SureDelivery crypto system

Abstract

Spam is becoming an increasing large problem nowadays. It is annoying and inconvenient or even worse in many cases. This project presents the design and implementation of a novel solution to the problem. Based on statistics, most spam is from those untrusting parties to legitimate email servers. To eliminate spam in this respect, the key idea for this project considers eliminating email spoofing. Spam can be eliminated significantly if all the emails are authenticated. My approach applies cryptographic tools : ID-Based Signature Scheme, to authenticate email before it reaches the user inbox. Moreover, in case, spammer is a legitimate user, Email Quota is proposed to prevent spammer sends email as legitimate user called inside attack. The proposed solution is designed on top of the existing anti-spam technologies that unauthorized messages are eliminated. Existing anti-spam technologies can still be applied to further improve the performance. The implementation is a complete email system including: Email Client, Email Server and Key Management Server which ensures the security of the authentication process. Feasibility and practical issues are also demonstrated in the system architecture.