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)
56-bit effective key length (plus 8 parity bits for a total of 64 bits). Block Size: 64 bits. Process Steps: DES and 3DES
Each of the 16 rounds involves expansion, XOR with a subkey, substitution (via S-boxes), and permutation. This guide covers the and its more secure
Rearranges the 64 bits of the input block. XOR with a subkey