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Topic: Cryptoanalysis


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In the News (Wed 23 Dec 09)

  
  Cryptoanalysis
Cryptoanalysis is a synonym for codebreaking and refers to the practice of analyzing ciphertext with the intent of breaking it or "cracking the code".
Cryptoanalysis is the study of ways that can be used to obtain plaintext information from encrypted information without using the intended method such as using a key to decrypt the information.
Cryptoanalysis attempts to attack weaknesses in the methods used to encrypt code or the methods used to generate keys.
www.comptechdoc.org /independent/security/terms/cryptoanalysis.html   (174 words)

  
 Cryptology   (Site not responding. Last check: 2007-10-13)
Cryptology is the section of mathematics that deals with both cryptography and cryptoanalysis.
Encryption is a method of converting the data or information from a normal readable format, known as plaintext, into a format that is not readable, known as ciphertext, without being converted back to plaintext.
Cryptoanalysis refers to the practice of analyzing ciphertext with the intent of breaking it.
www.comptechdoc.org /independent/security/terms/cryptology.html   (145 words)

  
 AspEncrypt.com - Crypto 101: Basic Terminology
Cryptoanalysis deals with breaking ciphertext, that is, recovering plaintext without knowing the key.
Cryptology is a branch of mathematics which deals with both cryptography and cryptoanalysis.
A cryptographic algorithm, also known as a cipher, is a mathematical function which uses plaintext as the input and produces ciphertext as the output and vice versa.
www.aspencrypt.com /crypto101_terminology.html   (353 words)

  
 Defendant's Response to Order to Show Cause, in DVD CCA v. McLaughlin, Bunner, et al.) (Jan. 7, 2000)
Cryptoanalysis is its counterpart, the study and development of techniques for code-breaking.
It is critical for the advancement of cryptography and cryptoanalysis that advances in breaking the codes be known and publicized.
If responsible scientists do not also share the information that they have, they are always running behind the miscreants: duplicating each others' work, and leaving their own systems wide open to attacks which some other scientist has already discovered but not published.
www.eff.org /IP/Video/DVDCCA_case/20000107-pi-motion-response.html   (4482 words)

  
 DocJoJo - Tutorial: Cryptology Workshop
Cryptology is the science of en/decrypting data, where the cryptography is the science of encryption and the cryptoanalysis is the science of decryption.
The basic task in cryptography is developing secure and efficient encryption methods to make cryptology as safe as possible., where cryptoanalysis tries to crack the codes without key access.
Cryptoanalysis is a part of mathematical systemanalysis, Used to find weak parts of chiffre systems.
www.docjojo.com /Archive/homepage/crypto.htm   (1784 words)

  
 Math Example
They are created from Mathcad as a HTML file (with imbedded "JPEG" images), which does not require Mathcad to display.
The 3x3 example is the simplest form of CPK and is provided to help cryptoanalysis find suitable attacks.
Results from cryptoanalysis on the 3x3 will help evaluate different modifications to CPK.
members.tripod.com /cpkdemo/math.htm   (227 words)

  
 DeCSS Central - CSS and DeCSS   (Site not responding. Last check: 2007-10-13)
Links to a cryptoanalysis of CSS can be found below, but CSS also consists of one other element: The CSS license.
CSS is still being treated as a secret, even though it's dirty secrets have been available to the general public since November 1999.
Frank A. Stevenson had his cryptoanalysis of CSS online at crypto.gq.nu for a much longer time.
www.lemuria.org /DeCSS/decss.html   (1323 words)

  
 W&B Scientific - A Case for Expert Systems   (Site not responding. Last check: 2007-10-13)
Given the current status of perfect models, hackers worldwide shockingly desire the synthesis of checksums, which embodies the natural principles of cryptoanalysis.
Clearly, the study of DHCP and Moore's Law are usually at odds with the study of the Turing machine.
In the opinions of many, we view cryptoanalysis as following a cycle of four phases: observation, development, investigation, and allowance.
wbsci.org /Miscellaneous/2333/A-Case-for-Expert-Systems.html   (2445 words)

