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In cryptography, CIKS-1 is a block cipher designed in 2002 by A.A. Moldovyan and N.A. Moldovyan. Like its predecessor, Spectr-H64, it relies heavily on permutations of bits, so is better suited to implementation in hardware than in software. The designers of CIKS-1 didn't specify any key schedule for the cipher, but it uses a total key size of 256 bits. Kidney, Heys, and Norvell showed that round keys of low Hamming weight are relatively weak, so keys should be chosen carefully. The same researchers have also proposed a differential cryptanalysis of CIKS-1 which uses 256 chosen plaintexts.

Attributes	Values
rdf:type	yago:WikicatBrokenBlockCiphers noble yago:Abstraction100002137 yago:Cipher106254239 yago:Communication100033020 yago:Message106253690
rdfs:label	CIKS-1 (en) CIKS-1 (it)
rdfs:comment	In crittografia il CIKS-1 è un cifrario a blocchi sviluppato nel 2002 da A.A. Moldovyan e N.A. Moldovyan. Come il suo predecessore, lo , si basa fortemente sulla permutazione dei bit, così da risultare più adeguato ad implementazioni in hardware che in software. (it) In cryptography, CIKS-1 is a block cipher designed in 2002 by A.A. Moldovyan and N.A. Moldovyan. Like its predecessor, Spectr-H64, it relies heavily on permutations of bits, so is better suited to implementation in hardware than in software. The designers of CIKS-1 didn't specify any key schedule for the cipher, but it uses a total key size of 256 bits. Kidney, Heys, and Norvell showed that round keys of low Hamming weight are relatively weak, so keys should be chosen carefully. The same researchers have also proposed a differential cryptanalysis of CIKS-1 which uses 256 chosen plaintexts. (en)
name	CIKS-1 (en)
dcterms:subject	Broken block ciphers
Wikipage page ID	8745236 (xsd:integer)
Wikipage revision ID	1084901712 (xsd:integer)
Link from a Wikipage to another Wikipage	Permutation Cryptography Weak key Modular arithmetic Feistel cipher Hamming weight Howard Heys Key (cryptography) Key schedule Key size Broken block ciphers PDF Differential cryptanalysis RC5 Block cipher Block size (cryptography) PostScript Spectr-H64 XOR Differential attack
Link from a Wikipage to an external page	http://citeseer.ist.psu.edu/640156.html http://citeseer.ist.psu.edu/653169.html
sameAs	CIKS-1 CIKS-1 CIKS-1 CIKS-1 CIKS-1
dbp:wikiPageUsesTemplate	dbt:Cite_conference dbt:Cite_journal dbt:Short_description dbt:Cryptography_navbox dbt:Crypto-stub dbt:Infobox_block_cipher
rounds	8 (xsd:integer)
designers	A.A. Moldovyan and N.A. Moldovyan (en)
structure	Feistel-like network (en)
has abstract	In cryptography, CIKS-1 is a block cipher designed in 2002 by A.A. Moldovyan and N.A. Moldovyan. Like its predecessor, Spectr-H64, it relies heavily on permutations of bits, so is better suited to implementation in hardware than in software. The algorithm has a block size of 64 bits. It uses an 8 round structure in which half of the block determines the transformation of the other half in each round, similar to a Feistel cipher or RC5. In each round the key also undergoes a transformation dependent on the data. CIKS-1 uses four types of operations: data-dependent permutations, fixed permutations, XORs, and addition mod 4. The designers of CIKS-1 didn't specify any key schedule for the cipher, but it uses a total key size of 256 bits. Kidney, Heys, and Norvell showed that round keys of low Hamming weight are relatively weak, so keys should be chosen carefully. The same researchers have also proposed a differential cryptanalysis of CIKS-1 which uses 256 chosen plaintexts. (en) In crittografia il CIKS-1 è un cifrario a blocchi sviluppato nel 2002 da A.A. Moldovyan e N.A. Moldovyan. Come il suo predecessore, lo , si basa fortemente sulla permutazione dei bit, così da risultare più adeguato ad implementazioni in hardware che in software. (it)
block size	64 (xsd:integer)
cryptanalysis	Differential attack using 256 chosen plaintexts (en)
derived from	Spectr-H64
key size	256 (xsd:integer)
publish date	January 2002 (en)
gold:hypernym	Cipher
prov:wasDerivedFrom	wikipedia-en:CIKS-1?oldid=1084901712&ns=0
page length (characters) of wiki page	2775 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:CIKS-1
is Link from a Wikipage to another Wikipage of	Encryption by date Index of cryptography articles Howard Heys Ciks-1 Cobra ciphers CIKS1 Spectr-H64 Ciks1
is Wikipage redirect of	Ciks-1 CIKS1 Ciks1
is derived to of	Spectr-H64
is foaf:primaryTopic of	wikipedia-en:CIKS-1

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