Des And: 3des

This guide covers the and its more secure successor, Triple DES (3DES) . Both are symmetric-key block ciphers that encrypt data in 64-bit blocks. 1. Data Encryption Standard (DES)

Uses a Feistel network consisting of 16 rounds of processing. DES and 3DES

Rearranges the 64 bits of the input block. This guide covers the and its more secure

Each of the 16 rounds involves expansion, XOR with a subkey, substitution (via S-boxes), and permutation. XOR with a subkey