An overview of Cryptography

All humans need to communicate and share information to each other. To communicate with each other humans have used different communication channels over the period. When two or more individual shares information, the concern is about security and privacy of that message which has sent through any communication channel. The sender of information will want to sure that his message will reach to the intended recipient with secrecy and privacy. To accomplish the secure and private communication, one can use the technique called Cryptography. Using cryptography one can be sure that his message is secure even if it falls under the wrong hand. Cryptography is a science and art to code any message or information in such a way that nobody else can read or modify it.