Invention Grant
- Patent Title: Memory data protection based on authenticated encryption
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Application No.: US16045393Application Date: 2018-07-25
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Publication No.: US11269786B2Publication Date: 2022-03-08
- Inventor: Anatoli Bolotov , Mikhail Grinchuk , David M. Durham , Patrick Fleming
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Jordan IP Law, LLC
- Main IPC: G06F21/00
- IPC: G06F21/00 ; G06F12/14 ; G06F21/44 ; G06F21/78

Abstract:
Systems, apparatus, and/or methods to provide memory data protection. In one example, authenticated encryption may be enhanced via a modification to an authentication code that is associated with encrypted data. The authentication code may be modified, for example, with a nonce value generated for a particular write to memory Decrypted data, generated from the encrypted data, may then be validated based on a modified authentication code. Moreover, data freshness control for data stored in the memory may be provided based on iterative authentication and re-encryption. In addition, a counter used to provide a nonce value may be managed to reduce a size of the counter and/or a growth of the counter.
Public/Granted literature
- US20190050347A1 MEMORY DATA PROTECTION BASED ON AUTHENTICATED ENCRYPTION Public/Granted day:2019-02-14
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