cryptanalysis techniques.

      --
      Qxe4
    2. Re:Security by obscurity by Anonymous Coward · · Score: 0

      Obscurity IS a level of security, which is good, but it's only one level. Hopefully you have a security system that is robust enough that even when the obscurity is pierced, it is still secure.

      No. Obscurity is hiding information and hoping that someone won't find it - that's not secure in any way shape or form.

      People like you believe that passwords are "obscurity", when they're not - at least not in any well-designed system. The only way a password would be considered obscurity is if the password file was stored in plaintext on the filesystem, with only the filename to protect it. (Fortunately, most smart systems don't store the passwords at all.)

    3. Re:Security by obscurity by Repossessed · · Score: 1

      So you're saying, that when i changed my SSH port, the sudden halt in bots trying to login over SSH suddenly stopping was pure coincidence?

      Obviously that doesn't do anything to protect me against directed attacks, but obscurity does a heck of a lot to protect against undirected attacks which are the majority of exploits these days.

      --
      Liberte, Egalite, Fraternite (TM)
    4. Re:Security by obscurity by Anonymous Coward · · Score: 0

      Ask the nearest sniper or B-2 pilot how well obscurity works.

    5. Re:Security by obscurity by ground.zero.612 · · Score: 1

      changing ports is not obscurity.
      port knocking is.

      Nice try though.

      --
      "Be prepared, son. That's my motto. Be prepared." --Joe Hallenbeck
    6. Re:Security by obscurity by AvitarX · · Score: 2, Insightful

      I don't know, port knocking starts to sound like a password to me.

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    7. Re:Security by obscurity by Anonymous Coward · · Score: 0

      Sounds more like some sort of kinky sex to me...

    8. Re:Security by obscurity by Repossessed · · Score: 2, Insightful

      Port knocking is a form of password in essence. I can know everything about the method of security, but without the actual sequence it does me no good.

      Changing ports on the other hand, requires at the absolute most for me to brute force all ~32k ports, there are port mapping tools that will do it much more simply. Thus obscurity, since once I know what the method is, I can break it easily.

      --
      Liberte, Egalite, Fraternite (TM)
    9. Re:Security by obscurity by Junior+J.+Junior+III · · Score: 1

      Obscurity IS a level of security

      Only for so long as it's actually obscure.

      And, also, with computer things, there are a lot of things that people commonly assume are obscure, but which, in fact, are not. So be careful what you take to be obscure. It could be that it's a secret to everybody.

      --
      You see? You see? Your stupid minds! Stupid! Stupid!
    10. Re:Security by obscurity by Anonymous Coward · · Score: 0

      A password system of m symbols from an n-char alphabet requires at the absolute most for me to brute-force all ~n^m possible sequences. Thus obscurity, since once I know what the method is, I can break it easily.

      Alternatively, using a non-standard port may be considered a password of ~15 bits. I can know everything about the method of security, but without the port number it does me no good.

    11. Re:Security by obscurity by dlgeek · · Score: 1

      Yes, but say a 20 port sequence for port knocking is the equivalent (2^16)^10 = 2^160 keys. That's pretty hard to bruteforce, and any sane portknocking system would block you before you got anywhere close

    12. Re:Security by obscurity by dlgeek · · Score: 1

      Err, that was obviously a 10 port sequence. A 20 port sequence would be 2^320.

    13. Re:Security by obscurity by Anonymous Coward · · Score: 0

      I'll explain, the point of port knocking vs a password prompt is that it's impossible for an attacker to tell if there even *is* an authentication mechanism for something. It's security through obscurity yes, but also not, because the sequence of port "knocks" can be just as varied as a password. That's why port knocking is a perfect way to set up hidden services, that cannot be detected by port scanning.

    14. Re:Security by obscurity by Anonymous Coward · · Score: 0

      Obscurity IS a level of security, which is good, but it's only one level. Hopefully you have a security system that is robust enough that even when the obscurity is pierced, it is still secure. In the past when people complain about Microsoft depending on security through obscurity, they were referring to the fact that Windows was at one time so insecure that it was only a matter of obscurity that gave it any security at all. That isn't to say obscurity is all bad for security.

