Cryptography

Cryptography simply refers that hiding information. Its combination of both maths and computer science and is associated with information theory, engineering and computer security. Cryptography is the process of Encryption and Decryption.In this encryption process the given plain text converted into cipher text at sender side. In the receiver side encrypted code will be converted into decrypted format, in the sense the cipher text can converted into plain text. Some key might used at both the encrypted and decrypted process. Two types of keys used; they are Symmetric encryption key and asymmetric encryption keys. Symmetric encryption uses the single key for both encryption and decryption. But asymmetric uses the public key encryption. Cryptography provides the following safety measures, major part of these measures are Authentication, privacy/confidentiality, Integrity and non-reputations.