Patents Assigned to GEMALTO
  • METHOD FOR SECURELY DRAWING UP A VIRTUAL MULTIPARTY CONTRACT CAPABLE OF BEING PHYSICALLY REPRESENTED
    Publication number: 20110296191
    Abstract: The invention relates to a method for securely drawing up a multiparty contract using digital certificates and electronic devices. Said method includes at least three steps: signing, countersigning, and formatting. The formatted document has the specific feature of being capable of being physically represented.
    Type: Application
    Filed: February 24, 2010
    Publication date: December 1, 2011
    Applicant: GEMALTO SA
    Inventor: Stéphane Mouille
  • PORTABLE OBJECT INCLUDING A DISPLAY AND APPLICATION FOR CARRYING OUT ELECTRONIC TRANSACTIONS
    Publication number: 20110284633
    Abstract: The invention relates to a smart portable object including a safety component and a display, wherein the display is directly or indirectly interactive between a user and the safety component. The invention also relates to the use of a portable object for implementing an electronic transaction, including a display step for displaying all or some of the information that is useful to a user for the transaction and/or a step of interacting with the user, wherein the display and/or interaction step is carried out via said interactive display.
    Type: Application
    Filed: November 30, 2009
    Publication date: November 24, 2011
    Applicant: GEMALTO SA
    Inventor: Daniel Boucher
  • Method of securing a calculation of an exponentiation or a multiplication by a scalar in an electronic device
    Patent number: 8065735
    Abstract: A cryptographic operation includes calculating a multiplication of an element of an additively denoted group by a scalar. After two registers R0+R1, are initialized, iterations are carried out over the components Ki of the scalar K. If Ki of the scalar equals 0, then the value in register R1 is replaced by 2(R0+R1) If Ki equals 1, the value in register R0 is replaced by 2(R0+R1). At the end of the algorithm, the value of the register R0 is returned as the calculated result. This method poses the advantage of carrying out a calculation of multiplying by a scalar by carrying out only doubling and adding operations of the type 2(A+B).
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: November 22, 2011
    Assignee: Gemalto SA
    Inventor: Marc Joye
  • METHOD FOR PRODUCING AN ELECTRONIC OBJECT COMPRISING A DATA TRANSFER STAGE AND THE OBTAINED OBJECT
    Publication number: 20110281466
    Abstract: A method for producing a portable electronic object having contact pads arranged on a plane with a thickness which differs from the thickness of a standard smartcard. The object is electrically connected to data transfer station connectors, by delivering a data transfer station having an electric probe connector and submitting the object to the data transfer station in such a way that the contact pads thereof are accessible to the electric probes in a direction perpendicular to the plane. Objects obtainable include UBS keys or PCMCIA cards or readers.
    Type: Application
    Filed: June 7, 2011
    Publication date: November 17, 2011
    Applicant: Gemalto SA
    Inventors: Pierre-André Collet, Thierry Karlisch, François Moutel
  • METHOD FOR ESTABLISHING A SECURED COMMUNICATION WITHOUT PRELIMINARY INFORMATION SHARE
    Publication number: 20110283107
    Abstract: The invention relates to a method for generating a session key between two communicating electronic devices not requiring any prerecorded information in one of the two devices and enabling the authentication of one of said devices. The method uses a close collaboration between a symmetrical algorithm and an asymmetrical algorithm.
    Type: Application
    Filed: January 26, 2010
    Publication date: November 17, 2011
    Applicant: Gemalto SA
    Inventors: Karine Villegas, Aline Gouget, Louis Goubin, Pascal Paillier
  • CRYPTOGRAPHIC ALGORITHM FAULT PROTECTIONS
    Publication number: 20110274268
    Abstract: The invention relates to a method for securing the execution of a cryptographic algorithm A against fault attacks. Given a cryptographic key K0 and a message M, the cryptographic algorithm A is set to compute a value A(KO,M). Given a relationship R between A(KO,M) and A(f(K0),g(M)), where f and g are two bijections, and where f is different from the identity function, the method comprises: a. computing the expected result A(KO,M) of the cryptographic algorithm b. computing a modified result A(f(K0),g(M)), by applying the cryptographic algorithm A on a modified key f(K0) and on a message g(M), c. checking whether the relationship R between the values A(KO,M) and A(f(K0),g(M)) computed in the two preceding steps is verified d. detecting an attack if the relationship R is not verified. The invention also relates to a cryptographic device embodying the above method.
    Type: Application
    Filed: October 9, 2009
    Publication date: November 10, 2011
    Applicant: GEMALTO SA
    Inventors: David Vigilant, Stéphanie Salgado
  • DEVICE OF SD TYPE USING A SINGLE WIRE PROTOCOL
    Publication number: 20110270999
    Abstract: The invention is a portable electronic device comprising a non volatile memory and a memory controller. The portable electronic device comprises a connector having eight pads able to communicate using a protocol of Secure Digital® type. The connector comprises at least one additional pad intended to be linked to an antenna. The additional pad is able to communicate using a protocol of SWP type.