      Tell it to Mary Queen of Scots. In some cases, the very existence of obscured content is incriminating.

    15. Re:Security by obscurity by AvitarX · · Score: 1

      unless of course your password is 123456, as then it will be found instantly.

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    16. Re:Security by obscurity by shrikel · · Score: 1

      Thus obscurity, since once I know what the method is, I can break it easily.

      Well, duh, because he just told you, so it's no longer obscure. The whole idea is that others DON'T know what the method is. Even if you do figure it out though, you still have more levels to get through. Password, etc.

      Security through obscurity is not sufficient, but it can be an important part/em of an effective security solution.

      --
      Any sufficiently simple magic can be passed off as mere advanced technology.
    17. Re:Security by obscurity by Repossessed · · Score: 1

      Thats exactly what I'm arguing. Specifically that obscurity protects against certain styles of attack.

      --
      Liberte, Egalite, Fraternite (TM)
    18. Re:Security by obscurity by Repossessed · · Score: 1

      Which is why I deny port knocking is security through obscurity. Its actually a glorified password, with the advantage of being immune to certain password weaknesses (nobody can make their password 'password' for example) and with different weaknesses instead (a port knock sequence has to be stored somewhere instead of memorized).

      --
      Liberte, Egalite, Fraternite (TM)
  6. Message by Anonymous Coward · · Score: 0

    What was the message after all??

  7. Biggest letdown ever by basementman · · Score: 1

    "In Congress, July Fourth, one thousand seven hundred and seventy six. A declaration by the Representatives of the United States of America in Congress assembled. When in the course of human events..." Why even bother writing a code to tell someone that?

    1. Re:Biggest letdown ever by Anonymous Coward · · Score: 0

      Why even bother writing a code to tell someone that?

      RTFA.

    2. Re:Biggest letdown ever by 0racle · · Score: 3, Insightful

      Most likely for the reason that was presented at the end of the article, it was for a bit of fun. It was meant to be an exercise in cryptography, by enciphering something Jefferson knew, he would know when (if) he deciphered it correctly.

      --
      "I use a Mac because I'm just better than you are."
    3. Re:Biggest letdown ever by Anonymous Coward · · Score: 1, Funny

      I know, I was expecting something profound like "drink more ovaltine please".

    4. Re:Biggest letdown ever by deepershade · · Score: 1

      Because he wasn't passing on a secret message, he was merely demonstrating his cipher.
      If you'd read the article you'd know that.

    5. Re:Biggest letdown ever by FlyingBishop · · Score: 1

      The article said he took some liberties. I'm rather interested to know if those were in any way interesting.

      Anyone have a copy of the actual paper?

    6. Re:Biggest letdown ever by Cross-Threaded · · Score: 2, Funny

      You'll shoot your eye out kid...

      --
      They call us sheeple, I wonder why?
    7. Re:Biggest letdown ever by pbhj · · Score: 1

      Perhaps it's hiding a stegonagraphic code - perhaps "pwned!"?

      Or was that: "In Congress, July Fourth, one thousand seven hundred and seventy six. A declaration by the Representatives of the United States of America in Congress assembled. When in the course of human events..." the entire plaintext? (that would make it a more awesome achievement as it's very short).

      What's the relevance of the excision of "General" from Jefferson's original.

  8. This is a textbook example of Schneier's Law by WhiteDragon · · Score: 2, Insightful
    --
    Did you mount a military-grade, variable-focus MASER on an unlicensed artificial intelligence?
    1. Re:This is a textbook example of Schneier's Law by Anonymous Coward · · Score: 0

      ...

      And this is a a textbook example of Goodwin's law: Using wikipedia links to state so called laws is so 3rd Reich.

    2. Re:This is a textbook example of Schneier's Law by Kj0n · · Score: 1

      You forgot the link.

  9. And the message said: by wxjones · · Score: 1

    All your base are belong to us!

    --
    My SIG is a P226
  10. lotto... by Narnie · · Score: 2, Funny

    After about a week of working on the puzzle, the numerical key to Mr. Patterson's cipher emerged -- 13, 34, 57, 65, 22, 78, 49.

