Des And 3des <PLUS>

Developed in the 1970s, DES was the global standard for decades before its 56-bit key became vulnerable to modern brute-force attacks.

Uses a Feistel network consisting of 16 rounds of processing. 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) Developed in the 1970s, DES was the global

56-bit effective key length (plus 8 parity bits for a total of 64 bits). Block Size: 64 bits. Process Steps: Developed in the 1970s

Rearranges the 64 bits of the input block.

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