Cryptography

Cryptography has Greek origins. It is a combination of two Greek words, “krupto and graph”, which means secrets and writing respectively. It is a technology which converts stream of texts into coded form in such a way that only the originator and receiver of the coded text can decode the text. Cryptography plays a very important role in internet based commercial activities as many secret documents which include payment details, money transfer and other confidential information are to be transferred from one computer to another.

Cryptography came into being living in the first world war when military messages used to be encrypted and then send to the recipients. In encryption, the basic approach is “shifting by three methods”. Cryptography is a technique which allows a piece of information to be converted in t cryptic form before being stored in the computer database. It is primarily used to protect the confidentiality of information from an intruder.

Here are a few free online encryption tools that may interest you:

• http://www.yellowpipe.com/yis/tools/encrypter/index.php
• http://www.dinofilias.com/encrypt.htm
• http://www.encryptionanddecryption.com/
• http://www.vincentcheung.ca/jsencryption/

Originally posted 2008-06-30 00:01:04.