  
 US NAVY CRYPTOANALYSIS
In all, seventy-five members of the CAST unit were evacuated, the largest single contingent and the only complete outfit to leave the Rock.
Hackers interested in reading more of the history of Cryptoanalysis should read The Code-Breakers by David Khan, Weidenfeld and Nicholson Ltd, 1973 ISBN 0 7221 5146 2
Until at least 1978, when this was taken, this US Mail post box was near Middleside, hidden in the ipil-ipil undergrowth, alongside the stairway linkimg Middleside to Topside.
corregidor.org /chs_crypto1/usnavy.htm   (609 words)

  
 sci.crypt: literature on cryptoanalysis
Next in thread: Valery Pryamikov: "Re: literature on cryptoanalysis"
Reply: Douglas A. Gwyn: "Re: literature on cryptoanalysis"
what I need is a book cross-secting cryptoanalysis, describing *all*
www.derkeiler.com /Newsgroups/sci.crypt/2005-01/0897.html   (190 words)

  
 Cryptography Research - EUROCRYPT 1991
Eli Biham, Adi Shamir: Differential Cryptoanalysis of Feal and N-Hash.
Xuejia Lai, James L. Massey: Markov Ciphers and Differentail Cryptoanalysis.
Eli Biham: Cryptoanalysis of the Chaotic-Map Cryptosystem Suggested at EUROCRYPT'91.
www.cryptography.com /resources/papers/eurocrypt1991.html   (605 words)

  
 Cryptography Research - CRYPTO 1995   (Site not responding. Last check: 2007-10-13)
Burton S. Kaliski Jr., Yiqun Lisa Yin: On Differential and Linear Cryptoanalysis of the RC5 Encryption Algorithm.
Cryptoanalysis II Jacques Patarin: Cryptoanalysis of the Matsumoto and Imai Public Key Scheme of Eurocrypt'88.
Yair Frankel, Moti Yung: Cryptoanalysis of the Immunized LL Public Key Systems.
www.cryptography.com /resources/papers/crypto95/crypto95.html   (497 words)

  
 High level design - Miller
This can lead to an increase in the size of the keyspace, while allowing the actual key's size to remain constant.
By using a series of encryption methods, we increase the security of data versus cryptoanalysis.
This is because an attacker must not only identify every algorithm used, but they must also break each algorithm used.
web.umr.edu /~sea/research/CircuitDesign.htm   (628 words)

  
 Math Alive   (Site not responding. Last check: 2007-10-13)
Cryptology (from the Greek kryptos 'hidden' and logos 'word') is the science of secure communications.
Cryptology is split into two subdivisions: cryptography and cryptoanalysis.
The cryptographer seeks to find methods to ensure the secrecy, integrity, and/or authenticity of messages.
www.math.princeton.edu /matalive/Crypto   (68 words)

  
 Neil's World - Keyword Search for cryptoanalysis   (Site not responding. Last check: 2007-10-13)
Here are other posts tagged with the keyword 'cryptoanalysis'.
Assault on 13th Labour - Through Boing Boing I discovered Assault on 13th Labour - a project to decipher an encrypted message on a Perplex City card which remains unsolved by anyone thus far.
Somewhat powered by Movable Type but actually mostly powered by custom-written code.
www.neilturner.me.uk /tags/cryptoanalysis   (63 words)

  
 Introduction to Cryptoanalysis (Tutorial Application)
This is an elementary introduction to cryptoanalysis for beginners.
You should know that all NSA men when they were students went through this episode, writing applications in such a way.
Take all precautions getting started with a real cryptoanalysis.
www.freevbcode.com /ShowCode.Asp?ID=4688   (185 words)

  
 CueCat Output Decode and Decipherment   (Site not responding. Last check: 2007-10-13)
There have been claims that some people have gone to extreme lengths to determine the output scheme for the Digital Convergence CueCat.
This essay intends to show that the determination of the output of the CueCat is simple and straightforward, and requires a minimum of effort and cryptoanalysis.
The method used by the Cuecat barcode wand to return information from scanned barcodes is fairly simple.
www.fluent-access.com /wtpapers/cuecat/base64.html   (1950 words)

