PGP—Pretty Good Privacy，是一个基于RSA公匙加密体系的邮件加密软件。可以用它对你的邮件保密以防止非授权者阅读，它还能对你的邮件加上数字签名从而使收信人可以确信邮件是你发来的。它让你可以安全地和你从未见过的人们通讯，事先并不需要任何保密的渠道用来传递密匙。它采用了：审慎的密匙管理，一种RSA和传统加密的杂 ...
First of all we would like to thank God Almighty for giving us the strength and confidence in
pursing the ambitions. We would like to thank our Examiner Professor Axel Jantsch for
allowing us to do this under his guidance and encouragement. At the same time we would like
to mention our sincere thank ...
