Talk:Cipher

message: Encryption and Cipher are currently too similar. They should be merged, or Cipher should be specialized to the customary (though vague) subset of private-key encryption. — Preceding unsigned comment added by Tromer (talk • contribs) 05:26, 22 February 2004 (UTC)
thread_title: Merge request

message: While I'm a crypto-head and so probably biased, I do think there's a case for primary disambiguation here. I think any user typing in "cipher" is most likely to be looking for the encryption algorithm meaning, as opposed to a synonym for zero, or a Pokemon team of villains, or any of the other meanings. — Matt Crypto 11:33, 15 November 2006 (UTC)
thread_title: Disambiguation

message: In hebrew/arabic "sifar" ספרה means "numerical digit". Thus, given the the fact that Hebrew culture has always had interest in such subjects as Numerology, the source of the word may have also come from that direction. Bilbobugginz (talk) 05:15, 14 July 2008 (UTC)
thread_title: Etymology

message: Encipherment does not contain enough information to stand on its own.  It should be merged into this article.
Neelix (talk) 01:07, 6 May 2008 (UTC)
replies: text: Huh? It's a redirect to this page. --84.250.188.136 (talk) 03:24, 9 May 2008 (UTC)
replies: text:  It wasn't when Neelix wrote the above. — Matt Crypto 05:22, 9 May 2008 (UTC)
replies: text:   -- TNKS, Narnia.Gate7 (talk) 18:50, 4 May 2014 (UTC)
thread_title:  Merge with [[Encipherment]] 

message: Hello, hope I'm doing this right, am new at it.   Just writing to suggest something.  Ciphers are often said to be either transposition, or substitution, or both; but there's also one appearing in Dorothy Sayers mystery novel, "The Nine Tailors," that, strictly speaking, is neither, for it embeds the plaintext message - without substitution, and without rearrangement - within a cover message (the key being a "change ringing" method for church bells).  Can't stay to pursue this, but anyone's welcome to take it up.
Boinkles (talk) 17:52, 24 August 2009 (UTC)
replies: text: Steganography? — Matt Crypto 20:15, 24 August 2009 (UTC)
thread_title:  Another Type of Cipher 

message: Under "Modern ciphers," it is written "Figure it out. 1554-275 0 13-64799 0-0". Assuming I have no background in cryptology and have come to Wikipedia out of curiosity on this subject, where would I begin in my work to solve what is apparently meant to be an example of a cipher?
BlewJ (talk) 08:50, 21 August 2011 (UTC)
thread_title: Example?

message: Headline-1: Computer Engineer Cracks 150-Year-Old 'Odyssey' Code
* http://washingtonexaminer.com/computer-engineer-cracks-150-year-old-odyssey-code/video/gm-5274371
QUOTE: "For years, researchers have been trying to translate a series of mysterious notes in a copy of Homer's 'The Oyssey,' and someone finally did it." -- AstroU (talk) 15:19, 7 May 2014 (UTC)
replies: text: Not a likely addition to this article. It turns out that these were shorthand notes in French dealing with translating Homer's greek. No secret, no mystery and definitely not a cipher. Bill Cherowitzo  (talk) 05:42, 8 May 2014 (UTC)
replies: text: Agreed.  It was very interesting to me that they used Google-search as one of the tools to break what they thought was a cipher.  So it was more of a code than a cypher. AstroU (talk) 13:33, 8 May 2014 (UTC)
thread_title:  Current new News 

message: And we generate 1 initial list of minimum size of constant digits. Then we copy that list and create 20 more lists which have larger size of digits (the list two has labels which are one more digital longer than list 1, list 3 has labels which are one digit longer than list 2 etc)
Remember. Your list must be random "Uranus is my favorite planet." could be labeled as "0" and "#" could be labeled as "1". Labeling mustn't follow any logical order.
Then sometimes we introduce noise of certain digital length.
So the key could be:
34, 24, 68, 45, 13, 42 (with 68 and 42 as random insertions which have length 68 digits and 42 digits.)
 34, 24, 68, 45, 13, 42 means select the labeling from the list 34 then from the list 24, add random noise for 68 digits etc.
But I didn't mention you how to "compress read" the initial text in order it fits your lists.
That method generates insanely huge files - but some prefer it.
You have to combine it with other cipher methods and make a system for list shuffling.  — Preceding unsigned comment added by 2A02:2149:8464:BA00:BCE5:B794:8895:1FC4 (talk) 15:12, 15 February 2018 (UTC)
thread_title:  You mentioned only 1 letter by 1 letter cipher but a good randomized cipher ciphers a huge list of English phrases with code numbers (which are only code numbers and have absolutely nothing to do with the size of the phrase) - the mechanism of selecting their labeling also has to be changeable - it works well ONLY if we combine that method with others 

message: * 1 meaning (letter of phrase) = 20 alternative ciphers of different size
*: and 3 noise entries of different size
*: 20 and 3 is relative, you mustn't be strict with that because that would be a hint
* then you give a code so the person who reads your message knows the series of the variant sized lists, because each fragment of information corresponds to a different sized list in order we decipher it (also some series of data are pure noise, and we know their size because we have the key
** I didn't tell how we compress the initial information in order it fits on our fragmentational system (cue other lists do the job/list labeling must shufflable if needed/that system works fine only if you combine it with other ciphering methods).  — Preceding unsigned comment added by 2A02:2149:8464:BA00:BCE5:B794:8895:1FC4 (talk) 15:25, 15 February 2018 (UTC)
thread_title:  variant size of atlernative labeling + noise at some labeling series 

message: War cipher has basic phrases and topography. Time codes and basic actions.
for example the military E-mail: "&+d" could be phrase deciphered as a huge text 
*".. in the past also was tried to use sending time itself (seconds, because one cannot waste an hour) but it's usually (it depends on the system) considered unsafe "
*Also you might have the ability to send the information from many "towers" and the receiver might have the ability to understand which one was used. That alone is an information. - that is also unsafe if your correct tower is compromised (physical cipher is prone to physical or systemic error, usually at a higher rate than other code errors)  — Preceding unsigned comment added by 2A02:2149:8464:BA00:BCE5:B794:8895:1FC4 (talk) 15:38, 15 February 2018 (UTC)
thread_title:  War cipher with phrase cipher 

message: — Assignment last updated by LesserGoldfinch (talk) 22:32, 16 February 2023 (UTC)
thread_title: Wiki Education assignment: Introduction to Information Studies