About: Cryptanalysis of Hitag-2 Cipher

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The Hitag2 stream cipher is used in many realworld applications, such as car immobilizers and door opening systems, as well as for the access control of buildings. The short length of the 48-bit secret key employed makes the cipher vulnerable to a brute-force attack, i.e., exhaustive key search. In this paper we develop the first hardware architecture for the cryptanalysis of Hitag2 by means of exhaustive key search. Our implementation on the Cost-Optimized Parallel Code-Breaker COPACOBANA is able to reveal the secret key of a Hitag2 transponder in less than 2 hour (103.5 minutes) in the worst case. The speed of our approach outperforms all previously proposed attacks and requires only 2 sniffed communications between a car and a tag. Our findings thus define a new lower limit for the cloning of car keys in practice. Moreover, the attack is arbitrarily parallelizable and could thus be run on multiple COPACOBANAs to decrease the time to find the secret key. The Hitag2 stream cipher is used in many realworld applications, such as car immobilizers and door opening systems, as well as for the access control of buildings. The short length of the 48-bit secret key employed makes the cipher vulnerable to a brute-force attack, i.e., exhaustive key search. In this paper we develop the first hardware architecture for the cryptanalysis of Hitag2 by means of exhaustive key search. Our implementation on the Cost-Optimized Parallel Code-Breaker COPACOBANA is able to reveal the secret key of a Hitag2 transponder in less than 2 hour (103.5 minutes) in the worst case. The speed of our approach outperforms all previously proposed attacks and requires only 2 sniffed communications between a car and a tag. Our findings thus define a new lower limit for the cloning of car keys in practice. Moreover, the attack is arbitrarily parallelizable and could thus be run on multiple COPACOBANAs to decrease the time to find the secret key. (en)
Title	Cryptanalysis of Hitag-2 Cipher Cryptanalysis of Hitag-2 Cipher (en)
skos:prefLabel	Cryptanalysis of Hitag-2 Cipher Cryptanalysis of Hitag-2 Cipher (en)
skos:notation	RIV/68407700:21240/11:00184488!RIV12-MSM-21240___
http://linked.open...avai/predkladatel	Fakulta informačních technologií
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM6840770014)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Novotný, Martin
http://linked.open.../riv/druhVysledku	G/B - Funkční vzorek
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...onomickeParametry	nejsou stanoveny
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta informačních technologií
http://linked.open...dnocenehoVysledku	192328
http://linked.open...ai/riv/idVysledku	RIV/68407700:21240/11:00184488
http://linked.open...terniIdentifikace	Novotný-DP-2011.01
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open...vai/riv/kategorie	A - Do 5 mil. Kč
http://linked.open.../riv/klicovaSlova	Cryptanalysis, Hitag-2, car immobilizer, Brute-Force Attack, FPGA, COPACOBANA (en)
http://linked.open.../riv/klicoveSlovo	Brute-Force Attack COPACOBANA Cryptanalysis FPGA Hitag-2 car immobilizer
http://linked.open...ontrolniKodProRIV	[A385CB590ACB]
http://linked.open.../licencniPoplatek	Z - Poskytovatel licence na výsledek nepožaduje v některých případech licenční poplatek
http://linked.open...okalizaceVysledku	HW laboratoř ČVUT FIT
http://linked.open...in/vavai/riv/obor	JC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...echnickeParametry	IP core. Vlastníkem výsledku je ČVUT v Praze, IČ 68407700.
http://linked.open...iv/tvurceVysledku	Novotný, Martin Štembera, Petr
http://linked.open...avai/riv/vlastnik	ČVUT FIT
http://linked.open...itiJinymSubjektem	P - Nabytí licence je nutné v některých případech
http://linked.open...n/vavai/riv/zamer	Výzkum perspektivních informačních a komunikačních technologií
http://localhost/t...ganizacniJednotka	21240
is http://linked.open...avai/riv/vysledek of	Cryptanalysis of Hitag-2 Cipher Cryptanalysis of Hitag-2 Cipher

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