Memorizer as well as detecting method thereof and chip

Abstract

The embodiment of the invention discloses a memorizer as well as a detecting method thereof and a chip. The memorizer comprises a substrate, a laser detection circuit located on the substrate as well as a data circuit area and a data storage area located on the substrate; the laser detection circuit at least comprises a plurality of monitoring diodes, at least one recharge transistor and at least one amplifier unit, the input end of each amplifier unit is electrically connected with the negative electrode of at least one monitoring diode and the output end of each recharge transistor respectively, the positive electrodes of the monitoring diodes are grounded, and the input end of each recharge transistor is electrically connected with a power supply; the data circuit area is provided with a plurality of sensitive circuits, the data storage area is provided with a storage array, each sensitive circuit is arranged adjacent to at least one monitoring diode, and/or the storage array is arranged adjacent to at least one monitoring diode. The memorizer provided by the embodiment of the invention is low in production cost, is capable of effectively improving the accuracy of laser detection and avoiding miss detection.

Description

technical field [0001] The embodiments of the present invention relate to memory technology, and in particular to a memory, a detection method thereof, and a chip integrated with the memory. Background technique [0002] In the field of information security applications, security chips based on specific cryptographic algorithms need to provide information security protection for internal sensitive information and protect the confidentiality and integrity of information. Due to the importance of its internal information, the security chip will also be attacked in various forms, and is facing serious security challenges. [0003] At present, it is a common method for hackers to crack chips by using exception injection attack means to obtain keys, and one of the effective exception injection attack means is laser fault injection attack means. The basic principle of the laser fault injection attack method to attack the chip is the internal photoelectric effect. The laser is usu...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a memory, its detection method, and a chip to solve the problems of low detection accuracy and high production cost of laser detectors integrated in existing chips

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