Difference between revisions of "Secure Multipurpose Internet Mail Extensions"
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Revision as of 03:25, 18 November 2015
Secure/Multipurpose Internet Mail Extensions (or S/MIME) is a protocol for sending messages that are encrypted and digitally signed. S/MIME provides for cryptographic security services such as authentication, message integrity, and non-repudiation of origin (using digital signatures).
History
The first version of S/MIME was developed in 1995 by a number of security vendors. It was one of several specifications for message security. Other distinct security applications included Pretty Good Privacy. Over the following five years, S/MIME was adopted as the standard for message security.
Functionality
S/MIME requires the use of a dedicated email client, and the installation of a security key, or certificate from a Certificate Authority (CA).
