About this document
Understanding the DES Algorithm by DuttaUdayaVenkataChegondi is a document available to read on EtoBox.
The document describes the Data Encryption Standard (DES) algorithm. DES uses a 64-bit plaintext input which undergoes an initial permutation and is then divided into 32-bit halves before being encrypted over 16 rounds using subkeys generated from a 64-bit key. Each round includes expansion, substitution, and permutation functions. Decryption follows the same process in reverse order using the subkeys in reverse order. The algorithm aims to be secure but critics argue the 56-bit key is too short against bru
- Author
- DuttaUdayaVenkataChegondi
- Language
- EN