【摘要】 分析了电子保证邮件的安全要求，并说明传统的基于同时秘密传送的协议不能适用于当前的电子邮件系统，接着提出了一个基于可信第三方的电子保证邮件协议。最后，对该协议进行了简要的安全分析，证明它能够满足这些安全要求。更多还原

【Abstract】 In this paper, we analyze the security requirements of certified electronic mail and show that the traditional protocols based on simultaneous secret exchange are not suitable in the electronic mailing system at present, then we present a protocol based on the participation of a trusted third party. Finally, we give a simple security analysis of the protocol to show that it fulfils these requirements.更多还原