此外，现有的技术还无法做到对数字印章和签名的唯一性，保密性进行准确无误的认定。
In addition, the existing technology is unable to do so on the number of seal and signature only, and to the confidentiality of the identification accuracy.
数字签名是认证系统的主要内容，它解决了如何远距离地、迅速地用电子签名代替传统的手写签名和印章的问题。
The main content of authentication system is digital signature, which is a legal replacement for handwritten signature and seal and is used to sign files.
基于数字签名和数字水印技术，提出了一种基于身份的电子印章系统。
Based on digital signature and digital watermark, an ID - Based electronic seal system is proposed in this paper.
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