Patents by Inventor Viola RIEGER

Viola RIEGER 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: 11308240
    Abstract: A method for cryptographic data processing by means of a circuit comprises using a first circuit section to perform a first cryptographic operation in order to obtain first cryptographic data. The method further includes transmitting the first cryptographic data to a second circuit section via a transmission area of the circuit that physically separates the second circuit section from the first circuit section and whose resistance to attacks is at most as high as the resistance of the first circuit section. The method includes using the second circuit section to perform a second cryptographic operation using the first cryptographic data in order to obtain second cryptographic data.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: April 19, 2022
    Assignee: Infineon Technologies AG
    Inventors: Alexander Zeh, Viola Rieger, Klaus Scheibert
  • Patent number: 11227072
    Abstract: The present disclosure relates to a security device, a system, and a method for securing a control apparatus. The security device includes a data security unit which is configured to secure data, data communication and information, and includes a first security component inside the data security unit to operate in a first operating mode, and at least one first monitoring unit to operate in a high-availability mode which, said first monitoring unit being configured to detect a fault present in the first security component. The high-availability mode is different from the first operating mode. The security device further includes a second security component which is configured to operate in the high-availability mode and to output a first response signal if a fault is detected by the first monitoring, where the high-availability mode is available independently from the first operating mode.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: January 18, 2022
    Inventors: Avni Bildhaiya, Viola Rieger, Frank Hellwig, Alexander Zeh
  • Publication number: 20220012092
    Abstract: A message processing component may include an execution unit configurable to execute a set of tasks associated with one or more communication network messages. The set of tasks may include at least one of a message evaluation task or a cryptography task. The execution unit may be configured to provide functional safety in association with executing the set of tasks. The execution unit includes a set of time-multiplexed partitions. Each partition in the set of time-multiplexed partitions may be configurable to execute only one task included in the set of tasks. The message processing component may include an interface to one or more hardware accelerators available for use in association with the execution of the set of tasks. Only one partition, of the set of time-multiplexed partitions, may have access to the one or more hardware accelerators at a time.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 13, 2022
    Inventors: Viola RIEGER, Uli KRETZSCHMAR
  • Publication number: 20210374290
    Abstract: A security hardware device is configured to secure a control apparatus. The security hardware device includes a data security domain; a functional safety domain; a data security processor provided in the data security domain and is configured to secure data from unauthorized access or manipulation; a functional safety processor provided in the functional safety domain and is configured to detect functional errors and generate respective safety alerts in response to detecting the functional errors; and a monitoring processor configured to analyze the respective safety alerts provided by the functional safety processor for at least one pattern of safety alerts indicative of a security attack and generate a response signal in response to the respective safety alerts having at least one of the at least one pattern of safety alerts.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Applicant: Infineon Technologies AG
    Inventors: Avni BILDHAIYA, Viola RIEGER, Frank HELLWIG, Alexander ZEH
  • Patent number: 10972268
    Abstract: A Cryptographic Unit (CU) of a microcontroller, the CU including a first accelerator configured to generate first encrypted output data based on input data; and a second accelerator which is configured to be diversely implemented with respect to the first accelerator, and is configured to generate second encrypted output data based on the input data; and a comparator configured to compare a first comparator data obtained from the generation of the first encrypted output data with a second comparator data obtained from the generation of the second encrypted output data, and if the comparison indicates that the first and second comparator data differ, output an event signal pertaining to an event in a safety domain or a security domain.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: April 6, 2021
    Assignee: Infineon Technologies AG
    Inventors: Alexander Zeh, Viola Rieger
  • Patent number: 10970399
    Abstract: A method for processing data in a plurality of processing acts includes: configuring a plurality of processing circuits in a first configuration, in such a way that both a first and a second of the plurality of processing circuits execute a first of the plurality of processing acts; and configuring the plurality of processing circuits in a second configuration, in such a way that the first processing circuit executes a second processing act and the second processing circuit executes a third processing act, which is different than the second processing act. An apparatus is designed for carrying out the method.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: April 6, 2021
    Assignee: Infineon Technologies AG
    Inventors: Alexander Zeh, Viola Rieger
  • Publication number: 20210067336
    Abstract: A device is provided comprising a first memory for storing a first key, a second memory for storing a second key, the device being capable of conducting a first cryptographic algorithm, wherein the first cryptographic algorithm uses the first key, the device being capable of conducting a second cryptographic algorithm, wherein the second cryptographic algorithm uses the second key, and a selection unit, which is programmable to use either the first cryptographic algorithm or the second cryptographic algorithm. Also, a method for operating such device is provided.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 4, 2021
    Inventors: Viola RIEGER, Alexander ZEH
  • Publication number: 20200143064
    Abstract: In different example embodiments, a system-on-chip is provided.
    Type: Application
    Filed: October 24, 2019
    Publication date: May 7, 2020
    Inventors: Albrecht Mayer, Reinhard Deml, Viola Rieger, Alexander Zeh
  • Publication number: 20200092098
    Abstract: A Cryptographic Unit (CU) of a microcontroller, the CU including a first accelerator configured to generate first encrypted output data based on input data; and a second accelerator which is configured to be diversely implemented with respect to the first accelerator, and is configured to generate second encrypted output data based on the input data; and a comparator configured to compare a first comparator data obtained from the generation of the first encrypted output data with a second comparator data obtained from the generation of the second encrypted output data, and if the comparison indicates that the first and second comparator data differ, output an event signal pertaining to an event in a safety domain or a security domain.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 19, 2020
    Inventors: Alexander Zeh, Viola Rieger
  • Publication number: 20190114430
    Abstract: A method for processing data in a plurality of processing acts includes: configuring a plurality of processing circuits in a first configuration, in such a way that both a first and a second of the plurality of processing circuits execute a first of the plurality of processing acts; and configuring the plurality of processing circuits in a second configuration, in such a way that the first processing circuit executes a second processing act and the second processing circuit executes a third processing act, which is different than the second processing act. An apparatus is designed for carrying out the method.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventors: Alexander Zeh, Viola Rieger
  • Publication number: 20190065787
    Abstract: The present disclosure relates to a security device, a system, and a method for securing a control apparatus. The security device includes a data security unit which is configured to secure data, data communication and information, and includes a first security component inside the data security unit to operate in a first operating mode, and at least one first monitoring unit to operate in a high-availability mode which, said first monitoring unit being configured to detect a fault present in the first security component. The high-availability mode is different from the first operating mode. The security device further includes a second security component which is configured to operate in the high-availability mode and to output a first response signal if a fault is detected by the first monitoring, where the high-availability mode is available independently from the first operating mode.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Applicant: Infineon Technologies AG
    Inventors: Avni BILDHAIYA, Viola RIEGER, Frank HELLWIG, Alexander ZEH