Difference between revisions of "Secure Multipurpose Internet Mail Extensions"

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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).   
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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).  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.  S/MIME requires the use of a dedicated email client, and the installation of a security key, or certificate from a Certificate Authority (CA).   
  
== History ==
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S/MIME does have several practical limitations. It is not optimized for web-based mail applications.  Third-parties cannot scan the encrypted messages for malware, this requires analysis of the decrypted file.
 
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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.
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== Functionality ==
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S/MIME requires the use of a dedicated email client, and the installation of a security key, or certificate from a Certificate Authority (CA).
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Revision as of 03:29, 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). 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. S/MIME requires the use of a dedicated email client, and the installation of a security key, or certificate from a Certificate Authority (CA).

S/MIME does have several practical limitations. It is not optimized for web-based mail applications. Third-parties cannot scan the encrypted messages for malware, this requires analysis of the decrypted file.