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WO2003085612A1 - Procede et dispositifs pour remplacer un dispositif d'identification usage par un neuf - Google Patents

Procede et dispositifs pour remplacer un dispositif d'identification usage par un neuf Download PDF

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Publication number
WO2003085612A1
WO2003085612A1 PCT/IB2003/001328 IB0301328W WO03085612A1 WO 2003085612 A1 WO2003085612 A1 WO 2003085612A1 IB 0301328 W IB0301328 W IB 0301328W WO 03085612 A1 WO03085612 A1 WO 03085612A1
Authority
WO
WIPO (PCT)
Prior art keywords
identification device
old
new
subscriber identity
identity module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2003/001328
Other languages
English (en)
Inventor
Olivier Joffray
Serge Barbe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axalto SA
Axalto Inc
Original Assignee
Axalto SA
Schlumberger Systemes SA
Schlumberger Malco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Axalto SA, Schlumberger Systemes SA, Schlumberger Malco Inc filed Critical Axalto SA
Priority to AU2003226577A priority Critical patent/AU2003226577A1/en
Publication of WO2003085612A1 publication Critical patent/WO2003085612A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/355—Personalisation of cards for use

Definitions

  • the invention relates to replacing an old identification device by a new identification device.
  • the invention may be applied, for example, in the field of cellular phone networks.
  • a GSM cellular phone network recognizes, as it were, a particular subscriber by means of a subscriber identity module (SIM).
  • SIM subscriber identity module
  • the SIM thus constitutes an identification device.
  • a SIM comprises an international mobile subscriber identity (IMSI), which is an identification data unique to the subscriber.
  • IMSI international mobile subscriber identity
  • the SIM further comprises a key (Ki) that is for authentication.
  • the SIM comprises a microprocessor that is programmed to execute an authentication algorithm.
  • the authentication algorithm calculates a result on the basis of an input data and the key.
  • the input data is typically a random number.
  • a SIM has a certain data storage capacity.
  • the storage capacity substantially determines the functional capability of a SIM.
  • a SIM with a relatively large data storage capacity can accommodate one or more special directories, menu functions, games and other value added services.
  • Recent SIMs typically have more data storage capacity than SIMs that were fabricated and distributed a few years ago. It is expected that the functional capabilities of a SIM will continue to grow thanks to technological progress. It may therefore be desirable to replace an existing SIM that has a relatively small functional capability by a modern SIM that offers a relatively large functional capability.
  • a method of replacing an old identification device by a new identification device comprises the following steps: a first association step in which a data is associated with the new identification device; a calculation step in which the old identification device calculates a result on the basis of the data associated with the new identification device and a key comprised in the old identification device; and a second association step in which the result is associated with the new identification device.
  • a method of assigning an account to a new identification device comprises the following steps: a first association step in which a data is associated with the new identification device; a calculation step in which the old identification device calculates a result on the basis of the data associated with the new identification device and a key comprised in the old identification device; - a second association step in which the result is associated with the new identification device; and a transfer step in which an account manager verifies whether the result that is associated with the new identification device corresponds to an expected result that is based on the data associated with the new identification device and the key comprised in the old identification device, and, if so, in which the account manager assigns the account to the new identification device.
  • both a data and a result, which is calculated by the old identification device on the basis of the data, is associated with the new identification device.
  • the new identification device need not be assigned in advance to a particular account.
  • the new identification device can be distributed and sold "anonymously". A subscriber who buys such a new identification device can personalize the device and then assign the new identification device to his account in accordance with the invention.
  • Fig. 1 illustrates a mobile phone
  • Fig. 2 illustrates an old SIM
  • Fig. 3 illustrates a copying device with the old SIM and a new SIM inserted therein.
  • Fig. 4 illustrates a series of steps that the copying device carries out;
  • Fig. 5 illustrates the new SIM after the series of steps in Fig. 4;
  • Fig. 6 illustrates how an account, which was previously assigned to the old SIM, is assigned to the new SIM.
  • GSM mobile telephony is defined in a set of GSM standards issued by the European Telecommunication Standards Institute (ETSI), which set of standard are incorporated herein by reference.
  • ETSI European Telecommunication Standards Institute
  • Fig. 1 illustrates a mobile phone MOB for a GSM mobile phone network.
  • the phone mobile phone MOB includes a subscriber identity module SIM.
  • SIM subscriber identity module
  • a GSM network operator has delivered the SIM to a subscriber, for example, via the postal service or a retailer.
  • the subscriber identity module SIM is personal to the subscriber.
