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1. (WO2018205512) INFORMATION ENCRYPTION AND DECRYPTION METHOD, SET-TOP BOX, SYSTEM, AND STORAGE MEDIUM

Pub. No.:    WO/2018/205512    International Application No.:    PCT/CN2017/109080
Publication Date: Fri Nov 16 00:59:59 CET 2018 International Filing Date: Fri Nov 03 00:59:59 CET 2017
IPC: H04N 21/41
H04N 21/426
H04N 21/4627
Applicants: SHENZHEN SKYWORTH DIGITAL TECHNOLOGY CO., LTD
深圳创维数字技术有限公司
Inventors: HONG, Desheng
洪德胜
Title: INFORMATION ENCRYPTION AND DECRYPTION METHOD, SET-TOP BOX, SYSTEM, AND STORAGE MEDIUM
Abstract:
Embodiments of the present invention relate to the technical field of computers. Disclosed are an information encryption and decryption method, a set-top box, a system, and a storage medium. The set-top box comprises a programmable logic device (PLD) chip. The method comprises: obtaining original information, the original information being information obtained by a set-top box from a received digital signal; performing an encryption operation on the original information using a PLD chip to obtain target information; and storing the target information to the set-top box after obtaining the target information. By means of the embodiments of the present invention, on one hand, the burden of a CPU can be effectively reduced, and the efficiency of the encryption operation is improved; on the other hand, the information is processed by the PLD chip, the portability of a system can be increased.