About: RC2

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In cryptography, RC2 (also known as ARC2) is a symmetric-key block cipher designed by Ron Rivest in 1987. "RC" stands for "Ron's Code" or "Rivest Cipher"; other ciphers designed by Rivest include RC4, RC5, and RC6. Initially, the details of the algorithm were kept secret — proprietary to RSA Security — but on 29 January 1996, source code for RC2 was anonymously posted to the Internet on the Usenet forum, sci.crypt. Mentions of CodeView and SoftICE (popular debuggers) suggest that it had been reverse engineered. A similar disclosure had occurred earlier with RC4.

Attributes	Values
rdf:type	yago:WikicatBlockCiphers yago:WikicatBrokenBlockCiphers noble yago:Ability105616246 yago:Abstraction100002137 yago:Cipher106254239 yago:Cognition100023271 yago:Communication100033020 yago:Know-how105616786 yago:Message106253690 yago:Method105660268 yago:PsychologicalFeature100023100
rdfs:label	RC2 (cs) RC2 (Blockchiffre) (de) RC2 (es) RC2 (en) RC2 (it) RC2 (fr) RC2 (ja) RC2 (pl) RC2 (ru)
rdfs:comment	RC2 (též ARC2) je v kryptografii název symetrické blokové šifry, kterou navrhl Ronald L. Rivest v roce 1987. Písmena „RC“ jsou zkratkou pro „Ron’s Code“ (Ronův kód) či „Rivest Cypher“ (Rivestova šifra). Mezi další Rivestem navržené šifry patří RC4, a . (cs) RC2 ist eine 64 Bit Blockchiffre mit variabler Schlüssellänge, die von Ronald Rivest als möglicher Ersatz für DES im Jahr 1987 entwickelt wurde. RC steht für Rivest Cipher oder Ron’s Code. Ronald Rivest war auch bei der Entwicklung der Chiffren RC4, RC5 und RC6 federführend beteiligt. (de) RC2 est un chiffrement de bloc conçu par Ronald Rivest en 1987. L'abréviation « RC » signifie Ron's Code ou Rivest Cipher. Le cryptologue est à l'origine des autres RC (RC4, RC5 et RC6). RC2 utilise un bloc de 64 bits avec une clé de taille variable. Ses 18 tours sont arrangés selon un réseau de Feistel avec 16 tours de type MIXING englobés dans deux tours de type MASHING. Un tour MIXING comprend quatre transformations nommées MIX. (fr) In crittografia l'RC2 è un cifrario a blocchi progettato da Ronald Rivest nel 1987 (la sigla "RC" sta per "Ron's Code" o "Rivest Cipher"). (it) RC2 は1987年にロナルド・リベストが設計したブロック暗号。"RC" は "Ron's Code" または "Rivest Cipher" の略。リベストの設計した他の暗号として RC4、RC5、RC6 がある。 (ja) RC2 – szyfr blokowy z kluczem o zmiennej długości, zaprojektowany przez Rona Rivesta w 1987 dla organizacji RSA Data Security, Inc. w celu zastąpienia szyfru DES. Przedstawiciele firmy RSADS twierdzą, że algorytm jest trzykrotnie szybszy od szyfru DES, niezależnie od tego jakiej długości klucz wybierzemy. Nazwa szyfru rozwija się w Ron’s Code lub Rivest’s Cipher. (pl) En criptografía, RC2 (también conocido como ARC2) es un cifrado de bloque de clave simétrica diseñado por Ron Rivest en 1987. "RC" significa "Código de Ron" o "Cifrado de Rivest"; otras diseñadas por Rivest son RC4, RC5 y RC6. En marzo de 1998, Ron Rivest escribió un RFC describiendo públicamente a RC2. RC2 es vulnerable a un ataque de clave relacionada usando 234 planos elegidos (Kelsey et al., 1997). (es) In cryptography, RC2 (also known as ARC2) is a symmetric-key block cipher designed by Ron Rivest in 1987. "RC" stands for "Ron's Code" or "Rivest Cipher"; other ciphers designed by Rivest include RC4, RC5, and RC6. Initially, the details of the algorithm were kept secret — proprietary to RSA Security — but on 29 January 1996, source code for RC2 was anonymously posted to the Internet on the Usenet forum, sci.crypt. Mentions of CodeView and SoftICE (popular debuggers) suggest that it had been reverse engineered. A similar disclosure had occurred earlier with RC4. (en) RC2 (Ron’s Code 2 или Rivest’s Cipher 2) — блочный шифр с длиной блока 64 бита и переменной длиной ключа, разработанный Роном Ривестом в конце 1980-х годов. Алгоритм является более быстрым, чем алгоритм DES. Стойкость может быть больше или меньше, чем у DES, в зависимости от длины ключа. Алгоритм RC2 является собственностью компании Для его использования требуется лицензия. Реализация алгоритма была опубликована анонимно в 1996 году, затем в 1998 году как RFC 2268. Был исключен из стандартов TLS с выходом версии 1.2. (ru)
name	RC2 (en)
foaf:depiction
dcterms:subject	Broken block ciphers
Wikipage page ID	632592 (xsd:integer)
Wikipage revision ID	1085035176 (xsd:integer)
Link from a Wikipage to another Wikipage	Ron Rivest Debugger Symmetric-key algorithm Cryptography Usenet RC6 CodeView NSA Lotus Notes Lotus Software Key (cryptography) Key size Lecture Notes in Computer Science 40-bit encryption Broken block ciphers Feistel network Request for Comments Fast Software Encryption Reverse engineering RC5 Block cipher Block size (cryptography) Related-key attack SoftICE Cipher RC4 (cipher) RSA Security Export of cryptography Sci.crypt Chosen plaintext Crypto: How the Code Rebels Beat the Government Saving Privacy in the Digital Age
Link from a Wikipage to an external page	http://security.nknu.edu.tw/crypto/faq/html/3-6-2.html https://www.schneier.com/academic/archives/1997/11/related-key_cryptana.html https://groups.google.com/g/sci.crypt/c/m1UFiFMC89Y/m/cLyO5tr1g_MJ https://people.csail.mit.edu/rivest/pubs/KRRR98.pdf
sameAs	RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2 RC2
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thumbnail	wiki-commons:Special:FilePath/RC2_InfoBox_Diagram.svg?width=300
rounds	16 (xsd:integer)
caption	The MIX transformation of RC2; four of these comprise a MIXING round (en)
designers	Ron Rivest
image size	280 (xsd:integer)

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