【発明の名称】電子回路の管理の方法と装置

Title:

【発明の名称】電子回路の管理の方法と装置

Document Type and Number:

Japanese Patent JP2003500721

Kind Code:

A

Abstract:

The invention proposes a method of managing an electronic circuit of the type comprising a memory (EEPROM) for the storage of confidential information, the method comprising masking variations of the electrical current (I) consumed by the electronic circuit, during a fraction of the time only (t_i-t_j), at least during the portion(s) of time during which an instruction bearing on confidential data is executed, and notably an instruction for reading out from the memory (EEPROM).

Inventors:

Widar Sylvie

Application Number:

JP2000620444A

Publication Date:

January 07, 2003

Filing Date:

May 18, 2000

Export Citation:

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Assignee:

STMicroelectronics Society Anonymous

International Classes:

G06F1/26; G06F12/14; G06F21/55; G06F21/77; G06K19/073; G11C7/24; G06F1/00; (IPC1-7): G06F12/14; G06F1/26; G06K19/073

Domestic Patent References:

JPS6435679A	1989-02-06
JPH02199561A	1990-08-07
JP2000196584A	2000-07-14
JP2003526134A	2003-09-02
JPH09146761A	1997-06-06

Foreign References:

US5500601A

1996-03-19

Attorney, Agent or Firm:

Takashi Koshiba

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