Invention Grant
- Patent Title: Apparatus and method for obfuscating power consumption of a processor
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Application No.: US15185789Application Date: 2016-06-17
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Publication No.: US10255462B2Publication Date: 2019-04-09
- Inventor: Bal S. Sandhu , George McNeil Lattimore , Carl Wayne Vineyard
- Applicant: ARM Limited
- Applicant Address: GB Cambridge
- Assignee: ARM Limited
- Current Assignee: ARM Limited
- Current Assignee Address: GB Cambridge
- Agency: Pramudji Law Group PLLC
- Agent Ari Pramudji
- Main IPC: H04L29/06
- IPC: H04L29/06 ; G06F21/75 ; H04L9/00 ; G09C1/00

Abstract:
An apparatus for obfuscating power consumption associated with one or more operations of a logic circuitry of a processor. The apparatus comprises counterbalance circuitry configured to provide a second power consumption to directly counterbalance the power consumption associated with the one or more operations of the logic circuitry. The second power consumption varies inversely with the power consumption associated with the one or more operations of the logic circuitry. The apparatus further comprises header circuitry configured to enable a common node to vary in voltage corresponding to the one or more operations of the logic circuitry. The counterbalance circuitry and the header circuitry are each coupled to the logic circuitry at the common node.
Public/Granted literature
- US20170364710A1 Apparatus and Method for Obfuscating Power Consumption of a Processor Public/Granted day:2017-12-21
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