  • the subscriber inserts the SIM into the mobile phone MOB, which is typically done in the following manner.
  • the subscriber removes a cover of the mobile phone MOB. This gives access to a cradle wherein the SIM is to be fitted.
  • the SIM can easily be removed from the mobile phone MOB. It is assumed that the subscriber identity module SIM needs to be replaced by a new subscriber identity module.
  • the SIM that needs to be replaced will be called "old subscriber identity module" hereinafter.
  • the new subscriber identity module may be delivered to the subscriber in various manners. For example, the GSM network operator may send the new subscriber identity module via the postal service. It is also possible that, for example, the subscriber goes to a retailer who distributes new subscriber identity modules.
  • Fig. 2 illustrates the old subscriber identity module SIM__old.
  • the old subscriber identity module SIM_old comprises an old international mobile subscriber identity IMSI_old, an old key old key Ki_old, and personal data PD.
  • An international mobile subscriber identity is a unique data by means of which a particular subscriber is identified within the GSM mobile phone network.
  • a key serves to encipher data.
  • the enciphered data may constitute another key.
  • the personal data PD may comprise, for example, short messages that have been transmitted to the mobile phone MOB or that will be transmitted by the mobile phone MOB, and abbreviated dialing numbers ADN.
  • the short messages are typically stored in a short- message elementary file short-message elementary file EF -ms.
  • Fig. 3 illustrates a copying device copying device CPYSIM in which the old subscriber identity module SIM_old is inserted.
  • the new subscriber identity module SIMjnew is inserted in the copying device CPYSIM too.
  • the copying device CPYSIM comprises a micro-.controller of relatively simple structure that comprises a program memory into which a program can be written. The micro controller is involved in executing the steps described hereinafter with reference to Fig. 4.
  • the new subscriber identity module SIMjnew comprises a new international mobile subscriber identity IMSI_new, a new key Kijnew, a tag TAG and a random number random number RND.
  • the tag TAG is a special data that indicates that the new subscriber identity module SIM_new is a subscriber identity module destined to replace an existing subscriber identity module.
  • the random number random number RND has been written into new subscriber identity module SIM_new during a personalization step, which is typically carried out in a personalization center, before old subscriber identity module SIM_old was send via the postal service or shipped to the retailer.
  • the tag TAG and the random number RND are part of a specific elementary file EF_specific.
  • the specific elementary file EF_specific itself is part of a telecom directory file DF_telecom.
  • the new subscriber identity module SIMjnew comprises a set of instructions that constitute a copy program CPRG to be executed by the copying device CPYSIM.
  • Fig. 4 illustrates a series of steps SA that the copying device CPYSIM carries out.
  • step SA1 the copying device CPYSIM sends a reset command RST to the old subscriber identity module SIM_old and to the new subscriber identity module SIM_new.
  • the old subscriber identity module SIM_old and the new subscriber identity module SIMjnew respond with a so-called "answer to reset" ATR.
  • the copying device CPYSIM checks the presence of both subscriber identity modules. If the copying device CPYSIM does not receive a correct "answers to reset" from each subscriber identity module, the copying device CPYSIM will not proceed to carry out the further steps described hereinafter.
  • step SA2 the copying device CPYSIM retrieves the copy program from the new subscriber identity module SIM iew.
  • the copying device CPYSIM recognizes from the "answer to reset" ATR it receives from the new subscriber identity module SIMjnew that the new subscriber identity module SIMjnew contains a program to be executed.
  • the copying device CPYSIM retrieves the copy program from the new subscriber identity module SIMjnew and stores the copy program into its program memory.
  • the copy program causes the copying device CPYSIM to carry out the steps described hereinafter with reference to Fig. 4.
  • CHV1 first card-holder- value
  • step SA4 the subscriber enters his PIN code.
  • the old subscriber identity module SIMjold checks whether the PIN code corresponds to the CHVl present in the old subscriber identity module SIM_old. If so, the old subscriber identity module SIM old will grant the copying device CPYSIM access to certain data contained in the old subscriber identity module SIM_old such as, for example, the old international mobile subscriber identity IMSI old. If the PIN code does not correspond to the CHVl, the old subscriber identity module SIMjold will not grant such access. This will prevent the copying device CPYSIM to carry out the further steps described hereinafter.
  • step SA5 the copying device CPYSIM reads the tag TAG contained in the specific elementary file EFjspecific of the new subscriber identity module SIMjnew. To that end, the copying device CPYSIM first selects the telecom directory file DF_telecom. Subsequently, the copying device CPYSIM selects the specific elementary file EF specific. The copying device CPYSIM retrieves data concerning the file and the length of the records contained therein. Subsequently, the copying device CPYSIM reads the tag TAG from the specific elementary file EFj-pecific.
  • the copying device CPYSIM copies the old international mobile subscriber identity IMSI_old, which is present in the old subscriber identity module SIM_old, to the new subscriber identity module SIMjnew.
