What are the Differences Between DES and AES Encryption?
Here is a comparison of DES (Data Encryption Standard) and AES (Advanced Encryption Standard) :
|
Feature |
DES (Data Encryption Standard) |
AES (Advanced Encryption Standard) |
|---|---|---|
|
Key Length |
56 bits |
128, 192, or 256 bits |
|
Block Size |
64 bits |
128 bits |
|
Security Level |
Less secure |
More secure |
|
Encryption Rounds |
16 rounds |
10, 12, or 14 rounds (depending on key size) |
|
Algorithm Type |
Symmetric key algorithm |
Symmetric key algorithm |
|
Vulnerability |
Susceptible to brute-force and differential cryptanalysis attacks |
Considered secure against known practical attacks |
|
Speed and Efficiency |
Generally slower due to smaller block size and fewer optimizations |
Generally faster due to larger block size and better optimization |
|
Design |
Feistel network |
Substitution-Permutation network |
|
Adoption |
Older, less commonly used today |
The standard encryption method recommended by NIST |
Why AES has Replaced DES, 3DES and TDEA?
The Advanced Encryption Standard (AES) has changed older encryption techniques like DES, 3DES, and TDEA because of its superior security, performance, and sturdy design. AES gives longer key lengths, making it more proof against attacks, and methods data more effectively. This transition reflects the want for more potent and greater reliable encryption to defend touchy facts in the face of evolving cyber threats.