How Encryption for Strong Security Works

● EncryptionEncryption● VPNVPN● WANWAN● FIREWALLFIREWALL

Encryption

● When you exchange digital data through the network, convert data so that others do not steal a glance while communicating and it is falsified according to set regulatios.

Virtual Private Network(VPN)

Public circuit..completely..lease line..as if..use..service.It is used for the connection of the network in the enterprise

between bases etc. , and the cost is suppressed to the introduction of the lease line.

What is WAN ?

● Abbreviation of "Wide Area Network".

● The line and the lease line are used.

● The computer is connected mutually.

FIREWALL● I control a particular computer network and

communication with the outside, and the fire wall (a fire wall) is hardware equipped with software aimed at maintaining the security of the internal computer network or the software. I compare the cracking act that is going to invade from the outside an internal computer network to a fire and use expression called the fire wall as a thing checking it.

Reference

Wikipedia http://ja.wikipedia.org/

e-word http://e-words.jp/