In this paper,we describe the principle of di gital signature. The strategy for data auto uploading based on digital signature is discussed and the real example about bookmark auto uploading are given in det ail.

• 介 绍了数字签名的基本原理，详细讨论了利用数字签名技术进行数据自动上载的实现策略，并 给出了基于数字签名技术实现的Bookmark（书签）自动上载实例。