    Type: Application
    Filed: August 21, 2009
    Publication date: November 3, 2011
    Applicant: GEMALTO SA
    Inventors: Francois-Xavier Marseille, Michel Thill
  • PORTABLE SECURITY DEVICE PROTECTION AGAINST KEYSTROKE LOGGERS
    Publication number: 20110265156
    Abstract: The invention relates to a portable security device (SC, TK) comprising host connection means (PAD_H, USB_M) for connecting to a computer (PC), client connection means (PAD_C, USB_F) for connecting to an input device (KBD), filtering means for intercepting sensitive data transmitted from the client connection means (PAD_C, USB_F) to the host connection means (PAD_H, USB_M), and protection means for protecting said sensitive data. The invention also relates to an input device comprising a portable security device, to a server, to a system comprising a portable security device, a computer and an input device, and to a method for securing data entered into a computer (PC) with an input device (KBD), the method comprising installing a portable security device (TK) between the computer (PC) and the input device (KBD).
    Type: Application
    Filed: December 21, 2009
    Publication date: October 27, 2011
    Applicant: GEMALTO SA
    Inventor: Bart J. Bombay
  • METHOD FOR ACCESSING ONE APPLICATION OR A SET OF APPLICATIONS FROM OR THROUGH A TOKEN, CORRESPONDING TOKEN AND SYSTEM
    Publication number: 20110261000
    Abstract: The invention relates to a method for accessing an application or a set of applications from or through a token. The token is coupled to a terminal that comprises at least one touch surface. According to the invention, the method comprises steps in which the terminal compares an input touch pattern with at least one predetermined input touch pattern relating to one application or a set of applications accessible from the token, and, according to a comparison result, the terminal sends or not to the token either a command for requesting a display of a set of at least one application accessible from the token or a command for triggering an execution of an application accessible from the token, the command being associated with a matching predetermined input touch pattern. The invention relates also to a corresponding token and a corresponding system comprising the token.
    Type: Application
    Filed: October 26, 2009
    Publication date: October 27, 2011
    Applicant: GEMALTO SA
    Inventor: Akram Batara
  • Message authentication device
    Patent number: 8046584
    Abstract: Method for checking the signature of a message. The message, signature, and a certificate are sent by a signer having a public key to a recipient having a message storage device. The certificate is checked by a protected device connected to the message storage device and a checking result data element is sent for checking to a display device connected to the protected device. When the certificate is verified, a reduction of the message is calculated in the protected device and the message is recopied onto the display device. The signature is decrypted using the public key in the protected device, and the decrypted signature is compared with the reduction carried out. According to the comparison, a message is sent from the protected device to the display device indicating whether the signature conforms or does not conform to the message or to the public key of the signer put forward.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: October 25, 2011
    Assignee: Gemalto SA
    Inventor: Arnaud Fausse
  • METHOD OF PROTECTION OF DATA DURING THE EXECUTION OF A SOFTWARE CODE IN AN ELECTRONIC DEVICE
    Publication number: 20110258397
    Abstract: The invention is a method of protecting a data intended to be accessed by an operating system embedded in an electronic device. The operating system is intended to manage an object comprising a header and a body. The data is stored in the body. The object is recorded in a memory of the electronic device. The electronic device comprises a memory manager able to provide access to the memory. The memory manager forbids the operating system to access the body as long as a preset action has not been successfully performed.
    Type: Application
    Filed: December 15, 2009
    Publication date: October 20, 2011
    Applicant: GEMALTO SA
    Inventors: Laurent Gauteron, Daniel Le Cardinal
  • METHOD FOR ESTABLISHING A LINK BETWEEN THE APPLICATIONS OF AN AUTHENTICATION CARD OF A SUBSCRIBER AND AN IMS NETWORK
    Publication number: 20110252140
    Abstract: The invention relates to a method for establishing a secured link between an authentication card of a subscriber and a telecommunication network, the card being connected to a mobile terminal, wherein the method includes the steps of establishing a secure link between the terminal and an IMS network; and sharing the resources of the secure link between the terminal and the card.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 13, 2011
    Applicant: GEMALTO SA
    Inventors: Jacques Seif, Hervé Ganem
  • DATA PROVIDING PROCESS BASED ON AN IBPE SCHEME
    Publication number: 20110243328
    Abstract: The present invention is a method to ensure a secure exchange of crypted numeric data between two entities, where their decryption depends to the approval of a third entity. The solution uses a combination of Identity Based Encryption scheme, and transcription trap use.
