How did DES serve as a foundation for modern encryption algorithms?
Thursday, 03 August 2023
by EITCA Academy
The Data Encryption Standard (DES) played a pivotal role in the development of modern encryption algorithms. It served as a foundation for various cryptographic techniques and paved the way for stronger and more secure encryption methods. This answer will delve into the reasons why DES was significant and how it influenced subsequent encryption algorithms. DES,
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, DES block cipher cryptosystem, Data Encryption Standard (DES) - Key schedule and decryption, Examination review
Tagged under:
Cryptography, Cybersecurity, Data Encryption Standard, DES, Encryption, Feistel Network, Key Schedule
How does the decryption process in DES differ from the encryption process?
Thursday, 03 August 2023
by EITCA Academy
The Data Encryption Standard (DES) is a symmetric block cipher cryptosystem widely used in cybersecurity. It utilizes a Feistel network structure, which consists of multiple rounds of encryption and decryption. The encryption and decryption processes in DES are similar but with some key differences. During the encryption process, DES takes a plaintext message and a