Invention Grant
- Patent Title: Providing access to a hardware resource based on a canary value
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Application No.: US16722407Application Date: 2019-12-20
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Publication No.: US10999057B2Publication Date: 2021-05-04
- Inventor: Michael A. Hamburg , Megan Anneke Wachs
- Applicant: Cryptography Research, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Cryptography Research, Inc.
- Current Assignee: Cryptography Research, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Lowenstein Sandler LLP
- Main IPC: G06F21/00
- IPC: G06F21/00 ; H04L9/00 ; G06F21/44 ; G06F21/64 ; G06F21/51 ; H04L9/32

Abstract:
A container corresponding to executable code may be received. In response receiving the container, an assertion value may be stored in an assertion register. A final canary value may be generated based on a cycles combining a prior canary value and a mix value. A determination may be made as to whether the final canary value matches with the assertion value stored in the assertion register. In response to determining that the final canary value matches with the assertion value, one or more privilege registers may be programmed to provide access to hardware resources for the container corresponding to the executable user code.
Public/Granted literature
- US20200220709A1 PROVIDING ACCESS TO A HARDWARE RESOURCE BASED ON A CANARY VALUE Public/Granted day:2020-07-09
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