    Type: Application
    Filed: August 27, 2009
    Publication date: October 6, 2011
    Applicant: GEMALTO SA
    Inventors: Pascal Paillier, Aline Gouget
  • Method of updating an authentication algorithm in a computer system
    Patent number: 8031871
    Abstract: The invention relates to a method of updating an authentication algorithm in at least one data processing device (CARD, SERV) which can store a subscriber identity (IMSI1) which is associated with an authentication algorithm (Algo1) in a memory element of said device (CARD, SERV). The inventive method comprises the following steps, namely: a step whereby a second inactive (Algo2) authentication algorithm is pre-stored in a memory element of the device and a step for switching from the first algorithm (Algo1) to the second algorithm (Algo2) which can inhibit the first algorithm (Algo1) and activate the second (Algo2).
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: October 4, 2011
    Assignee: Gemalto SA
    Inventors: Patrice Beaudou, Christophe Dubois
  • System for allocating a chip card to a network operator
    Patent number: 8032748
    Abstract: A chip card needs to be allocated in a secured manner to a network operator via a personalization center in order to determine a final authentication key which is attributed to a subscriber of the operator without its being transmitted via a network. The following is loaded into a card by a module: an algorithm and an allocation key; an algorithm for determination of the authentication key and at least one intermediate authentication key. A module transmits an allocation message which includes a final identity number, a random number and an allocation signature from the center to the card. The card authenticates the message by means of the allocation algorithm as a function of the allocation key and the allocation signature, and determines the final authentication key as a function of the intermediate key and the random number.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: October 4, 2011
    Assignee: Gemalto SA
    Inventors: Lionel Merrien, Gary Chew, Max De Groot
  • METHOD FOR SECURING JAVA BYTECODE
    Publication number: 20110239307
    Abstract: The invention relates to a virtual machine. The virtual machine is set to recognize, in addition to a set of conventional bytecodes, at least one secure bytecode functionally equivalent to one of the conventional bytecodes. It is set to process secure bytecodes with increased security, while it is set to process conventional bytecodes with increased speed. The invention also relates to a computing device comprising such a virtual machine, to a procedure for generating bytecode executable by such a virtual machine, and to an applet development tool comprising such procedure.
    Type: Application
    Filed: December 9, 2009
    Publication date: September 29, 2011
    Applicant: GEMALTO SA
    Inventors: Olivier Joffray, Milan Krizenecky
  • RADIOFREQUENCY COMMUNICATION DEVICE WITH AN OFFSET ANTENNA
    Publication number: 20110230147
    Abstract: The invention relates to a radiofrequency communication device that comprises a gripping beating body having a surface; an electronic and/or electric circuit extending in the gripping beating body; at least one antenna provided in the vicinity of the electronic circuit. The device includes a connection circuit for connection to the antenna, that is provided at least partially in the gripping beating body and extends from the electronic circuit up to connection points of the antenna, said antenna connection points being accessible from the outside of the beating body.
    Type: Application
    Filed: November 24, 2009
    Publication date: September 22, 2011
    Applicant: Gemalto SA
    Inventors: Jean-Francois Schuh, Didier Bonnet
  • ELECTRONIC PAYMENT TERMINAL
    Publication number: 20110226855
    Abstract: A card reader payment terminal including an electronic circuit including at least one printed circuit board, to which are connected electronic components, including a microcontroller designed to control different peripherals, where the microcontroller is connected to an associated microprocessor, where the card reader payment terminal is configured to receive a smart card comprising the associated microprocessor, where the associated microprocessor comprises a connector compatible with the standardized connector of smart cards for connection with the microcontroller, where the microcontroller and the associated microprocessor operate in parallel for executing a task, and where the associated microprocessor is adapted to calculate a security operation.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 22, 2011
    Applicant: GEMALTO SA
    Inventor: Dominique Quesselaire
  • METHOD FOR BOOTING PORTABLE OBJECTS WITH MULTIPLE COMMUNICATION INTERFACES
    Publication number: 20110225404
    Abstract: A boot sequence method comprises a determination step 110 and 200, a first starting step 120, 210 or 240 for starting a first interface, a first negotiation step 140 or 220 wherein a power negotiation is performed, a second negotiation step 140 or 230 for determining the interfaces to activate simultaneously, and a second starting step 150 or 230 wherein the interfaces that can be activated simultaneously are started one after each other.
    Type: Application
    Filed: July 30, 2008
    Publication date: September 15, 2011
    Applicant: GEMALTO SA
    Inventors: Michel Thill, Laurent Castillo
  • Assembly consisting of a micro-module and a reproducing device which is equipped with contact-free near-communication means
    Patent number: 8011590
    Abstract: A portable communication device for at least mono-directional communication with a terminal is disclosed. The portable communication device includes a micro-module including a chip that has an antenna allowing the micro-module to communicate with the terminal when the antenna is placed in the immediate vicinity of the terminal. The portable device further includes a reader receiving the removable micro-module, and the antenna is held by the reader such that the micro-module is removable relative to the antenna.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: September 6, 2011
    Assignee: Gemalto SA
    Inventor: Joseph Jerome Leibenguth