  • the copying device CPYSIM first selects the appropriate files within the old subscriber identity module SIM_old. Subsequently, the copying device CPYSIM reads the old international mobile subscriber identity IMSI old from the old subscriber identity module SIMjold. The copying device CPYSIM writes the old international mobile subscriber identity IMSIjold into the specific elementary file EFjspecific of the new subscriber identity module SIMjiew.
  • step SA8 the copying device CPYSIM reads the random number RND from the new subscriber identity module SIMjnew. Subsequently, the copying device CPYSIM includes the random number RND as a parameter in a so-called RUN GSM command known from the GSM standard. The copying device CPYSIM applies the RUN GSM command with the random number RND included therein to the old subscriber identity module SIM_old. In response, the old subscriber identity module SIMjold calculates a result SRES on the basis of the random number RND and the old key Ki_old belonging to the old subscriber identity module SIM -ld. Furthermore, the old subscriber identity module SIMjold send the result SRES to the copying device CPYSIM.
  • step SA9 the copying device CPYSIM writes the result SRES in the specific elementary file EFjspecific of the new subscriber identity module SIMjnew.
  • the copying device CPYSIM first selects the specific elementary file EFjspecific of the new subscriber identity module SIMjnew. Subsequently, the copying device CPYSIM writes the result SRES into the specific elementary file EFjspecific.
  • the copying device CPYSIM copies the short-message elementary file EFjsms of the old subscriber identity module SIMjold to the new subscriber identity module SIMjnew.
  • the copying device CPYSIM first selects the short-message elementary file EFjsms of the old subscriber identity module SIMjold. Furthermore, the copying device CPYSIM retrieves data concerning the length of the short-message elementary file EFjsms and the length of the records contained in the short-message elementary file EFjsms. The copying device CPYSIM writes this data into the new subscriber identity module SIMjnew.
  • the new subscriber identity module SIMjnew contains a short-message elementary file EFjsms whose configuration is identical to the short-message elementary file EF sms in the old subscriber identity module SIMjold. Subsequently, the new subscriber identity module SIMjnew selects the short-message elementary file EFjsms in the new subscriber identity module SIMjnew. The copying device CPYSIM then copies the records contained in the old subscriber identity module SIMjold in the new subscriber identity module SIMjnew on a record-by-record basis.
  • the copying device CPYSIM copies the abbreviated dialling elementary file EF_adn of the old subscriber identity module SIMjold to the new subscriber identity module SIMjnew.
  • the copying device CPYSIM first selects the specific elementary file EFjspecific of the new subscriber identity module SIMjnew. Subsequently, the copying device CPYSIM selects the abbreviated dialling elementary file EF_adn of the old subscriber identity module SIMjold. Furthermore, the copying device CPYSIM retrieves data concerning the length of the abbreviated dialling elementary file EF_adn and the length of the records contained in the abbreviated dialling elementary file EFjadn.
  • the copying device CPYSIM writes this data into the new subscriber identity module SIMjnew.
  • the result is that the new subscriber identity module SIMjnew contains an abbreviated dialling elementary file EF adn whose configuration is identical to the abbreviated dialling elementary file EF_adn of the old subscriber identity module SIMjold.
  • the new subscriber identity module SIMjnew selects the abbreviated dialling elementary file EF_adn in the new subscriber identity module SIMjnew.
  • the copying device CPYSIM then copies the records contained in the old subscriber identity module SIMjold in the new subscriber identity module SIMjnew on a record-by-record basis.
  • step SA12 the copying device CPYSIM replaces a default value of the CHVl of the new subscriber identity module SIMjnew by the PIN code that was presented to the old subscriber identity module SIMjold and accepted by the old subscriber identity module SIM_old.
  • the copying device CPYSIM send a "replace CHV" command to the new subscriber identity module SIMjnew.
  • This command includes the PIN code as a parameter.
  • the new subscriber identity module SIMjnew replaces the default value of the CHVl by the PIN code belonging to the old subscriber identity module SIM_old.
  • step SA13 the copying device CPYSIM writes final data into the new subscriber identity module SIMjnew, which indicates that personal data has been successfully copied from the old subscriber identity module SIMjold to the new subscriber identity module SIMjnew.
  • the copying device CPYSIM blocks the old subscriber identity module SIM_old for further use.
  • the copying device CPYSIM presents several times a wrong PIN to the old subscriber identity module SIMjold.
  • a subscriber identity module is typically programmed to block itself when the subscriber identity module has received a wrong PIN several times in succession. This is a precaution against fraud.
  • the copying device CPYSIM simulates fraud, which causes the old subscriber identity module SIM_old to block itself: the old subscriber identity module SIM_old cannot be accessed anymore unless a special unblocking procedure is applied.
  • Fig. 5 illustrates the new subscriber identity module SIMjnew after steps described hereinbefore with reference to Fig. 4 have been carried out.
