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| | Data Encryption Standard - Open Encyclopedia |
 | | This time, IBM submitted a candidate which was deemed acceptable, a cipher developed during the period 1973–1974 based on an earlier algorithm, Horst Feistel's Lucifer cipher. | | | DES is the archetypal block cipher — an algorithm that takes a fixed-length string of plaintext bits and transforms it through a series of complicated operations into another ciphertext bitstring of the same length. | | | Permutation — finally, the 32 outputs from the S-boxes are rearranged according a fixed permutation, the P-box. |
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http://open-encyclopedia.com/DES
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| | programming projects in cryptography |
| | This project is a simplified version of project 3 (since past students have had difficulty implementing project 3). | | | See the handout for suggestions.(40-50 points) The number of points will depend in large part how successful your program is. Your program should expect input from a ascii or binary file. | | | We are using a simple rotor machine because later we have a project on trying to break this cipher. |
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http://www.cs.umbc.edu/~stephens/crypto/project1.html
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| | SSH : Support : Cryptography A-Z : Algorithms : Secret Key Cryptosystems |
| | RC4 is a stream cipher designed by Ron Rivest at RSA Data Security, Inc. It used to be a trade secret, until someone posted source code for an algorithm on the usenet, claiming it to be equivalent to RC4. | | | In this section some of the famous ciphers of the past are listed, with links to more complete information where possible. | | | The essential property of Feistel networks that makes them so useful in cipher design is that the round function need not be invertible, but the resulting function always is. |
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http://www.ssh.info/support/cryptography/algorithms/symmetric.html
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| | The Free Information Society - A Glossary of Cryptography Terms |
| | It is known that the original Lucifer algorithm used a 128-bit key and that this key length was shortened to 64 bits (56 bits plus 8 parity bits), thus making exhaustive search much easier (so far as is known, brute-force search has not been done, though it should be feasible today). | | | *** computationally secure -- where a cipher cannot be broken with available computer resources, but in theory can be broken with enough computer resources. | | | Much of the work on implementing DC Nets, for example, involves ensuring that colluders cannot isolate message senders and thereby trace origins and destinations of mail. |
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http://www.freeinfosociety.com/computers/cryptography/glossary.html
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| | NSRP: Cryptography |
| | DES was based on the Lucifer cipher and after some particularly controversial changes to the algorithm mandated by NSA (including the changing the contents of some of the algorithm's eight substitution boxes (s-boxes) and the reduction of key size from 128 bits to 56 bits) was chosen to be the U.S. Data Encryption Standard. | | | It is a symmetric block algorithm written by IBM that encodes 64-bit blocks of data using a 56-bit key. | | | Meanwhile, the revolution in computers and electronic communications drove the need for civilian research in cryptography, as companies and individuals began to sense the same need for encryption and privacy protection that the government had long recognized. |
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http://www.gslis.utexas.edu/~netsec/crypto.html
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| | JS: Crypto: « Lucifer » style cryptology (Javascript) |
| | Anyway, keep in mind: the difference between lucifer and cryptoBaits is (for both yield as a result a shuffling of the text) that lucifer shuffles the existing input text, as opposite to cryptoBaits which adds characters to it, and then invokes lucifer to shuffle the overall amount (original text plus baits, that is). | | | « Lucifer » was the name that IBM gave to a product and a procedure, which was to become a standard, meant to crypt texts by giving to the cipher a lot of shuffling, in order to make it even harder to analyze. | | | For the crypt and deCrypt functions see the 2nd crypto file; anyway keep in mind that the keyword used for crypt and deCrypt functions can be different from the keyword you use for lucifer. |
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http://www.unitedscripters.com/scripts/crypto3.html
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| | [No title] |
| | The ciphers supported are: desrnd ANSI standard DES; lokirnd CCCSR LOKI cipher [2]; fealrnd NTT FEAL cipher [3], [4]; luciferrnd IBM's original Lucifer cipher [5]; Bit Stream Analysis Tools The Bit Stream Analysis tools take as input a stream of bits, and calculate some statistical properties of it. | | | Structural tests in use for Feistel style block ciphers include a generalised form of Meyer's analysis of ciphertext dependence on plaintext and key, and an analysis of avalanche propagation in the cipher. | | | 1 Introduction With the increasing need for new ciphers for use in new communications systems, a number of new ciphers, particularly block ciphers, have been de- veloped. |