  
 DNA Computing - Mike Chan's Senior Project Page
Read several of the papers submitted in the 2001 Conference on DNA Computing.
Searched for more sources on cryptoanalysis with DNA computing.
Wrote webpages for the presentation to be given on 10/9.
www.csc.villanova.edu /~mchan/4790/diary.html   (997 words)

  
 Kryptographie FAQ: Frage 59: What is Linear Cryptoanalysis?   (Site not responding. Last check: 2007-10-13)
Kryptographie FAQ: Frage 59: What is Linear Cryptoanalysis?
Linear cryptanalysis was first devised by Matsui and Yamagishi [MY92] in an attack on FEAL (see Question 79).
Other issues such as protecting ciphers against linear cryptanalysis have been considered by Nyberg [Nyb95], Knudsen [Knu93], and O'Conner [Oco95].
www.iks-jena.de /mitarb/lutz/security/cryptfaq/q59.html   (177 words)

  
 sci.crypt: Re: literature on cryptoanalysis
In reply to: Nikola Skoric: "literature on cryptoanalysis"
Next in thread: Wayne: "Re: literature on cryptoanalysis"
> what I need is a book cross-secting cryptoanalysis, describing *all*
www.derkeiler.com /Newsgroups/sci.crypt/2005-01/0970.html   (207 words)

  
 Kryptographie FAQ: Frage 58: What is Differential Cryptoanalysis?   (Site not responding. Last check: 2007-10-13)
Kryptographie FAQ: Frage 58: What is Differential Cryptoanalysis?
Differential cryptanalysis is a type of attack that can be mounted on iterative block ciphers.
Differential cryptanalysis has also been useful in attacking other cryptographic algorithms such as hash functions.
www.iks-jena.de /mitarb/lutz/security/cryptfaq/q58.html   (203 words)

  
 Cryptoanalysis (via CobWeb/3.1 planetlab1.isi.jhu.edu)   (Site not responding. Last check: 2007-10-13)
When talking about brute-force attacks two important distinction need to be made.
Cryptoanalysis against Public key systems is much more effective than against Private key algorithms and public keys have a much longer life compared to private keys.
A document signed with a 1024 bit Public key may need to remain secure for 20 years!
www.abcseo.com.cob-web.org:8888 /papers/security/12-cryptoanalysis.htm   (253 words)

  
 Crypto@LNCS
Cryptoanalysis II Cryptoanalysis of the Matsumoto and Imai Public Key Scheme of Eurocrypt'88
Cryptoanalysis II The Security of the Gabidulin Public Key Cryptosystem
Cryptoanalysis of Public-Key Cryptosystems (I) Merkle-Hellman Revisited: A Cryptoanalysis of the Qu-Vanstone Cryptosystem Based on Group Factorizations
www.cs.hku.hk /~smchow/complete.html   (6926 words)

  
 USB pen drives freeware cryptosystems and cryptoanalysis
Right now we need a list of freeware cryptosystems for USB pen drives, as well as comments or cryptoanalysis of standard ones.
Re: USB pen drives freeware cryptosystems and cryptoanalysis
> > Right now we need a list of freeware cryptosystems for USB pen drives, > as well as comments or cryptoanalysis of standard ones.
www.webservertalk.com /message1560052.html   (239 words)

  
 Debasis Mitra
I direct the Center's work, which is in five main areas:
Fundamental mathematics, including discrete mathematics, combinatorial optimization, theory of algorithms, cryptoanalysis and analysis of dynamical systems.
Fundamentals of networking, including QoS and SLA management, scheduling for wireline and wireless networks, data traffic modeling and regulation, traffic engineering, optical network design and IP protocols, together with the theories of stochastic networks and stochastic analysis.
cm.bell-labs.com /cm/ms/who/mitra/index.html   (776 words)

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