Circuit arrangement with non-volatile memory module and method for registering attacks on said non-volatile memory module

A non-volatile storage and circuit layout technology, which is applied in the fields of electrical digital data processing, platform integrity maintenance, encoding/decoding devices, etc., can solve problems such as the inability to accurately predict the time point of the second flash

Inactive Publication Date: 2008-08-13
NXP BV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the attacker will have to use two flashes to manipulate the query, and will also ru

Method used

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  • Circuit arrangement with non-volatile memory module and method for registering attacks on said non-volatile memory module

Examples

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Embodiment Construction

[0052] A specific data processing device, that is, an embodiment of an embedded system in the form of a chip card or a smart card that includes an integrated circuit (IC) that can perform cryptographic operations, can refer to the public key system (PKI) system, which The method proposed according to the invention works, ie is protected by a protection arrangement 100 (see FIG. 1 ) against abuse and / or against manipulation.

[0053] This embodiment of a circuit arrangement 100 for electronic data processing is provided for a microcontroller of the embedded security controller type. The circuit arrangement 100 contains a multicomponent non-volatile memory module 10 (so-called non-volatile (NV) memory) in the form of an electrically erasable programmable read-only memory (EEPROM) and can be accessed via This module stores data.

[0054] Associated with this non-volatile (NV) memory module 10 is an interface logic 20 through which,

[0055] - the memory module 10 can be address...

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Abstract

In order to further develop a circuit arrangement ( 100 ), in particular an integrated circuit, for electronic data processing as well as a method for detecting and/or for registering and/or for signaling the irradiation of at least one non-volatile memory module ( 10 ) with at least one light source in order to be capable of securely averting an attack, in particular an E[lectro]M[agnetic] radiation attack, for example a side-channel attack, or in particular a crypto-analysis, for example a current trace analysis or a D[ifferential]P[ower]A[nalysis], such attack or such analysis in particular being targeted on finding out a private key, it is proposed that an access timing for at least one read access to the memory module ( 10 ) is generated, in particular that at least one additional read access to the memory module ( 10 ) is added in at least one test mode (T), in particular in at least one D[isable]A[ll]W[ordline] mode, this test mode (T) preferably allowing to detect if the memory module ( 10 ) is currently exposed to any light of a certain energy.

Description

technical field [0001] Generally speaking, the present invention relates to the technical field of preventing cryptanalysis, in particular protecting at least one data processing device, in particular at least one embedded system, such as at least one chip card or smart card, against at least one attack, in particular Resist at least one electromagnetic (EM) radiation attack, such as at least one side-channel attack, or in particular at least one crypto-analysis, such as at least one current trace analysis (current trace analysis) or resist at least one differential power analysis (DPA). [0002] More specifically, the invention relates to a circuit arrangement, in particular an integrated circuit, for electronic data processing, which circuit arrangement comprises the features of the preamble of claim 1 (see prior art document WO 2004 / 049349 A2). [0003] The invention also relates to a method for detecting and / or registering and / or signaling illumination of at least one non...

Claims

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Application Information

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IPC IPC(8): G06F21/00G06F21/55G06F21/75G06F21/79
CPCG06F21/558G06F21/75G06F21/79G06F21/755G06F21/00G09C1/00
Inventor 沃尔夫冈·布尔
Owner NXP BV
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