Patents Assigned to GEMALTO
  • Publication number: 20100177887
    Abstract: The invention relates to a cryptographic method that incorporates a modular exponentiation secured against hidden channel attacks, without requiring knowledge of the public exponent. The method includes a modular exponentiation and the following steps: drawing of a random value s; initialization of variables with the aid of s; application of an algorithm enabling a loop invariant to be retained by virtue of the properties of the Montgomery multiplier Mgt; unmasking of the result of the algorithm to obtain the signature of the message.
    Type: Application
    Filed: May 2, 2008
    Publication date: July 15, 2010
    Applicant: GEMALTO SA
    Inventors: Mathieu Ciet, Benoit Feix
  • Publication number: 20100175067
    Abstract: The invention relates to a method for processing at least two application commands from at least two physical communication channels respectively using a portable electronic device. The method includes receiving each application command from one of the physical communication channels, determining a priority level associated with each application command, comparing priority levels and identifying the application command with the highest priority among the application commands and processing of the application command with highest priority. The invention also relates to the portable electronic device and an electronic system including a host device cooperating with such a portable electronic device.
    Type: Application
    Filed: May 23, 2008
    Publication date: July 8, 2010
    Applicant: GEMALTO SA
    Inventors: Xavier Appe, Fabien Quatravaux
  • Patent number: 7748609
    Abstract: A client-side application extension executable on a host computer from within a web-browser having the capability of executing at least one web-browser add-on to provide a user access to a smart card, connected to the host computer having a smart card resource manager, via the web-browser. The web-browser extension has instructions to direct the central processing unit to access data on the smart card via a web-browser and platform independent interface module and a web-browser and platform dependent wrapper module connected to the web-browser and platform independent interface module and to the smart card resource manager having a function processing module operable to receive a call to the at least one function for accessing data on the smart card and for transforming the function call into a corresponding call to the smart card resource manager.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: July 6, 2010
    Assignee: Gemalto Inc.
    Inventors: Kapil Sachdeva, Ksheerabdhi Krishna
  • Publication number: 20100164220
    Abstract: The invention relates to a secure identification document having two main surfaces (S1, S2; S3,S4) and at least one edge, and comprising at least two constitution layers (20,22; 24,26), said identification document allowing preventing any separation of its constitution layers, by delamination for example, said separation being otherwise immediately apparent. The solution of the invention relates to the fact that the at least one edge of the identification document is marked with written data (23; 27) that are etched into said edge by means of a laser beam, said written data overlapping said constitution layers (20,22;24,26; 32,33,34), in order to prevent a fraudulent delamination of said document.
    Type: Application
    Filed: March 7, 2009
    Publication date: July 1, 2010
    Applicant: GEMALTO OY
    Inventor: Toni Kaskiala
  • Publication number: 20100165414
    Abstract: A method of superimposing a first image onto a second image, wherein each image is defined by a plurality of pixels is disclosed. The method includes changing target pixels of the second image corresponding in position to pixels of the first image to be superimposed on the second image. Changing target pixels of the second image includes changing the values of some of these target pixels of the second image to respective new values. Each new value is based on the original value of at least one pixel of the second image. A personalization method including such an image superimposing method and a data carrier thereby personalized are also disclosed.
    Type: Application
    Filed: August 17, 2007
    Publication date: July 1, 2010
    Applicant: Gemalto OY
    Inventors: Jorma Kautto, Toni Kaskiala
  • Patent number: 7747012
    Abstract: The invention concerns a process for securing an electronic device incorporating a hardware component capable of autonomous implementation of calculation process f using one key K, the process involves calculating at least two new keys K?i such that at least one of said new keys is identical to key K, and one of said new keys is different from key K, and executing said calculation process f successively with each of said calculated keys K?i, using said hardware component.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: June 29, 2010
    Assignee: Gemalto SA
    Inventor: Mehdi-Laurent Akkar
  • Patent number: 7740180
    Abstract: The invention concerns a method for making smart cards capable of operating with or without contact called mixed cards and contactless smart cards. In order to avoid the risk of deteriorating the antenna the method consists in producing an antenna comprising at least two turns, on a support sheet, said antenna having its turns located outside the connecting pads, and in providing an insulating bridge so as to connect each of the antenna ends to a connection pad respectively.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: June 22, 2010
    Assignee: Gemalto, S.A.
    Inventors: Stephane Ayala, Gerard Bourneix, Christine Beausoleil, David Martin, Laurent Oddou, Philippe Patrice, Michael Zafrany
  • Patent number: 7742500
    Abstract: A mobile station that includes a smart card associated with a mobile host equipment communicates by means of a protocol that is organized in several layers. These layers include at least a data transport layer of the datagram type that is adapted to transmit integral data packets of a maximum size. The transmission method carries out the step of determining the value of the maximum size of data packets that are capable of being integrally transmitted by the transport layer of the mobile host equipment, and storing that value in the card.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: June 22, 2010
    Assignee: Gemalto SA
    Inventors: François-Xavier Arques, Gilles Chene
  • Patent number: 7742595
    Abstract: The invention relates to a cryptographic method secured against a covert channel attack. According to the invention, in order to carry out a selected block of instructions as a function of an input variable amongst N predefined instruction blocks, a common block is carried out on the predefined N instruction blocks, a predefined number of times, the predefined number being associated with the selected instruction block.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 22, 2010
    Assignee: Gemalto SA
    Inventors: Marc Joye, Benoit Chevallier-Mames
  • Publication number: 20100147958
    Abstract: A method for producing a device having a transponder antenna connected to contact pads. An antenna with terminal connections is provided in contact with a substrate. The contact pads are placed on the substrate and connected to the terminal sections of the antenna. The connection is produced by means of a soldering by introducing energy between the pads and the terminal sections. The pads are placed such as to provide a surface facing an antenna terminal connection section. The section is arranged on the substrate and the soldering energy is directly applied to the pads. The invention also relates to the device obtained.
