Patent ID: 11861021
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A digital artwork display device, comprising a registration circuit, a transaction circuit, and a file decryption circuit,
wherein the registration circuit is configured to apply for a device identifier and a device public-private key pair, and the device public-private key pair comprises a device public key and a device private key that is corresponding to the device public key;
the transaction circuit is configured to acquire a use license, and the use license comprises the device identifier and a content key ciphertext obtained by encrypting a content key by using the device public key; and
the file decryption circuit is configured to decrypt the content key ciphertext in the use license by using the device private key so as to obtain the content key, and decrypt an encrypted file that is obtained by using the content key so as to obtain an original file;
the device identifier is obtained by performing a hash operation with an international mobile equipment identity, a product serial number, or a media access control address, of the digital artwork display device.