  • the new subscriber identity module SIMjnew comprises the new international mobile subscriber identity new international mobile subscriber identity IMSIjnew and the new key Kijnew. These were already present in the new subscriber identity module SIMjnew when the subscriber received the new subscriber identity module SIMjnew and before the steps illustrated in Fig. 4 were carried out.
  • the new subscriber identity module SIMjnew comprises the old international mobile subscriber identity IMSIjold, the result SRES and the personal data PD that originate from the old subscriber identity module SIMjold.
  • Fig. 6 illustrates in a conceptual manner how the account of the subscriber is assigned to the old subscriber identity module SIM_old.
  • FIG. 6 illustrates the mobile phone MOB with the new subscriber identity module SIMjnew; the subscriber has inserted the new subscriber identity module SIMjnew in the mobile phone MOB.
  • Fig. 6 further illustrates a GSM network NW and an operator system GOS.
  • the operator system GOS comprises a subscriber database VLR/AUC, a personalization database PERS and an account server ACS.
  • the account server ACS is a data processing arrangement that comprises a set of instructions (a software) that causes the data processing arrangement to carry out relevant elements of the steps described hereinafter.
  • step SB1 the mobile phone MOB establishes a connection to the GSM network NW.
  • the mobile phone MOB transmits the new international mobile subscriber identity
  • the operator system GOS recognizes that no account has been assigned yet to the new international mobile subscriber identity IMSIjnew. Furthermore, the operator system GOS recognizes that the new international mobile subscriber identity IMSIjnew belongs to a subscriber identity module that is destined to replace another, old subscriber identity module. In response, the operator system GOS interrogates the mobile phone MOB and the new subscriber identity module SIMjnew therein so as to cause the mobile phone MOB to transmit the IMSIjold and the result SRES.
  • step SB2 the operator system GOS retrieves the old key Kijold on the basis of the IMSI_old received.
  • the operator system GOS retrieves from the personalization database PERS the random number RND that was written into the new subscriber identity module SIMjnew during the personalization phase.
  • the operator system GOS is able to retrieve the random number RND on the basis of the new international mobile subscriber identity IMSIjnew with which the random number RND is associated.
  • the operator system GOS calculates a result on the basis of the random number RND retrieved from the personalization database PERS and the old key Kijold retrieved from the subscriber database VLR/AUC.
  • the operator system GOS calculates the result using the same algorithm that the old subscriber identity module SIMjold used to calculate the result SRES during the steps illustrated in Fig. 4.
  • step SB4 the operator system GOS compares the result that it has calculated with the result SRES, which is contained in the new subscriber identity module SIMjnew and which was transmitted to the operator system GOS as a result of the interrogation in step SB1. If this result is identical to the result SRES, the operator system GOS carries out step SB 5. If the results are not identical, the operator system GOS recognizes that something is wrong and takes an appropriate action such as, for example, sending a message to the mobile phone MOB that there has been an error.
  • step SB5 the operator system GOS assigns the account of the subscriber to the new subscriber identity module SIMjnew. Furthermore, the operator system GOS decouples the account from the old subscriber identity module SIM -ld. Accordingly, when the mobile phone MOB with the new subscriber identity module SIMjnew inserted therein connects to the GSM network NW, the access to the GSM network NW is governed by the account of the subscriber. The old subscriber identity module SIMjold is of no use any longer.
  • a new identification device replaces an old identification device (SIMjold) in the following manner.
  • a data is associated with the new identification device (RND written into the SIMjnew during personalization phase).
  • the old identification device calculates a result (SRES) on the basis of the data (RND) associated with the new identification device and a key (Kijold) comprised in the old identification device.
  • the result (SRES) is associated with the new identification device (SRES is written into the SIMjnew).
  • the old SIM is coupled to a personal computer (PC), which can communicate with the cellular network operator via, for example, the Internet.
  • PC personal computer
  • the cellular phone operator applies a random number to the old SIM with the RUN GSM algorithm.
  • the old SIM calculates a result SRES.
  • the PC reads the result SRES and the IMSI of the old SIM and stores these two data.
  • the new SIM is coupled to the PC.
  • the new SIM sends its IMSI to the cellular network operator.
  • the cellular network operator recognizes the IMSI as one belonging to a SIM destined to replace a previous SIM.
  • the cellular network operator reads from the PC the IMSI of the old SIM and the result SRES originating from the old SIM. This allows the cellular network operator to make a secure link between the old SIM and the new SIM.
  • the cellular network operator can then assign the account that belonged to the old SIM to the new SIM. In addition, he may decouple the account from the old SIM.
  • a card comprises a functional set of instructions that a reader (CPYSIM) can execute, the reader comprises a basic set of instructions which causes the reader to retrieve the functional set of instructions from the card, and the functional set of instructions causes the reader to manipulate data contained in the card.

