Intelligent terminal, receiving end and method for countersigning by using intelligent terminal
An intelligent terminal and receiver technology, applied in image data processing, security devices, transmission systems, etc., can solve the problems of single function, single type of watermark, weak timeliness, etc., and achieve the effect of simple transmission and strong versatility
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[0053] The present invention provides a method for countersigning by using an intelligent terminal, including;
[0054] Receive the signature of the countersigner, add the signature to the document to be signed; make a digital watermark, add the digital watermark to the document through a preset algorithm, and send the document to the countersign recipient;
[0055] After receiving the file, the countersign receiver extracts the digital watermark from the file, compares it with the locally pre-stored countersigner watermark information, and outputs a countersign result.
[0056] Wherein, the document to be signed can be obtained locally, or sent to the countersigner by the other party who countersigns.
[0057] Wherein, the method further includes: collecting information required for making the digital watermark, and the information includes one or a combination of the following: password, signature handwriting, sound information, image information or a combination thereof.
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