Many organizations use e-mail as a method of communication between employees and external customers. By default, Internet e-mail is sent without any encryption, exposing the e-mail content to any users that are able to capture the packets as they traverse the network.
This chapter looks at the public key infrastructure (PKI) requirements for protecting e-mail with cryptographic measures.
Two different methods can be implemented to secure e-mail:
Securing the content of e-mail messages. The content of e-mail messages is secured by implementing Secure/Multipurpose Internet Mail Extensions (S/MIME).
The design ...