Chip authorization encryption and decryption method and system

• Main Author: JIANG YOUHAI
• Format: Patent
• Language: Chinese; English
• Published: 20.12.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a chip authorization encryption method, which can encrypt a chip of an integrated circuit with a processing function, and comprises the following steps that: a chip encryptionend acquires a ciphertext through a first set encryption algorithm according to chip identification information and private key information; and the chip encryption end stores the chip identificationinformation, the ciphertext and the public key information in the chip, so that the chip is authorized. Meanwhile, the invention further discloses a chip authorization decryption method and a chip authorization encryption and decryption system. The completely offline authorization scheme of the method is suitable for completing the authorization service when the memory resources of the chip are inshortage; from a deeper level, unnecessary resource waste caused by adding a BT/WIFI module in order to authorize the addition of an IOT protocol when a chip is fused with other modules can be avoided. According to the scheme,