Ciphers & Puzzles
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Cryptologist Cryptology - (krip tal' e je) n. the study of secret codes or ciphers and the devices used to create and decipher them. - Webster's New World College Dictionary, Fourth Edition. As a cryptologist you will be responsible for devicing a code for your spy letter. The following websites should be helpful to you in determining your code.
Codes and Ciphers
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Art, research & theory / exploring the art & mind connection Extending the Synesthetic Code: connecting synesthesia, memory and art lecture by Dr. Hugo Heyrman, March 2007. Art and Synesthesia: in search of the synesthetic experience lecture by Dr. Hugo Heyrman, presented at the 'Primer congreso internacional sobre arte y sinestesia / First International Conference on Art and Synesthesia in Europe' , University of Almería, the International Foundation Artecittà, and Cuevas de Almanzora, Spain, 25-28 July 2005.
Ciphers & Puzzles
Ciphers & Puzzles
This page is for amusement only. Instructions are given below this form. instructions: Enter the string to encrypt or decrypt in the Input field (you may copy and paste it from another text editor). Enter the key in the Key field. (You may use any sequence of characters, but only alphabetic characters will actually be processed.
This utility is the counterpart to the Steganography encoding utility here . Go encode an image to use here if you haven't already. This utility and its counterpart are based on the cool cryptographic tool created by Lenny Domnitser which lets you hide arbitrary text inside of an image using the black art of steganography Steganography is the art and science of writing hidden messages in such a way that no one apart from the sender and intended recipient even realizes there is a hidden message. Get the most recent version of Lenny's Stepic code here . <p style="text-align:right;color:#A8A8A8"></p>
This cache series is designed to give you an introduction to the world of ciphers. It will not cover every type of cipher out there, instead focusing on a small variety of different ciphers. Hopefully, you will walk away from solving this series with a new set of puzzle solving skills. And maybe, just maybe, you'll be able to go to that puzzle that's always bothered you and begin to see it with a new pair of eyes. I have designed this series such that you will not be able to solve them all in one swipe.
When looking at the steganographic tools available on the Net, it occurred to me that nothing had been done to hide information in MP3 files, that is sound tracks compressed using the MPEG Audio Layer III format. There is a growing interest world-wide in MP3 or indeed WMA files because they offer near-CD quality at compression ratio of 11 to 1 (128 kilobits per second). This gives a very good opportunity for information hiding . Although WMA has better quality in general, I did not have access to code and only an implementation for MP3 is provided as a proof of concept . MP3Stego will hide information in MP3 files during the compression process.
When I wrote my first book, Fermat’s Last Theorem, I made a passing reference to the mathematics of cryptography. Although I did not know it at the time, this was the start of a major interest in the history and science of codes and code breaking, which has resulted in a 400-page book on the subject, an adaptation of the book for teenagers, a 5-part TV series, numerous talks and lectures, the purchase of an Enigma cipher machine and the development of an interactive crypto CD-ROM. In the Crypto Corner, you will find details about my book on cryptography ( The Code Book ), information about my TV series based on the book ( The Science of Secrecy ) and you can explore the Black Chamber , which is an interactive encryption and codebreaking section. You will also find a section about the Cipher Challenge , there are some cryptograms (coded messages) for you to try and crack, a free downloadable CD-ROM version of The Code Book, and a quick Q&A based on the questions I am most often asked.
One variation to the standard Caesar cipher is when the alphabet is "keyed" by using a word. In the traditional variety, one could write the alphabet on two strips and just match up the strips after sliding the bottom strip to the left or right. To encode, you would find a letter in the top row and substitute it for the letter in the bottom row. For a keyed version, one would not use a standard alphabet, but would first write a word (omitting duplicated letters) and then write the remaining letters of the alphabet. For the example below, I used a key of "rumkin.com" and you will see that the period is removed because it is not a letter.
“For me the magic moment came on page 2 where the green picture could mean any of three things. I identified the picture almost at once but could not see in which of the three directions it might go. And I knew that I had to find out!” “This should come with a warning label on it. ...It's highly additive.
Puzzled residents across Yorkshire are turning detective after mysterious stone heads were left outside their properties in the dead of night. The sculptures feature the same carved symbol and come with a riddle attached. Despite CCTV film showing a man leaving three heads outside a post office, their origin remains unknown. So far, 12 have appeared in Goathland and Kilburn, North Yorkshire; four in Arthington, West Yorkshire and three in Braithwell in South Yorkshire.
In cryptography , a cipher (or cypher ) is an algorithm for performing encryption or decryption —a series of well-defined steps that can be followed as a procedure. An alternative, less common term is encipherment . To encipher or encode is to convert information from plain text into code or cipher. In non-technical usage, a "cipher" is the same thing as a " code "; however, the concepts are distinct in cryptography.
Let's say that you need to send your friend a message, but you don't want another person to know what it is. You can use a full-blown encryption tool, such as PGP. If the message isn't that important or if it is intended to be decrypted by hand, you should use a simpler tool.
If there was ever a cache that everyone should try once, pict-o-caches would likely be near the top of the list. They take aspects of several different types of caches and join them together to make a cache that everyone can participate in and enjoy. But how do they work? First, we need to establish what they are… Pict-o-caches are a class on their own. Taking cues from multi-caches, on-site puzzles, and visual puzzles, these puzzles definitely require an observant eye.
The Cipher File and How to Decipher by Katherine Yurica A Story by Rosetta Sherwood Stone Instructions and Tips On How to Decipher To the Cipher File: "The Game's A Foot Watson!" $100 Reward How the Cipher File Came About When I was very young, seven to nine, or around that age, I found myself getting bored when I ate alone. So I would grab any reading material I could find. It didn’t matter what it was—because I had started on a quest to find out what letter in the alphabet was used more often than any other letter. I developed a game of sorts with an imaginary opponent.
hacking puzzle faierie (hpf)