中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

34 records (took 0.017 seconds)

    Enhancements to improve side channel resistance
    23.
    发明授权
    Enhancements to improve side channel resistance 有权

    公开(公告)号：US10789358B2

    公开(公告)日：2020-09-29

    申请号：US16061409

    申请日：2016-10-12

    Applicant: CRYPTOGRAPHY RESEARCH, INC.

    Inventor： Sami Saab ,  Elke De Mulder ,  Pankaj Rohatgi ,  Craig E Hampel ,  Jeremy Cooper ,  Winthrop Wu

    IPC: G06F21/55 ,  G06F21/62

    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.

    Enhancements to improve side channel resistance
    26.
    发明授权
    Enhancements to improve side channel resistance 有权

    公开(公告)号：US11507659B2

    公开(公告)日：2022-11-22

    申请号：US17033568

    申请日：2020-09-25

    Applicant: CRYPTOGRAPHY RESEARCH, INC.

    Inventor： Sami Saab ,  Elke De Mulder ,  Pankaj Rohatgi ,  Craig E. Hampel ,  Jeremy Cooper ,  Winthrop Wu

    IPC: G06F21/55 ,  G06F21/62

    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.

    Programmable block cipher with masked inputs
    27.
    发明授权
    Programmable block cipher with masked inputs 有权

    公开(公告)号：US11463236B2

    公开(公告)日：2022-10-04

    申请号：US16466983

    申请日：2017-12-04

    Applicant: CRYPTOGRAPHY RESEARCH, INC.

    Inventor： Rodrigo Portella do Canto ,  Elke De Mulder ,  Pankaj Rohatgi ,  Matthew Pond Baker

    IPC: H04L9/06

    Abstract: An indication of a mode of operation to be performed with a block cipher may be received. Logic associated with the block cipher may be configured based on the indicated mode of operation to be performed with the block cipher. Furthermore, an input data and a mask data may be received. The input data may be combined with the mask data to generate a masked input data based on the configured logic. The masked input data may be provided to the block cipher based on the configured logic and an output data may be generated with the block cipher based on the provided masked input data.

    SECURITY CHIP WITH RESISTANCE TO EXTERNAL MONITORING ATTACKS
    28.
    发明申请
    SECURITY CHIP WITH RESISTANCE TO EXTERNAL MONITORING ATTACKS 有权

    公开(公告)号：US20220083665A1

    公开(公告)日：2022-03-17

    申请号：US17382333

    申请日：2021-07-21

    Applicant: Cryptography Research, Inc.

    Inventor： Paul C. Kocher ,  Pankaj Rohatgi ,  Joshua M. Jaffe

    IPC: G06F21/57 ,  G06F21/60 ,  H04L9/08 ,  H04L9/32 ,  G06F21/55 ,  H04L9/00 ,  G06F12/14 ,  H04L9/06 ,  H04L9/16 ,  G06F9/445 ,  G06F21/76 ,  G06F8/71

    Abstract: A computing device includes a secure storage hardware to store a secret value and processing hardware comprising at least one of a cache or a memory. During a secure boot process the processing hardware loads untrusted data into at least one of the cache or the memory of the processing hardware, the untrusted data comprising an encrypted data segment and a validator, retrieves the secret value from the secure storage hardware, derives an initial key based at least in part on an identifier associated with the encrypted data segment and the secret value, verifies, using the validator, whether the encrypted data segment has been modified, and decrypts the encrypted data segment using a first decryption key derived from the initial key to produce a decrypted data segment responsive to verifying that the encrypted data segment has not been modified.

    ENHANCEMENTS TO IMPROVE SIDE CHANNEL RESISTANCE
    30.
    发明申请
    ENHANCEMENTS TO IMPROVE SIDE CHANNEL RESISTANCE 审中-公开

    公开(公告)号：US20200175162A1

    公开(公告)日：2020-06-04

    申请号：US16061409

    申请日：2016-10-12

    Applicant: CRYPTOGRAPHY RESEARCH, INC.

    Inventor： Sami James Saab ,  Elke De Mulder ,  Pankaj Rohatgi ,  Craig E. Hampel ,  Jeremy Cooper ,  Winthrop Wu

    IPC: G06F21/55 ,  G06F21/62

    Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.

Patent Agency Ranking