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Tencent public patent

November 16, 2021
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Tencent Technology (Shenzhen) Co., Ltd. recently published an invention patent for “Blockchain-based printing methods, devices, computer equipment and storage media”. The application number is CN202010344593.9, and the application publication number is CN113642009A.

Skyeye Check App displays. The method described in this patent includes obtaining a print request message initiated by a terminal through a printer node in a blockchain network;

According to the print request message, obtain the ciphertext to be printed from the blockchain network;

Among them, the ciphertext is encrypted using a random encryption method to the plaintext. The plaintext is uploaded to the blockchain network by the terminal. And the encryption method identifier corresponding to the encryption method is fed back to the terminal;

Obtain the input encryption method ID;

Use the decryption method that matches the encryption method identifier to decrypt the ciphertext and print it. Using this method can improve the security of data in the printing process.

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