    This week's lotto numbers, here I come!!!

    --
    greed@All_Evils:~#
    1. Re:lotto... by 2names · · Score: 1

      I put the numbers into OO Spreadsheet as A1:A7, and applied the following: =((ROUNDDOWN((A1+A2)/A3)+A4-(ROUNDUP((A5*A6)/A7))+A1))

      It's everywhere!

      --
      "I'm just here to regulate funkiness."
    2. Re:lotto... by Keeper+Of+Keys · · Score: 2, Insightful

      Given that these numbers have just come to light, in the incredible coincidence that they also happen to be this week's winning lottery numbers you'll win less money because you'll have to share your winnings with all the other wrong-headed people who think this increases their likelihood. (I am having strenuously to fight my intuition, which is telling me that they are now *less* likely to come up.)

    3. Re:lotto... by that+IT+girl · · Score: 1

      Only on Slashdot would you specifiy that it was an OO spreadsheet, not to be confused with evil Excel owned by evil Microsoft ;)
      I love it!

      --
      10 FILL MUG WITH COFFEE
      20 DRINK COFFEE
      30 GOTO 10
  11. The article says by sammykrupa · · Score: 0

    That the code's creator, Patterson, " estimated that the potential combinations to solve the puzzle was "upwards of ninety millions of millions."

    First of all, I take this to be 90 trillion. But I am wondering if he is correct. Any thoughts?

  12. The trick was finding the decoder ring by rev_sanchez · · Score: 4, Funny

    The message was: "Be sure to drink your Ovaltine."

    --
    If you didn't come to party don't bother knocking on my door. Prince '1999'
    1. Re:The trick was finding the decoder ring by inviolet · · Score: 1

      Here, I'll save you a mouseclick and entirely too much reading to find the plaintext.

      The actual plaintext was the text of the declaration of independence. The cryptologist who wrote the letter was just showing off his new cipher.

      --
      FATMOUSE + YOU = FATMOUSE
  13. An interesting cypher system by jd · · Score: 1

    It wasn't nearly as strong as the author thought, but was still strong enough to resist cryptographers for a long time. That's impressive.

    I wonder, though. There's a certain level of indirectness and jitter in the system used, but not enough to raise the complexity even to the single millions, let alone the millions of millions. Would it be possible to increase the strength of the system and still have it memorizable and usable by any person in the field without book, computer or other aid?

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    1. Re:An interesting cypher system by Anonymous Coward · · Score: 0

      Solitaire is a modern cipher designed to be implementable without computer aid while still being pretty strong (certainly not a replacement for AES, but not bad). The only catch is that it gets that strength by using a deck of cards as the algorithm's memory.

  14. Should Have Known Types of Codes in Use by Nom+du+Keyboard · · Score: 1

    Even if the key to this exact code wasn't known, you'd think that all of the types of codes in use at that time would have been known and only a lack of interest kept this one from being cracked much earlier.

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
    1. Re:Should Have Known Types of Codes in Use by Anonymous Coward · · Score: 0

      Obviously, it wasn't Nom du Keyboard who finally cracked the code.

  15. Fine, but... by 93+Escort+Wagon · · Score: 3, Funny

    ... it's not going to do much good for President Jefferson at this point.

    --
    #DeleteChrome
  16. Like I said yesterday, crypto, do or don't: DON"T by Anonymous Coward · · Score: 0

    It's just a waste of effort to use crypto, as this story supports. It's all one big waste of time, effort, and manpower.

  17. Could have been done earlier by houghi · · Score: 5, Funny

    ... but they had to wait for the copyright to expire.

    --
    Don't fight for your country, if your country does not fight for you.
  18. He used a computer by tkioz · · Score: 2, Interesting

    He used a computer, he cheated. If he really wanted to work out it as a test of skill he should of used only tools people in that time had.

  19. The message by twigusa · · Score: 1

    The message read: Just abolished the slave trade. With any luck, we'll soon have a black president...

