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1. (WO2018098879) METHOD AND DEVICE FOR ENCRYPTING DIGITAL WATERMARK

Pub. No.:    WO/2018/098879    International Application No.:    PCT/CN2016/112858
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Fri Dec 30 00:59:59 CET 2016
IPC: G06T 1/00
Applicants: SHENZHEN TCL DIGITAL TECHNOLOGY LTD.
深圳TCL数字技术有限公司
Inventors: JIANG, Ting
江亭
Title: METHOD AND DEVICE FOR ENCRYPTING DIGITAL WATERMARK
Abstract:
A method for encrypting digital watermark, the method comprising the following steps: adding a preset identification character to a digital watermark, so as to perform identification processing on the digital watermark, the digital watermark being in a first numbering system format (S10); performing a second numbering system format transformation on the identification-processed digital watermark, to generate a first character string in a second numbering system format corresponding to the digital watermark (S20); and extracting, in sequence, each character in the first character string according to a preset order, and according to the extracted character each time, processing correspondingly, in sequence, a node in a to-be-encrypted file corresponding to the extracted character to generate an encrypted file corresponding to the to-be-encrypted file, the to-be-encrypted file comprising a plurality of nodes (S30). Further disclosed is a device for encrypting digital watermark, which improves the reliability of digital watermark encryption.