Internet of things information security chip

Abstract

The invention discloses an Internet of Things information security chip, comprising a central processing unit, a dynamic memory, a flash memory, an SM2 encryption algorithm unit, an SM3 encryption algorithm unit, an SM4 encryption algorithm unit, an AES encryption algorithm unit, a true random Number generator, physical unclonable function circuit, I2C interface, UART interface, SPI interface, I / O port, JTAG interface and timer; true random number generator is used to generate true random numbers, and physical unclonable function circuit is used for chip authentication and key generation, when the key needs to be used, the true random number generated by the true random number generator is input to the physical unclonable function circuit through the on-chip bus, and the physical unclonable function circuit outputs a unique response sequence, the response sequence is key. The encryption and decryption operation speed of the invention is faster, the consumption of hardware resources and power consumption is less, the key cannot be copied and stolen, and the security and anti-counterfeiting level is higher.

Description

technical field [0001] The invention relates to the field of information security, in particular to an information security chip for the Internet of Things. Background technique [0002] Today is the era of rapid development of information technology, the Internet is rapidly becoming the carrier of all walks of life, promoting the progress of the industry, and the Internet of Things, as the basic medium and pioneer of Internet applications, greatly improves the efficiency of industry production and people's lives. Its application is called the third wave of the development of the world's information industry after computers and the Internet. At the same time, the security issue of the Internet of Things has also attracted people's attention. [0003] In order to ensure information security, the State Cryptography Administration of my country proposed the SM2 elliptic curve public key cryptography algorithm, the SM3 cryptographic hash algorithm and the SM4 block cipher algor...

AI Technical Summary

Problems solved by technology

However, some products in the current market use software encryption, resulting in slow data encryption and long cycle times. At the same time, some products are encrypted entirely by hardware. Although the speed is fast, the chip area is large and the power consumption is high, which cannot meet the requirements Low Power Requirements for Networked Products

At the same time, almost most of the products on the market store the key in non-volatile memory, which is vulnerable to intrusive attacks, resulting in the key being copied and stolen

These problems seriously restrict the popularization and development of the Internet of Things, and bring great security risks to the products of the Internet of Things.

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