Invention Grant
- Patent Title: Method for scrambling the current consumption of an integrated circuit
- Patent Title (中): 用于扰乱集成电路的电流消耗的方法
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Application No.: US10388324Application Date: 2003-03-12
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Publication No.: US08296576B2Publication Date: 2012-10-23
- Inventor: Sylvie Wuidart
- Applicant: Sylvie Wuidart
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics SA
- Current Assignee: STMicroelectronics SA
- Current Assignee Address: FR Montrouge
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Priority: FR0011696 20000914
- Main IPC: G06F11/30
- IPC: G06F11/30 ; G06F12/14 ; G06F1/26 ; G06F11/00 ; G08B13/00 ; G08B21/00 ; G08B29/00
Abstract:
A method for scrambling current consumption of an integrated circuit, at least during execution of a confidential operation by the integrated circuit that includes reading confidential data stored therein and/or the calculation of an encryption code is provided. The charge pump is activated to generate current consumption fluctuations on the electrical power supply line of the integrated circuit, at an intensity great enough to mask the current consumption variations associated with the execution of the confidential operation.
Public/Granted literature
- US20030219126A1 Method for scrambling the current consumption of an integrated circuit Public/Granted day:2003-11-27
Information query
