!!! Overview
[{$pagename}] is generally the act of giving one [thing] and receiving another [thing] in return.

!! Fair Exchange Protocol
A fair exchange protocol is based on trade. As an example suppose [Alice] and [Bob], who wish to [trade] (perhaps [cryptographic]) "items" somehow. 

However, you run into a problem: 
* suppose Alice sends her item to Bob
* but Bob then refuses to send his item to Alice.
In that case, it is not a fair exchange: Bob got Alice's item, but Alice got nothing in return.

Fair Exchange Protocols seek to ensure that scenario never happens. Either they both get each other's "item" or they both get nothing.


!! [Market] [{$pagename}]
An [{$pagename}] of [goods] and [Services] is often called a [Transaction] and these often take place within a [Market]

!! [{$pagename}] types
* [Market]
* [Key-Exchange]
* [AS Exchange]
* [Token-exchange]
* [Decentralized Exchange]
* [Centralized Exchange]
* [TGS Exchange]
* [Local Exchange]
* [Digital Currency Exchange]
* [Internet Key Exchange]
* [Health Information Exchange]
* [RSA key-exchange]
* [Client-Server Exchange]
* [ServerKeyExchange]
* [ClientKeyExchange]

!! [{$pagename}] [Telecommunications]
[{$pagename}], in [Telecommunications], may be a code that refers to a [Central Office] [{$pagename}] [Code]

!! More Information
There might be more information for this subject on one of the following:
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