About Cryptography and VPNs

Clear Text Protocol handles data over any network without any transformation or encryption. The attacker will eavesdrop on the communication which is performing an unwanted attack in a way.
 

Because whatever data is written in human languages, its nature's according cleartext protocol can be intercepted, eavesdrop and mangle very easily. Because the data that is being translated is not encrypted information on the boon network, public network or private network. If there is absolutely no alternative to a clear text protocol you should use it only on trusted network.


A cryptographic protocol provides services by encrypting any data or information over a network with tight security. Cryptographic protocols have many different goals one of them is to prevent is eavesdropping.

Eavesdropping that's mean is an attack also known as sniffing or snooping attack, is a theft of information as it is transmitted over the network by a computer, smartphone or another connected device that attackers takes advantage of unsecured network communications to access data as it is being sent or received by its user.


If an attacker intercept the traffic, they will not be able to understand it.
 

If you need to transmit private information such as username and password, then you should always use cryptographic protocol, this cryptographic protocol allows over the network communication with tight security.

What if you need to run a clear text protocol on an untrusted network?

You can wrap (tunnel) a clear text protocol into a cryptographic one.

A great example of protocol tunneling is a VPN.

A virtual Private Network (VPN) uses cryptography to extend a private network over the public one, like the internet. The extension is made by performing a protected connection to a private network (such as your office or home network). From the client point of view, being in the VPN is the same as being directly connected to the private network.

Disclaimer

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