  20. Zodiac Killer 360 by Korey+Kaczor · · Score: 5, Interesting

    The elusive Zodiac Killer's 360 character cipher was never cracked, either, and it's been decades since he mailed it to newspapers. That cipher also seems a bit grid-like, with spacing made deliberately in rows. I wonder if this method would help, at least in part, in cracking it?

    If anything, would be nice to see something come up to ascertain his identity, and if alive, put him behind bars.

    1. Re:Zodiac Killer 360 by Anonymous Coward · · Score: 0

      Given the Zodiac's history of deception and mocking the authorities, I wouldn't be particularly surprised if his final hurrah was random gibberish made out to resemble his codes.

    2. Re:Zodiac Killer 360 by Korey+Kaczor · · Score: 1

      That's likely. But I think it fits in more with the serial killer MO to actually have a message encoded, just one that other people are "too stupid" to read. A form of power over others, as SKs are apt to be like, that wouldn't be gained by gibberish.

      Plus the alignment is too methodical for a somewhat sloppy SK like zodiac.

    3. Re:Zodiac Killer 360 by muckracer · · Score: 1

      I am a Serial Killer and I approve of this message! :-D

    4. Re:Zodiac Killer 360 by Anonymous Coward · · Score: 0

      It's very likely that the Zodiac was Arthur Leigh Allen, who is long dead.

      appropriate captcha is appropriate

    5. Re:Zodiac Killer 360 by juan2074 · · Score: 1

      I don't know if you saw the movie, but the killer was Drew Carey's brother.

  21. Jefferson wrote the Declaration of Independence by tyrione · · Score: 4, Interesting

    He wrote the entire draft. The only parts that changed were minute portions and the choice of language he used was replaced by less forceful language for fear of being too alienating to the common man. The WSJ cites him as a contributor. The author needs to read Jefferson's letters. It's right in there. I suppose Stephen King or any other author should be called a contributor to their work after an Editor comes in and helps modify it.

    1. Re:Jefferson wrote the Declaration of Independence by bill_mcgonigle · · Score: 1

      The only parts that changed were minute portions and the choice of language he used was replaced by less forceful language for fear of being too alienating to the common man.

      If only it were. Jefferson condemns slavery, in his draft, for one. The omission of a prohibition on slavery from the Country's final documents was one he warned would be paid for in blood. And it was, terribly.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    2. Re:Jefferson wrote the Declaration of Independence by tyrione · · Score: 1

      The only parts that changed were minute portions and the choice of language he used was replaced by less forceful language for fear of being too alienating to the common man.

      If only it were. Jefferson condemns slavery, in his draft, for one. The omission of a prohibition on slavery from the Country's final documents was one he warned would be paid for in blood. And it was, terribly.

      Very true, but I was referring to the rightful and just angst against Christianity that was mellowed. The slavery was not only axed but a deal breaker, so he being a diplomat compromised for the greater benefit of the revolution and made it clear his positions for history to research and restore.

  22. Not a strong cipher. by jonadab · · Score: 2, Informative

    The only reason it's not been solved until now is because no serious cryptanalyst was working on it. As soon as I read the description of how it's done, I knew it would be highly vulnerable to a known-plaintext attack. (The guy who cracked it used frequency analysis of letter pairs, because there was no known plaintext available. But if someone were using the cipher on a regular basis, there would be.)

    --
    Cut that out, or I will ship you to Norilsk in a box.
  23. Good thing... by Anonymous Coward · · Score: 0

    ...I put all my net accessable ports in the upper 32k, not the lower.... ooops.

  24. Jefferson's ghost appeared by PPH · · Score: 1

    ...muttering something about the DMCA.

    --
    Have gnu, will travel.
  25. And it said.... by DeadboltX · · Score: 0, Redundant

    Don't forget to drink your Ovaltine!

  26. Voynich is easy. Try and decipher this.... by Anonymous Coward · · Score: 0

    "Society is intrinsically meaningless," says Lacan; however, according to Long[1] , it is not so much society that is intrinsically meaningless, but rather the failure of society. But if rationalism holds, we have to choose between textual postcultural theory and modern appropriation. The premise of postcapitalist materialism suggests that the task of the artist is significant form. However, any number of theories concerning not discourse, but subdiscourse may be found. The primary theme of Hamburger's[2] analysis of Derridaist reading is the role of the participant as observer.

