Patents by Inventor Michel LE ROLLAND

Michel LE ROLLAND has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11727153
    Abstract: A System on Chip includes at least two hardware masters, a security circuit, and a communication infrastructure for communication between the hardware masters and the security circuit, the communication infrastructure being based on a given interface communication protocol. Each hardware master is configured to send a request to the security circuit for execution of the request by the security circuit through the communication infrastructure, each request comprising at least one service identifier identifying a service.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: August 15, 2023
    Assignee: SECURE-IC SAS
    Inventors: Rachid Dafali, Freddy David, Michel Le Rolland, Karine Lorvellec
  • Patent number: 11546132
    Abstract: Countermeasures against fault injection attacks of a cryptographic integrated circuit, and more specifically laser fault injection attacks are provided. The invention consists in generating sequences of bits belonging to a set of allowed sequences, and storing these sequences on a set of Flip-Flops. Then the sequences stored on the Flip-Flops are checked and, if they do not belong to the allowed sequence, this is the sign that a fault injection attack occurred and caused a bit flip in one of the flip-flops. An alarm signal is then generated.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: January 3, 2023
    Assignee: SECURE-IC SAS
    Inventors: Sylvain Guilley, Michel Le Rolland
  • Publication number: 20220067157
    Abstract: Embodiments provide a memory device including a memory comprising at least one chip, each chip comprising one or more banks for storing a plurality of bits, each bank comprising a set of rows and columns, each row and column comprising a number of bits, the device further comprising a controller configured to generate access commands to the memory, an access command identifying an address corresponding to a given row of the memory and a command operation to be performed on the given row, wherein the device further comprises a protection device. The protection device is configured to transform an address, in response to the receipt of an access command identifying the address, into a transformed address.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 3, 2022
    Inventors: Michel LE ROLLAND, Sylvain GUILLEY, Adrien FACON
  • Publication number: 20210328761
    Abstract: Countermeasures against fault injection attacks of a cryptographic integrated circuit, and more specifically laser fault injection attacks are provided. The invention consists in generating sequences of bits belonging to a set of allowed sequences, and storing these sequences on a set of Flip-Flops. Then the sequences stored on the Flip-Flops are checked and, if they do not belong to the allowed sequence, this is the sign that a fault injection attack occurred and caused a bit flip in one of the flip-flops. An alarm signal is then generated.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 21, 2021
    Inventors: Sylvain GUILLEY, Michel LE ROLLAND
  • Publication number: 20210312091
    Abstract: A System on Chip includes at least two hardware masters, a security circuit, and a communication infrastructure for communication between the hardware masters and the security circuit, the communication infrastructure being based on a given interface communication protocol. Each hardware master is configured to send a request to the security circuit for execution of the request by the security circuit through the communication infrastructure, each request comprising at least one service identifier identifying a service.
    Type: Application
    Filed: May 24, 2019
    Publication date: October 7, 2021
    Inventors: Rachid DAFALI, Freddy DAVID, Michel LE ROLLAND, Karine LORVELLEC