!!! Overview
S/MIME ([{$pagename}]) is __secure__ [Multipurpose Internet Mail Extensions] ([MIME])* [IETF] Standard for "secure electronic mail"
* [Digital Signatures]
** Need canonical form of message to be signed
* [Encryption]
* Other information for recipient
** [Certificates] for verification
** Sender's public encryption key ([certificate])
** Sender's [Cryptographic] [algorithms]

!! [Example] S/MIME (Signed)
%%prettify 
{{{
From: Eric Norman <ejnorman@doit.wisc.edu>
MIME-version: 1.0
Content-type: multipart/signed; protocol="application/pkcs7-signature";
boundary=Apple-Mail-3-2162327; micalg=sha1
--Apple-Mail-3-2162327
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII; format=flowed
Message text
--Apple-Mail-3-2162327
Content-Transfer-Encoding: base64
Content-Type: application/pkcs7-signature; name=smime.p7s
Content-Disposition: attachment; filename=smime.p7s
MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIGQzCCAsMw
ggIsoAMCAQICAgMzMA0GCSqGSIb3DQEBBAUAMIG3MQswCQYDVQQGEwJVUzESMBAGA1UECBMJV2lz
... snip ...
icLcyxUobN5sT+ttMbm1S6Q+6wAAAAAAAA==
--Apple-Mail-3-2162327--
}}} /%!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]