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What is CES Cashback?

 

 

The origin of the word cryptology lies in ancient Greek. The word cryptology is made up of two components: kryptos, which means hidden and logos which means word. Cryptology is as old as writing itself, and has been used for thousands of years to safeguard military and diplomatic communications. For example, the famous Roman emperor Julius Caesar used a cipher to protect the messages to his troops. Within the field of cryptology one can see two separate divisions: cryptography and cryptanalysis. The cryptographer seeks methods to ensure the safety and security of conversations while the cryptanalyst tries to undo the former’s work by breaking his systems.

 

The main goals of modern cryptography can be seen as: user authentication, data authentication, non-repudiation of origin, and data confidentiality.

 

In today’s society, cryptography is one of tools for privacy & trust. It is used extensively for access control, electronic payments, enterprise security besides other areas.

 

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This website, set up on 21-Dec-2005, aims at developing a free encyclopedia on cryptography and information security. This initiative requires all your support to ensure that it becomes a success. Contribute non-copyrighted material to this website. All you need to do is to create an account for yourself and start adding appropriate material under the right sections.

 

Key management and conventional encryption

 

Conventional encryption has benefits. It is very fast. It is especially useful for encrypting data that is not going …