When Do We Use Cryptography?

Cryptography is the study and practice of information which is coded or hidden. It is considered as a branch of mathematics and computer sciences.

There are numerous applications of Cryptography. We use it somehow or the other in our daily lives. The ATM cards are the best modern example of cryptography. Apart from that Computer passwords, electronic commerce all use cryptography in one way or the other.

Our passwords and pin codes are all encrypted on our ATM cards or computers. And only we can access our accounts because we know what the secret codes are.