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Safety detection method and device

A security detection and security technology, which is applied in electrical digital data processing, instruments, protection of internal/peripheral computer components, etc., can solve problems such as inapplicability to integrated circuit systems, and achieve the effect of security detection

Active Publication Date: 2017-11-17
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0005] However, the inventor has found through research that the above-mentioned various detection methods are not suitable for integrated circuit systems with a bus structure, so there is an urgent need for a safety detection method that can detect operation behavior on the bus, wherein the integrated circuit system with a bus structure is set in An integrated circuit system on a bus structure through which all integrated circuit systems can communicate

Method used

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Embodiment Construction

[0045] In order to enable those skilled in the art to better understand the embodiment of the present invention, firstly, the bus-based communication process between the master and the slave is described, and the threats existing in the communication process are pointed out accordingly:

[0046] Objects based on bus communication in the bus are divided into master and slave. The master can have control of the bus and initiate read and write operations on the slave. The slave can only respond to the operations initiated by the master. If the slave wants the master to operate it, Only notify the host through non-bus behaviors such as interrupts, and wait for the host to respond.

[0047] Among them, a common communication process between the master and the slave is as follows: figure 1 As shown, the host first initiates a bus request (hreq), and the arbiter judges whether to grant the bus control authority to the host at this time. The arbiter judges whether the host has obtain...

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Abstract

The invention provides a safety detection method and device. At least one safety detection strategy is made in advance; a safety detection strategy corresponding to current safety requirements can be acquired during safety detection; operation behaviors on a bus can be collected; then safety detection is conducted to the operation behaviors based on the safety detection strategy, and a first detection result corresponding to the safety detection strategy can be achieved; and all first detection results corresponding to the safety detection strategies are collected to achieve a second detection result for the operation behaviors. The operation behaviors are processing behaviors for indicating an integrated circuit system based on bus communication, so safety strategies-based safety detection to the operation behaviors is safety detection to the processing behaviors of the integrated circuit system; and the technical scheme realizes safety detection to the integrated circuit system of a bus structure.

Description

technical field [0001] The invention belongs to the technical field of bus behavior detection, and more specifically, relates to a safety detection method and device. Background technique [0002] At present, society's dependence on information has reached a very high level, and information security has become a key issue related to politics, economy, military affairs and daily life. In terms of information security, the security of the hardware structure and the security of the operating system are the basis of information security, and technologies such as cryptography and network security technology are the key technologies of information security. Correspondingly, in terms of hardware structure, there are many attack methods, including: destructive physical attacks, non-invasive side-channel attacks, and intrusive attacks. [0003] For destructive physical attacks, a sensor detection circuit can be added to the integrated circuit system. When the sensor detection circui...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/71
CPCG06F21/71G06F2221/2113
Inventor 李莹陈锐陈岚
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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