【摘要】 为了满足电子交易中电子文档的可用性、安全性、权威性,提出了一种基于IBE(Identity Based Encryp-tion)技术和数字水印技术的电子印章解决方案。该方案使用IBE技术分配成对的密钥完成水印的嵌入和提取验证。在保证与基于PKI(Public Key Infrastructure)技术的印章系统具有等同安全强度的同时,具有降低成本、提高效率的优点。更多还原

【Abstract】 To implement the useableness,authority and security management of digital documents,we introduces a scheme of electronic seal based on IBE(Identity Based Encryption) and digital watermark.The keys allotted in pairs by IBE decides the embedding and extracting processes of the watermarking.The scheme can ensure the same security as PKI(Public Key Infrastructure).At the same time,it can reduce the cost and improve efficiency.更多还原