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What is Overview of Data Encryption Standard (DES) about?

This document discusses block cipher principles and the Data Encryption Standard (DES). It begins by explaining block ciphers versus stream ciphers and the basic design of block ciphers. It then describes the DES algorithm, which uses a Feistel network structure with a 64-bit block size and 64-bit key. A simplified version of DES called S-DES is also presented to illustrate the design concepts using an 8-bit block size and 10-bit key. The key generation, encryption, and decryption processes are explained in

Author

Marah Mala

Language

EN