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• The short answer is because a two way handshake would only allow one party to establish an ISN, and the other party to acknowledge it. Which means only one party can send data. But TCP is a bi-directional communication protocol, which means either end ought to be able to send data reliably.

• In telephone communication, handshaking is the exchange of information between two modems and the resulting agreement about which protocol to use that precedes each telephone connection. You can hear the handshaking in those crunching and other sounds when you make a dial-out call from your computer.

• A four-way handshake is a type of network authentication protocol established by IEEE-802.11i that involves standards set up for the construction and use of wireless local area networks ( WLANs ). The four-way handshake provides a secure authentication strategy for data delivered through network architectures.

• Handshake. The handshake is often the steps of verifying the connection, the speed, or the authorization of the computer trying to connect to it. An example of handshaking is when a modem connects to another Modem; the tones heard after the dialing is the handshake and is how the computers greeting each other.

The short answer is because a two way handshake would only allow one party to establish an ISN, and the other party to acknowledge it. Which means only one party can send data. But TCP is a bi-directional communication protocol, which means either end ought to be able to send data reliably.

In telephone communication, handshaking is the exchange of information between two modems and the resulting agreement about which protocol to use that precedes each telephone connection. You can hear the handshaking in those crunching and other sounds when you make a dial-out call from your computer.

A four-way handshake is a type of network authentication protocol established by IEEE-802.11i that involves standards set up for the construction and use of wireless local area networks (WLANs). The four-way handshake provides a secure authentication strategy for data delivered through network architectures.

Handshake. The handshake is often the steps of verifying the connection, the speed, or the authorization of the computer trying to connect to it. An example of handshaking is when a modem connects to another Modem; the tones heard after the dialing is the handshake and is how the computers greeting each other.

The short answer is because a two way handshake would only allow one party to establish an ISN, and the other party to acknowledge it. Which means only one party can send data. But TCP is a bi-directional communication protocol, which means either end ought to be able to send data reliably.