    But the subject is contextualised into a that includes narrativity as a reality. Lyotard suggests the use of postcapitalist materialism to analyse class.

    Therefore, the fatal flaw, and eventually the rubicon, of rationalism prevalent in Rushdie's The Ground Beneath Her Feet is also evident in The Moor's Last Sigh.

    However, the subject is interpolated into a that includes truth as a whole. Lyotard suggests the use of neocultural situationism to read and analyse language.

    1. Re:Voynich is easy. Try and decipher this.... by arcsimm · · Score: 1

      No shit... I'm taking a (required) summer course on architectural theory and my eyes were permanently crossed by the time we got to Heidegger. What's all this about "the thinging of things?" I'll stick with Vitruvius, thanks.

      As for the Voynich Manuscript, the only explanations that make sense to me are that it's a constructed language of some kind, or an elaborate joke played on us by our Renaissance-era European forbears. Though I do like XKCD's "RPG handbook" theory...

    2. Re:Voynich is easy. Try and decipher this.... by Anonymous Coward · · Score: 0

      Is that from one of Randall's papers?

  27. What took so long? by saltydog56 · · Score: 1

    The article said he had this all figured out in 2007 - yet the details of this cypher are just now being published in July 2009. What took so long - the quest to gain ITAR compliance?

  28. Re:Like I said yesterday, crypto, do or don't: DON by muckracer · · Score: 1

    > It's just a waste of effort to use crypto, as this story supports.
    > It's all one big waste of time, effort, and manpower.

    Crypto is like a lock (not by coincidence the symbol frequently used to indicate use of crypto IS a lock). A lock is not a once-and-forever solution, but defined in physical security circles correctly as a "time-delay device". With other words, given enough time any lock will be circumvented...broken if you want. Likewise with crypto.

    BUT, with a human lifespan somewhere around 80 years (YMMV), a lock that protects your secrets/valuables long enough for it not to matter anymore to you or even your next couple offspring-generations has, IMHO, more than fulfilled its purpose. Even governments likely would have little need for protecting secrets longer than that.

  29. BagleTechNews by Anonymous Coward · · Score: 0

    ..."Thomas, thou art bereft of milk, I shall venture to thy mall and purchase more"

  30. Re:Like I said yesterday, crypto, do or don't: DON by drinkypoo · · Score: 1

    Even governments likely would have little need for protecting secrets longer than that.

    I disagree. There are numerous crimes for which there is no statute of limitations, and in the court of public opinion, there is no such thing anyway; only those things which the public forgets.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  31. Poetry in motion (shift... that is) by BForrester · · Score: 0, Redundant

    Make the pie higher

    I think we all agree, the past is over.
    This is still a dangerous world.
    It's a world of madmen
    and uncertainty!
    and potential mental losses.

    Rarely is the question asked
    Is our children learning?
    Will the highways of the internet
    become more few?
    How many hands have I shaked?

    They misunderestimate me.
    I am a pitbull on the pantleg of opportunity.
    I know that the human being and the fish
    can coexist.

    Families is where our nation finds hope
    Where our wings take dream.
    Put food on your family!
    Knock down the tollbooth!
    Vulcanize society!
    Make the pie higher!
    Make the pie higher!

  32. Re:Like I said yesterday, crypto, do or don't: DON by muckracer · · Score: 1

    >> Even governments likely would have little need for protecting secrets longer than that.

    > There are numerous crimes for which there is no statute of limitations,
    > and in the court of public opinion, there is no such thing anyway

    Of course any real democratic government shouldn't be using locks/crypto in the first place, to protect its dirty secrets from its own public that they represent and work for.

  33. Old News by RockDoctor · · Score: 1

    This story was published in (IIRC) American Scientist a month or two ago. Yep, here we go : A Cipher to Thomas Jefferson.

    Loath though I am to send money to America, I do find myself strongly tempted to subscribing to that magazine. Seriously good brain-fodder.

    --
    Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"