In this net-savvy world, where more people and businesses are handling their transactions online. The need for privacy and security in the information exchanged becomes more and more crucial. By encrypting sensitive information before sending them through foreign networks ensures to a certain extent that your information is safe from prying eyes.

There are a few encrypting tools in the market which addresses such a need. Pretty Good Privacy (PGP) is one such tool. It was initially developed in Massachusetts Institute of Technology but now is taken over by Network Associates Inc. It is now the standard tool used for encrypting email today and it is used worldwide.

But the disadvantage of PGP and many other encryption tools is that the sender and recipient both need to have that software on their computers before they can exchange encrypted messages. This may not always be convenient or possible.

Hence, this project aims to address this problem, and make encryption of email messages more user-friendly and accessible to organizations.

It does this by allowing PGP to reside on the mail server. Trusted organizations are registered by a common certification authority and their public keys are stored in a global directory. All emails that are sent from a registered domain will automatically be signed and encrypted if the recipient’s organization is also a registered one. Therefore, system administrators would just need to register their domain with a certification authority for all computers under that domain to be able to send encrypted messages. The best part is that, the end user does not need to know anything about PGP or encryption to send secure information through the internet.

Additionally, with a global directory containing all the public keys of registered organizations, no distribution of public keys needs to be done, which can sometimes be inconvenient and hinder efficiency. This also makes it possible for someone to send an encrypted email to a person he has never made any contact with before.

This project will extend the advantages and usage of the PGP software to more people. Furthermore, it will also make email encryption more convenient and accessible to end-users.

• To ensure the privacy of emails that are sent through the internet
• To prevent any masquerading of identities through emails
• To achieve the above while keeping the process invisible from end-users