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CCM mode (counter with cipher block chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated encryption algorithm designed to provide both authentication and confidentiality. CCM mode is only defined for block ciphers with a block length of 128 bits. The nonce of CCM must be carefully chosen to never be used more than once for a given key.This is because CCM is a derivation of counter (CTR) mode and the latter is effectively a stream cipher.

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rdf:type	yago:WikicatAuthenticated-encryptionSchemes yago:WikicatBlockCipherModesOfOperation yago:WikicatCryptographicAlgorithms yago:Abstraction100002137 yago:Act100030358 yago:Activity100407535 yago:Algorithm105847438 yago:Attribute100024264 yago:Cognition100023271 yago:Content105809192 yago:Event100029378 yago:Idea105833840 yago:Manner104928903 yago:Plan105898568 yago:PlanOfAction105902545 yago:Procedure101023820 yago:Property104916342 yago:PsychologicalFeature100023100 yago:YagoPermanentlyLocatedEntity single yago:Rule105846932 yago:Scheme105905348
rdfs:label	CCM-Modus (de) CCM mode (en) Counter with CBC-MAC (ja) CCM (kryptografia) (pl)
rdfs:comment	CCM mode (counter with cipher block chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated encryption algorithm designed to provide both authentication and confidentiality. CCM mode is only defined for block ciphers with a block length of 128 bits. The nonce of CCM must be carefully chosen to never be used more than once for a given key.This is because CCM is a derivation of counter (CTR) mode and the latter is effectively a stream cipher. (en) Der CCM-Modus (Counter with CBC-MAC) ist ein von Russ Housley, Doug Whiting und Niels Ferguson entwickelter Betriebsmodus für Blockchiffren. CCM macht aus einer Blockchiffre ein Authenticated-Encryption-Verfahren, das sowohl Vertraulichkeit als auch Integrität garantieren soll. RFC 3610 spezifiziert CCM nur für Blockchiffren mit einer Blocklänge von 128 Bit, wie beispielsweise AES. Bei CCM darf ein Initialisierungsvektor (IV) nicht zweimal mit dem gleichen Schlüssel verwendet werden. Dies liegt daran, dass CCM von Counter Mode abgeleitet ist, und letzterer eine Stromchiffre darstellt. (de) Counter with CBC-MAC (CCM、CCMモード)は、ブロック暗号の暗号利用モードの一つであり、認証付き暗号の一つである。CCMモードは128ビットブロック暗号に対してのみ定義されており、RFC 3610ではAESでの利用について定義されている。 CTRモードの派生として、CCMモードはストリーム暗号として振る舞う。そのため、初期化ベクトル (IV)を慎重に選択し、再使用することは避けなければならない。 (ja) CCM – (ang. Counter with CBC-MAC) tryb pracy dla kryptograficznych szyfrów blokowych. Jest to uwierzytelniony algorytm szyfrowania zaprojektowany w celu zapewnienia uwierzytelniania i poufności. Tryb CCM jest zdefiniowany tylko dla szyfrów blokowych o długości 128 bitów. (pl)
dcterms:subject	Authenticated-encryption schemes Block cipher modes of operation
Wikipage page ID	2244043 (xsd:integer)
Wikipage revision ID	1112528787 (xsd:integer)
Link from a Wikipage to another Wikipage	Bluetooth Algorithm EAX mode Initialization vector Intel Core 2 Intellectual property Galois/counter mode Crypto++ Niels Ferguson OCB mode Block cipher modes of operation Confidentiality Cryptographic nonce ZigBee Key (cryptography) Patent Transport Layer Security Authentication CBC-MAC WPA2 Cycles per byte Provable security Authenticated-encryption schemes Block cipher modes of operation Block cipher Block size (cryptography) Bluetooth Low Energy Authenticated encryption CCMP (cryptography) OpenSSL RSA Security Message authentication code IPsec Stream cipher attack Stream cipher dbr:Russ_Housley Pseudo-random function IEEE 802.11i Cryptographically strong
Link from a Wikipage to an external page	http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/comments/800-38_Series-Drafts/CCM/RW_CCM_comments.pdf
sameAs	CCM mode CCM mode CCM mode CCM mode CCM mode CCM mode CCM mode CCM mode
dbp:wikiPageUsesTemplate	dbt:IETF_RFC dbt:Reflist dbt:Short_description dbt:Cryptography_navbox
has abstract	CCM mode (counter with cipher block chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated encryption algorithm designed to provide both authentication and confidentiality. CCM mode is only defined for block ciphers with a block length of 128 bits. The nonce of CCM must be carefully chosen to never be used more than once for a given key.This is because CCM is a derivation of counter (CTR) mode and the latter is effectively a stream cipher. (en) Der CCM-Modus (Counter with CBC-MAC) ist ein von Russ Housley, Doug Whiting und Niels Ferguson entwickelter Betriebsmodus für Blockchiffren. CCM macht aus einer Blockchiffre ein Authenticated-Encryption-Verfahren, das sowohl Vertraulichkeit als auch Integrität garantieren soll. RFC 3610 spezifiziert CCM nur für Blockchiffren mit einer Blocklänge von 128 Bit, wie beispielsweise AES. Bei CCM darf ein Initialisierungsvektor (IV) nicht zweimal mit dem gleichen Schlüssel verwendet werden. Dies liegt daran, dass CCM von Counter Mode abgeleitet ist, und letzterer eine Stromchiffre darstellt. (de) Counter with CBC-MAC (CCM、CCMモード)は、ブロック暗号の暗号利用モードの一つであり、認証付き暗号の一つである。CCMモードは128ビットブロック暗号に対してのみ定義されており、RFC 3610ではAESでの利用について定義されている。 CTRモードの派生として、CCMモードはストリーム暗号として振る舞う。そのため、初期化ベクトル (IV)を慎重に選択し、再使用することは避けなければならない。 (ja) CCM – (ang. Counter with CBC-MAC) tryb pracy dla kryptograficznych szyfrów blokowych. Jest to uwierzytelniony algorytm szyfrowania zaprojektowany w celu zapewnienia uwierzytelniania i poufności. Tryb CCM jest zdefiniowany tylko dla szyfrów blokowych o długości 128 bitów. (pl)
gold:hypernym	Mode
prov:wasDerivedFrom	wikipedia-en:CCM_mode?oldid=1112528787&ns=0
page length (characters) of wiki page	7723 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:CCM_mode
is Link from a Wikipage to another Wikipage of	Block cipher mode of operation CCM EAX mode Index of cryptography articles Libgcrypt Crypto++

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