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Tag Archives: DES

Data Encryption Standard (DES)

encryption

The Data Encryption Standard (DES) used to be the default standard for symmetric encryption of data. DES was based on an earlier design by Horst Feistel and developed by IBM in the early 1970s. DES was submitted to the National Bureau of Standards as part of a drive to propose …

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Symmetric Encryption

encryption

A symmetric encryption algorithm is a two-way encryption procedure that employs the same key for both encryption and decryption of the information. Theoretically, this seems straightforward as both the sender and receiver of the message should know the key, however in practice safely sharing a key is very hard to …

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What is Cryptography?

cryptography

Throughout history, cryptography has been used to confidentially complete messages to various recipients. This has been specifically beneficial in times of war. Up until World War II, with the use of the German enciphering machine Enigma, communications that have been encrypted were text-based. With the advent of modern computing, cryptography …

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