Secure Sockets Layer (SSL)

A brief introduction to SSL is presented here. Greater detail may be found in the various books on security and RFCs.

The SSL Protocol

SSL was originally developed by Netscape® and has been widely adopted for use on the Internet. The Internet Engineering Task Force created a new standard called Transport Layer Security (TLS) [RFC2246] based on SSL. TLS is used in HTTPS and WTLS.

The SSL protocol runs on top of TCP/IP but below higher-level protocols such as HTTP, Lightweight Directory Access Protocol (LDAP) [RFC2451], or Internet Mail Access Protocol (IMAP). SSL uses TCP/IP on behalf of the higher-level protocols. Some side effects of being between the high and low protocols are that SSL: allows an SSL-enabled server ...

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