Techniques and Services Provided by Cryptography

Nowadays, Cryptography plays a very important role to secure the secret information. In the growth of technology, we use number of ways to secure information over the network. The message which is sent should be secured from hackers. Here, we use the techniques of cryptography to keep details secure. Cryptography is derived as secret writing. Unauthorized people could not extract any information which is hidden. We have to protect the message from the unauthorized peoples. Here, we have mentioned about the private key and public key for encryption. Cryptography is one of the best ways to keep our information secretly. So, it’s the best way to send the information in secured network. There are multiple number of techniques in cryptography .To secure the information we use some services like confidentiality, authentication, integrity, nonrepudiation, access control. We study about the different cryptosystems which will be helpful for the people to access the message and security. The information will be secured by the authorizer from the unauthorized peoples and it can be accessed by the authorizer by giving the private key and outsource key. Hence both keys should match to access the message.