    Type: Application
    Filed: May 13, 2008
    Publication date: June 17, 2010
    Applicant: GEMALTO SA
    Inventors: Jean-Francois Martinent, Laurence Robles, François Roussel
  • Publication number: 20100153718
    Abstract: The present invention concerns a method and a system for extending a server connected with at least one client(s), characterized in that it consists in providing said extension on the client side by means of a portable object which is connected to said client and which performs at least one of the server's operation(s) in part or entirely.
    Type: Application
    Filed: June 22, 2006
    Publication date: June 17, 2010
    Applicant: GEMALTO SA
    Inventors: Laurent Castillo, Christoph Siegelin
  • Publication number: 20100146279
    Abstract: A secure portable electronic device for providing secure services when used in conjunction with a host computer having a central processing unit use two hardware device protocols readily supported by computer operating systems. Other systems and methods are disclosed.
    Type: Application
    Filed: February 1, 2008
    Publication date: June 10, 2010
    Applicant: GEMALTO S.A
    Inventors: HongQian Karen Lu, Stephane Durand, Laurent Castillo, Asad Ali, Ed Dolph
  • Patent number: 7733902
    Abstract: Application protocol data units are conveyed in a universal serial bus so that a portable electronic object such as a smart card can be recognized by a terminal, such as a micro-computer, as being a peripheral. The header and the data field, when such a data field exists, of each command are encapsulated in data fields of data packets of respective downlink transactions. The data field, when such a data field exists, and the trailer of each response are encapsulated in the data packet data field of at least one uplink transaction. By means of this bus link, the data rate between the terminal and the electronic object is higher, and a plurality of portable electronic objects can be connected to the terminal.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: June 8, 2010
    Assignee: Gemalto SA
    Inventor: Charles Coulier
  • Publication number: 20100135538
    Abstract: The invention relates to a method and to an automated device for the authentication of a set of candidate points relative to a set of reference points. The present invention is insensitive to unavoidable translation, rotation and scaling occurring upon successive but independent acquisitions of, for example, of fingerprints.
    Type: Application
    Filed: April 14, 2008
    Publication date: June 3, 2010
    Applicant: Gemalto SA
    Inventor: Claude Barral
  • Publication number: 20100138514
    Abstract: The invention relates to a method for data management in a portable electronic device connected to a host machine, said device containing a first set of data, the host machine being connected to a remote data server containing a second set of data. Said method includes the steps of: drawing up, in the device, a unique list containing the first and second sets of data, transmitting the unique list from the device to the host machine.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 3, 2010
    Applicant: GEMALTO SA
    Inventor: Emilien Charbonnier
  • Publication number: 20100131700
    Abstract: The invention relates to a memory index management system. The said system comprises an indexed storage memory, a memory zone containing the index and a microprocessor. The index is built in the form of a hierarchical tree structure and comprises at least two nodes. A node contains an identifier associated with a pointer that references either a node of the index or a memory zone in the storage memory. The content of a node is distributed over a first and a second memory zone that are separate in the memory zone. The first space has a first specific pointer that points to the second space and the second space has a second specific pointer whose value has a blank state.
    Type: Application
    Filed: October 29, 2007
    Publication date: May 27, 2010
    Applicant: GEMALTO S.A
    Inventor: Laurent Castillo
  • Patent number: 7725942
    Abstract: A method for loading data and programs in the memory of an electronic component includes a first phase in which data is loaded in the memory of the component. A validation phase then verifies the data loaded in the component memory. A second phase of loading data in the memory is carried out only if the data loaded during the first loading phase is valid. The second phase includes at least a step in which data is loaded and then validated.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: May 25, 2010
    Assignee: Gemalto SA
    Inventor: Jean-Luc Giraud
  • Publication number: 20100112934
    Abstract: The invention relates to a method for rendering content on a mobile equipment. The method includes rendering a content from a broadcasted stream. More specifically, embodiments of the invention include providing a mass memory in the mobile equipment and storing content from the broadcasted stream into the mass memory, where a remote broadcaster entity commands the mobile equipment to store the content from the broadcasted stream to the mass memory.
    Type: Application
    Filed: April 4, 2008
    Publication date: May 6, 2010
    Applicant: GEMALTO SA
    Inventor: Gabriel Rangoni
  • Publication number: 20100104801
    Abstract: A method for producing a data carrier with a see-through portion is disclosed. The method includes applying a layer of separation material (14) to a surface of one of an at least translucent layer and a backing layer, and fixedly attaching the other of the translucent layer and the backing layer to that surface of the layer. The separation material prevents a part of the backing layer abutting it from being completely fixedly attached to the translucent layer. The method further includes removing at least a portion of the backing layer abutting the separation material to uncover a portion of the translucent layer adjacent the portion of the backing layer. The uncovered portion of the translucent layer defines a see-through portion of the data carrier. A data carrier with such a see-through portion is also disclosed.
    Type: Application
    Filed: September 11, 2007
    Publication date: April 29, 2010
    Applicant: GEMALTO OY
    Inventor: Taru Syrjanen
  • Publication number: 20100103830
    Abstract: The invention relates to a method for checking the integrity of a set of data packets received by a receiving communication device from a sending communication device, the data packets of the set being received in unpredictable order. The invention also relates to a communication device implementing a method according to the invention, in particular to a smart card.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 29, 2010
    Applicant: GEMALTO SA
    Inventors: Stephanie Salgado, David Vigilant, Guillaume Fumaroli