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Strategic Management (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Accounting & Taxation (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un nouveau dispositif d'identification qui remplace un ancien. Le procédé de remplacement comprend une première étape d'association, des données étant associées au nouveau dispositif d'identification, puis une étape de calcul, l'ancien dispositif d'identification calculant un résultat sur la base des données associées au nouveau dispositif d'identification et à une clé comprise dans l'ancien dispositif d'identification, et une seconde étape d'association au cours de laquelle le résultat est associé au nouveau dispositif d'identification.
PCT/IB2003/001328 2002-04-10 2003-04-10 Procede et dispositifs pour remplacer un dispositif d'identification usage par un neuf Ceased WO2003085612A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003226577A AU2003226577A1 (en) 2002-04-10 2003-04-10 Method and devices for replacing an old identification device by a new identification device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02076419 2002-04-10
EP02076419.7 2002-04-10

Publications (1)

Publication Number Publication Date
WO2003085612A1 true WO2003085612A1 (fr) 2003-10-16

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Application Number Title Priority Date Filing Date
PCT/IB2003/001328 Ceased WO2003085612A1 (fr) 2002-04-10 2003-04-10 Procede et dispositifs pour remplacer un dispositif d'identification usage par un neuf

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AU (1) AU2003226577A1 (fr)
WO (1) WO2003085612A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1662832A1 (fr) * 2004-11-30 2006-05-31 Axalto SA Conservation de la continuité de service dans un réseau de télécommunication
WO2010015883A1 (fr) * 2008-08-07 2010-02-11 Turkcell Teknoloji Arastirma &Gelistirme Anonim Sirketi Système de personnalisation de carte sim
EP1528825A4 (fr) * 2002-05-10 2011-03-02 Schlumberger Beijing Smart Cards Technology Co Ltd Procede et systeme de remplacement d'une carte a puce
WO2011153104A1 (fr) 2010-06-04 2011-12-08 Research In Motion Limited Ensemble et procédé associé de maîtrise de l'élimination de données d'entreprise au niveau d'un dispositif sans fil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007697A1 (fr) * 1991-09-30 1993-04-15 Comvik Gsm Ab Procede de personnalisation d'une carte active
EP0829831A1 (fr) * 1996-09-13 1998-03-18 Schlumberger Industries S.A. Méthode d'authentification de cartes
FR2771528A1 (fr) * 1997-11-25 1999-05-28 Gemplus Card Int Procede de gestion des donnees dans une carte a puce

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993007697A1 (fr) * 1991-09-30 1993-04-15 Comvik Gsm Ab Procede de personnalisation d'une carte active
EP0829831A1 (fr) * 1996-09-13 1998-03-18 Schlumberger Industries S.A. Méthode d'authentification de cartes
FR2771528A1 (fr) * 1997-11-25 1999-05-28 Gemplus Card Int Procede de gestion des donnees dans une carte a puce

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528825A4 (fr) * 2002-05-10 2011-03-02 Schlumberger Beijing Smart Cards Technology Co Ltd Procede et systeme de remplacement d'une carte a puce
EP1662832A1 (fr) * 2004-11-30 2006-05-31 Axalto SA Conservation de la continuité de service dans un réseau de télécommunication
WO2006059203A3 (fr) * 2004-11-30 2006-08-10 Axalto Sa Protection de la continuite d'un service dans un reseau de telecommunication
WO2010015883A1 (fr) * 2008-08-07 2010-02-11 Turkcell Teknoloji Arastirma &Gelistirme Anonim Sirketi Système de personnalisation de carte sim
WO2011153104A1 (fr) 2010-06-04 2011-12-08 Research In Motion Limited Ensemble et procédé associé de maîtrise de l'élimination de données d'entreprise au niveau d'un dispositif sans fil

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