!!! Overview [1] [2] [3]
[{$pagename}] (same as [Forward Secrecy]) is a property of [Secure connection] [communication] [protocols] ([Key agreements]) that gives [assurances] the, typically short lived, [Session Keys] __will not__ be compromised even if the long term [Private Key] are compromised.

In modern [cryptographic] communication typically the problem to solve is that the [Private Key] is used for two purposes:[1]
* [authentication] of the server 
* [encryption] of a shared secret. 
[Authentication] only matters while the communication is established, but the [encryption] is expected to last for years.

The [Session Key] is typically a [Shared Secret] that is shared using a [Key agreement] within an [Key-Exchange]. 

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [SSL/TLS & Perfect Forward Secrecy|http://vincent.bernat.im/en/blog/2011-ssl-perfect-forward-secrecy.html|target='_blank'] - based on information obtained 2013-04-10
* [#2] - [Perfect Forward Secrecy|https://www.perfectforwardsecrecy.com/|target='_blank'] - based on information obtained 2018-09-30
* [#3] - [Forward_secrecy|Wikipedia:Forward_secrecy|target='_blank'] - based on information obtained 2018-09-30-