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http://www.unsw.adfa.edu.au/~lpb/papers/sec91.txt
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| | The Data Encryption Standard |
| | DES was a reasonably competent block cipher for its time, but advances in computing machinery have blown its security away. | | | While most of these modes do add some real and necessary security against known- plaintext attacks at very small computational cost, there is simply no way to achieve security in a cipher with such a short key length other than using it multiple times with different keys. | | | In 1972, the National Bureau of Standards (NBS, which has since been renamed as the National Institute of Standards and Technology, or NIST) launched a program to develop a standard cryptographic algorithm. |
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http://www.disappearing-inc.com/D/des.html
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| | Block Ciphers (part 1) |
| | Lucifer is the first publically known example of a practical substitution-permutation cipher | | | Arthur Sorkin, "Lucifer, A Cryptographic Algorithm", Cryptologia, Vol 8(1), Jan 1984, pp 22-41, with addenda in Vol 8(3) pp260-261 | | | if a cipher requires more operations, or needs more storage than this, it is pretty reasonable to say it is computationally secure |
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http://williamstallings.com/Extras/Security-Notes/lectures/blockA.html
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| | Encrypting algorithms |
| | DES is based on an algorithm known as Lucifer cipher designed by IBM. | | | Therefore, RSA is much slower to compute than other secret key algorithms, such as DES. | | | DES uses a 56-bit key, and maps a 64-bit input block into a 64-bit output block. |
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http://www.ciol.com/content/flavour/netsec/101052201.asp
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| | [No title] |
| | A faster implementation is available from mrr@scss3.cl.msu.edu Md/md2-kit-verifier.tar.Z C Implementation of RSA's MD2 (Message Digest 2) hash function, with a copy of RFC 1115, plus a simple program to read a file and compute its md2 message digest. | | | (This device was based on the work of Boris Hagelin.) Source code in GWBASIC (MS-DOS BASIC), probably from a book by Cipher Devours. | | | rot13.c Source to simple program implementing the famous very simple "rot13" cipher. |
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http://public.planetmirror.com/pub/mindlink-crypto/INDEX
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| | Feistel cipher |
| | Many modern symmetric block ciphers are based on Feistel networks, and the structure and properties of Feistel ciphers havebeen extensively explored by cryptographers. | | | Like other components of the DES, theiterative nature of the Feistel construction makes implementing the cryptosystem in hardware easier (particularly on the hardwareavailable at the time of DES' design). | | | The Skipjack encryption algorithm is anexample of such a cipher. |
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http://www.therfcc.org/feistel-cipher-274212.html
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| | Jonathan M. Smith |
| | C implementation of Lucifer cipher for UNIX, written in 1991 | | | [16] Jonathan M. Smith, "LUCIFER," in Applied Cryptography: Protocols, Algorithms and Source Code in C, ed. |
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http://www.ftc.gov/acoas/nominations/smithjm.htm
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| | Kids.net.au - Encyclopedia Cryptography - |
| | Lucifer cipher[?] (IBM, early 1970s; modified to become DES) | | | Enigma (WWII German rotor cypher machine -- many variants, many users) | | | The term cryptology has sometimes been used instead of cryptography for this field; but there is some tension between these two lexigraphic schools. |
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http://www.kids.net.au/encyclopedia-wiki/cr/Cryptography
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| | Decryption |
| | The cipher structure was designed to be easily implemented in both software and hardware, and the security of IDEA relies on the use of three incom | | | Feistel networks were invented by IBM cryptography researcher Horst Feistel, and first commercially seen in IBM's Lucifer cipher, designed by Feistel and Don Coppersmith. | | | Feistel networks gained respectability when the US Federal Government adopted the DES (a cipher based on Lucifer, with improvements made by the NSA). |
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http://bonose.com/Decryption-0.html
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| | Lucifer (cipher) - Wikipedia, the free encyclopedia |
| | In cryptography, Lucifer was the name given to several of the earliest civilian block ciphers, developed by Horst Feistel and his colleagues at IBM. | | | The patent describes the execution of the cipher operating on 24-bits at a time, and also a sequential version operating on 8-bits at a time. | | | The cipher is a Substitution-permutation network and uses two 4-bit S-boxes. |
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http://en.wikipedia.org/wiki/Lucifer_cipher
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| | Lucifer - netlexikon |
