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    Providing a Cryptographic Information
    1.
    发明公开
    Providing a Cryptographic Information 审中-公开

    公开(公告)号：US20240137225A1

    公开(公告)日：2024-04-25

    申请号：US18541533

    申请日：2023-12-15

    Applicant: Infineon Technologies AG

    Inventor： Thomas Poeppelmann

    IPC: H04L9/32 ,  H04L9/08 ,  H04L9/30

    CPC classification number: H04L9/3247 ,  H04L9/0894 ,  H04L9/3093 ,  H04L9/3218

    Abstract: Cryptographic information is compiled by: (a) determining a first portion of the cryptographic information based on an input and a randomness: (b) checking a rejection criterion based on the first portion; (b1) re-starting step (a) with a different randomness if the rejection criterion is fulfilled; (b2) if not all portions of the cryptographic information have been generated, determining a subsequent portion of the cryptographic information based on the input and the randomness and continuing with step (b) or, otherwise, continuing with step (c); (c) determining the first portion of the cryptographic information based on the input and the randomness; (d) conveying the respective portion of the cryptographic information; and (e) if not all portions of the cryptographic information have been generated, determining a subsequent portion of the cryptographic information based on the input and the randomness and continuing with step (d).

    Providing a cryptographic information
    2.
    发明授权
    Providing a cryptographic information 有权

    公开(公告)号：US11870911B2

    公开(公告)日：2024-01-09

    申请号：US17380634

    申请日：2021-07-20

    Applicant: Infineon Technologies AG

    Inventor： Thomas Poeppelmann

    IPC: H04L9/32 ,  H04L9/08 ,  H04L9/30 ,  G06F21/60 ,  G06F21/44 ,  G06F21/45

    CPC classification number: H04L9/3247 ,  H04L9/0894 ,  H04L9/3093 ,  H04L9/3218

    Abstract: Cryptographic information is compiled by: (a) determining a first portion of the cryptographic information based on an input and a randomness; (b) checking a rejection criterion based on the first portion; (b1) re-starting step (a) with a different randomness if the rejection criterion is fulfilled; (b2) if not all portions of the cryptographic information have been generated, determining a subsequent portion of the cryptographic information based on the input and the randomness and continuing with step (b) or, otherwise, continuing with step (c); (c) determining the first portion of the cryptographic information based on the input and the randomness; (d) conveying the respective portion of the cryptographic information; and (e) if not all portions of the cryptographic information have been generated, determining a subsequent portion of the cryptographic information based on the input and the randomness and continuing with step (d).

    STORAGE ELEMENT WITH CLOCK GATING
    3.
    发明申请
    STORAGE ELEMENT WITH CLOCK GATING 有权

    公开(公告)号：US20210143802A1

    公开(公告)日：2021-05-13

    申请号：US17070086

    申请日：2020-10-14

    Applicant: Infineon Technologies AG

    Inventor： Thomas Kuenemund ,  Thomas Poeppelmann

    IPC: H03K3/038 ,  H04L9/30 ,  H04L29/06 ,  H04L9/08 ,  H04L9/06

    Abstract: A storage element that is operable based on a system clock signal, the storage element including a clock gating circuitry configured to generate a gated clock signal based on at least one Boolean signal and the system clock signal or a preprocessed system clock signal, wherein the clock gating circuitry comprises physical connections of small capacitance such that tapping of at least one of the physical connections results in a hold-time violation. Also, a hardware-based cryptography accelerator or a secured processing system including at least one such storage element, and a method for operating at least one storage element.

    Apparatus and Method for Decrypting an Encrypted Bit Sequence
    5.
    发明公开
    Apparatus and Method for Decrypting an Encrypted Bit Sequence 审中-公开

    公开(公告)号：US20230171103A1

    公开(公告)日：2023-06-01

    申请号：US17991468

    申请日：2022-11-21

    Applicant: Infineon Technologies AG

    Inventor： Thomas Poeppelmann ,  Peter PeßL ,  Daniel Heinz ,  Julius Hermelink

    IPC: H04L9/30

    CPC classification number: H04L9/3093

    Abstract: An apparatus for decrypting an encrypted bit sequence comprises a test device configured to subject the bit sequence to a statistical test in view of an expected distribution of the bits in the bit sequence in order to obtain a test result. The apparatus is configured to decrypt the bit sequence should the test result indicate that the distribution follows the expected distribution, and to not decrypt the bit sequence should the test result indicate that the distribution does not follow the expected distribution.

    DEVICES AND METHODS FOR AUTHENTICATION
    7.
    发明申请
    DEVICES AND METHODS FOR AUTHENTICATION 有权

    公开(公告)号：US20210273939A1

    公开(公告)日：2021-09-02

    申请号：US17186450

    申请日：2021-02-26

    Applicant: Infineon Technologies AG

    Inventor： Thomas Poeppelmann

    IPC: H04L29/06 ,  H04L9/32

    Abstract: A device comprises a receive device which is designed to receive a data packet from a communication partner. The device comprises a data processing device which is configured to process the data packet in order to obtain a secret (e.g. predetermined) value. The device further comprises a transmit device which is designed to transmit a transmit message comprising information based on the secret value to the communication partner. The device further comprises an authentication device which is designed to receive a challenge message and to use the secret value to create a response message. The transmit device is designed to create the transmit message in such a way that it comprises the response message.

    Cryptographic operation
    8.
    发明授权
    Cryptographic operation 有权

    公开(公告)号：US11627002B2

    公开(公告)日：2023-04-11

    申请号：US17316146

    申请日：2021-05-10

    Applicant: Infineon Technologies AG

    Inventor： Thomas Poeppelmann ,  Rainer Urian

    IPC: H04L29/06 ,  G06F21/00 ,  H04L9/32 ,  H04L9/08 ,  H04L9/30

    Abstract: A method is suggested for providing a response, wherein the method comprises: obtaining a challenge from a host, determining the response based on the challenge, determining an auxiliary value based on the response or the challenge, providing the auxiliary value to the host, obtaining a random value from the host, checking the validity of the challenge based on the random value, and providing the response to the host only if the challenge is valid. Also, according methods running on the host and system are provided. Further, corresponding devices, hosts and systems are suggested.

    Storage element with clock gating
    9.
    发明授权
    Storage element with clock gating 有权

    公开(公告)号：US11463074B2

    公开(公告)日：2022-10-04

    申请号：US17070086

    申请日：2020-10-14

    Applicant: Infineon Technologies AG

    Inventor： Thomas Kuenemund ,  Thomas Poeppelmann

    IPC: H04L9/30 ,  H04L9/40 ,  G09C1/00 ,  H03K3/012 ,  H04L9/00 ,  H04L9/14 ,  H03K3/3562 ,  H04L9/06 ,  H04L9/08 ,  H03K3/038

    Abstract: A storage element that is operable based on a system clock signal, the storage element including a clock gating circuitry configured to generate a gated clock signal based on at least one Boolean signal and the system clock signal or a preprocessed system clock signal, wherein the clock gating circuitry comprises physical connections of small capacitance such that tapping of at least one of the physical connections results in a hold-time violation. Also, a hardware-based cryptography accelerator or a secured processing system including at least one such storage element, and a method for operating at least one storage element.

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