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Published in:
2017 | OriginalPaper | Chapter
10. Cryptographic Systems
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Abstract
In this chapter we will deal with application programs related to cryptography. In love, war and business, we need to send the messages secretly. The art and science of keeping the messages secure is called cryptography. A message to be dispatched is also called as plaintext or cleartext. Encryption is the process of converting the plaintext into a scrambled, unreadable message. This message is called ciphertext. The process of converting the scrambled message back into plaintext is called decryption.