Invention Grant
- Patent Title: Method and system for constant time cryptography using a co-processor
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Application No.: US14529238Application Date: 2014-10-31
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Publication No.: US10243727B2Publication Date: 2019-03-26
- Inventor: Winthrop Wu , James Goodman , Martin Kiernicki , Yoichi Shimokawa , William Thomas Morrison , Creighton Eldridge , David Kaplan
- Applicant: ATI Technologies ULC , Advanced Micro Devices, Inc.
- Applicant Address: CA Markham, Ontario US CA Santa Clara
- Assignee: ATI Technologies ULC,Advanced Micro Devices, Inc.
- Current Assignee: ATI Technologies ULC,Advanced Micro Devices, Inc.
- Current Assignee Address: CA Markham, Ontario US CA Santa Clara
- Agency: Faegre Baker Daniels LLP
- Main IPC: H04K1/00
- IPC: H04K1/00 ; H04L9/00 ; G09C1/00 ; H04L9/06 ; H04L9/30

Abstract:
The present disclosure presents methods, apparatuses, and systems to bolster communication security, and more particularly to utilize a constant time cryptographic co-processor engine for such communication security. For example, the disclosure includes a method for secure communication, comprising receiving encrypted data at a receiving device; obtaining a randomization for at least one bit of the encrypted data; modifying an execution of a cryptographic algorithm on the at least one bit to obtain a randomized cryptographic algorithm based on the randomization; and executing the randomized cryptographic algorithm on the at least one bit of encrypted data to recover original data associated with the encrypted data.
Public/Granted literature
- US20160352509A1 METHOD AND SYSTEM FOR CONSTANT TIME CRYPTOGRAPHY USING A CO-PROCESSOR Public/Granted day:2016-12-01
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