EP 1602087 A1 20051207 - METHOD FOR DEACTIVATING AND REACTIVATING SECURITY MODULES
Title (en)
METHOD FOR DEACTIVATING AND REACTIVATING SECURITY MODULES
Title (de)
VERFAHREN ZUR DEAKTIVIERUNG UND NEUAKTIVIERUNG VON SICHERHEITSMODULEN
Title (fr)
PROCEDE DE DESACTIVATION ET DE REACTIVATION DE MODULES DE SECURITE
Publication
Application
Priority
- IB 2004050185 W 20040302
- CH 3252003 A 20030303
Abstract (en)
[origin: WO2004079672A1] Method for deactivating and reactivating security modules, particularly for controlling access to conditional-access data. Such security modules comprise a plurality of registers (R1, R2, R3, Rn) containing values. The method comprises a step of transmitting at least one management message (RUN-EMM) containing an executable code which is loaded into a security module memory then executed. In particular, code execution can cause the register values to be mixed and/or encrypted, or rendered illegible. The method also enables previously deactivated security modules to be reactivated by means of a step of transmitting a further message containing an executable code (RUN-EMM<-1>) for reactivating the modules, which executable code has an opposite function to that of the executable code used to deactivate the security modules.
IPC 1-7
IPC 8 full level
G06F 21/60 (2013.01); G06F 21/62 (2013.01); G07F 7/10 (2006.01); H04N 7/16 (2011.01)
CPC (source: EP KR US)
G06Q 20/341 (2013.01 - EP US); G06Q 20/35765 (2013.01 - EP US); G07F 7/1008 (2013.01 - EP US); H04N 7/16 (2013.01 - KR); H04N 7/163 (2013.01 - EP US); H04N 21/26606 (2013.01 - EP US); H04N 21/4181 (2013.01 - EP US); H04N 21/4623 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2004079672A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004079672 A1 20040916; AU 2004217312 A1 20040916; BR PI0408660 A 20060328; CA 2517756 A1 20040916; CA 2517756 C 20120703; CN 100350799 C 20071121; CN 1757049 A 20060405; EP 1602087 A1 20051207; IL 170575 A 20090922; JP 2006524455 A 20061026; KR 101022620 B1 20110316; KR 20050108371 A 20051116; MX PA05009313 A 20051104; MY 151598 A 20140613; NZ 542129 A 20080731; RU 2005127474 A 20060727; RU 2340000 C2 20081127; TW 200500887 A 20050101; US 2006005262 A1 20060105; US 7890770 B2 20110215; ZA 200507064 B 20070328
DOCDB simple family (application)
IB 2004050185 W 20040302; AU 2004217312 A 20040302; BR PI0408660 A 20040302; CA 2517756 A 20040302; CN 200480005807 A 20040302; EP 04716300 A 20040302; IL 17057505 A 20050830; JP 2006506665 A 20040302; KR 20057016206 A 20040302; MX PA05009313 A 20040302; MY PI20040718 A 20040302; NZ 54212904 A 20040302; RU 2005127474 A 20040302; TW 93105304 A 20040301; US 21290405 A 20050829; ZA 200507064 A 20040302