Explain the concept of cryptography

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CRYPTOGRAPHY

* Explain the concept of cryptography.

The concept of cryptography has to do with privacy and security. It's a system that encrypts data so two or more entities may communicate in private with secure transmission of data. Cryptography can be used for telephone conversations or computer data transmissions.

* What are the various types of cryptography?

Various types of cryptography, according to Encarta (2009) include, "codes, ...