| | Weitere Bücher und Medien zum Thema "Lucifer" anzeigen | | | Lucifer von Michael Cordy, Sepp Leeb für EUR 8,95 | | | In der Kryptografie war Lucifer ein von IBM entwickelter Verschlüsselungsalgorithmus und der Vorgänger von DES. |
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http://www.lexikon-definition.de/Lucifer.html
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| | What is DES? |
| | DES was developed by IBM and was based upon IBM's earlier Lucifer cipher. | | | DES (Data Encryption Standard) is a symmetric cipher defined in Federal Information Processing (FIPS) Standard Number 46 in 1977 as the federal government approved encryption algorithm for sensistive but non-classified information. | | | This key size is vulnerable to a brute force attack using current technology. |
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http://www.tech-faq.com/des-data-encryption-standard.shtml
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| | Stargate Cipher 2012 (page1) |
| | Prometheus is considered very much comparable to Lucifer. | | | From my article The Lucifer Time Code: Part 1 (May 3, '04): | | | This has much to do with the 'Lucifer Time Code' that I've talked a lot about this year, after all Venus is traditionally identified with Lucifer ('light-bearer') though also equatable with Mary Magdalene/Virgin and the whole 'goddess' complex. |
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http://www.goroadachi.com/etemenanki/sc2012-1.htm
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| | World-Information.Org |
| | late 1960's the IBM Watson Research Lab develops the Lucifer cipher | | | 1921 the Hebern Electric Code, a company producing electro-mechanical cipher machines, is founded | | | - an AT&T-employee, Gilbert S. Vernam, invents a polyalphabetic cipher machine that works with random-keys |
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http://world-information.org/wio/infostructure/100437611776/100438658921
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| | List of cryptography topics |
| | National Security Agency -- National Cryptologic Museum -- Needham-Schroeder -- NESSIE -- NewDES -- Niels Ferguson -- NTRUEncrypt -- Null cipher -- Numbers station -- | | | VENONA project -- VIC cipher -- Vigenère -- Vincent Rijmen -- Visual cryptography -- Voynich Manuscript -- | | | FEAL -- Feistel cipher -- Financial cryptography -- FISH (cryptography) -- Fortezza -- Frank A. Stevenson -- Frank Rowlett -- FreeLIP -- Frequency analysis -- Friedrich Kasiski -- Fritz-chip -- |
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http://www.sciencedaily.com/encyclopedia/list_of_cryptography_topics
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| | Matrix, The : Presidents in the Matrix |
| | 1) Louis Cipher could be Lou Cipher or Lucifer--I like that analysis. | | | Cypher could be an anagram ("Louis Cypher") to one of the devil´s name, Lucifer, like Robert de Niro´s character in the movie 'Angel Heart'. | | | about the Lucifer thing, i think what lekoshimura might have meant was Lou Cypher which you can interpret into Lou Cyfer or Lucifer |
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http://www.eeggs.com/items/4036.html
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| | Joan of Arcadia.com Forum - Annie Potts' character |
| | In it DeNiro plays a character named Lou Cipher. | | | I don't know this character yet, but based on my undesrtanding of angels and spiritual books about them that I have read, some interpretations may have 'Lucifer' as the angel of God who is sent to help us stretch our spiritual muscles. | | | At the end turns out to be Lou Cipher is Lucifer. |
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http://www.joanofarcadia.com/forum/printthread.php?t=246
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| | Stargate Cipher 2012: Part 2 (1/3) |
| | Stargate Cipher 2012: Part II Stargate Cipher 2012 | | | Both, in fact, carried a '9/11' theme: the Olympics' end date (8/29) calendrically corresponds to 9/11 in that the modern Gregorian calendar is 13 days ahead of the Julian calendar (already a key part of the 'Lucifer Time Code'); and the Convention (especially the first day, 8/30) was all about (exploiting) 9/11. | | | I posted the following commentary on September 7 covering many key points, making it an appropriate place to start our exploration of the new dimension, the second half of the Athenean Stargate Cipher: |
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http://www.goroadachi.com/etemenanki/sc2012-b1.htm
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| | List of cryptography topics |
| | Ian Goldberg -- IBM 4758 -- ICE (cipher) -- ID-based cryptography -- Identification friend or foe -- IEEE 802.11i -- IEEE P1363 -- I. | | | VENONA project -- VeriSign -- VIC cipher -- Vigenère cipher -- Vincent Rijmen -- VINSON -- Virtual private network -- Visual cryptography -- Voynich manuscript -- | | | FEAL -- Feistel cipher -- Felix Delastelle -- Fialka -- Financial cryptography -- FIPS 140 -- FIREFLY -- FISH (cipher) -- Fish (cryptography) -- FNBDT -- Fortezza -- Fortuna (PRNG) -- Four-square cipher -- Fractal cryptography -- Frank A. Stevenson -- Frank Rowlett -- Frequency analysis -- Friedrich Kasiski -- Fritz-chip -- FROG -- |
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http://www.worldhistory.com/wiki/L/List-of-cryptography-topics.htm
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