Invention Grant
- Patent Title: Integrity protected access control mechanisms
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Application No.: US17134351Application Date: 2020-12-26
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Publication No.: US12126706B2Publication Date: 2024-10-22
- Inventor: Siddhartha Chhabra , John Sell
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: NICHOLSON DE VOS WEBSTER & ELLIOTT LLP
- Main IPC: G06F21/78
- IPC: G06F21/78 ; G06F21/60 ; H04L9/00 ; H04L9/06 ; H04L9/32

Abstract:
Detailed herein are embodiments which allow for integrity protected access control to provide defense against deterministic software attacks. Software attacks such as rowhammer attacks which target the TD bit itself are defended against using cryptographic integrity which the data itself is protected by the TD-bit alone. As such, software is reduced to performing only non-deterministic attacks (e.g., random corruption), but all the deterministic attacks are defended against. Additionally, integrity-protected access control bits are protected against simple hardware attacks where the adversary with physical access to the machine can flip TD bits to get ciphertext access in software which can break confidentiality.
Public/Granted literature
- US20220209933A1 INTEGRITY PROTECTED ACCESS CONTROL MECHANISMS Public/Granted day:2022-06-30
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