At the stage of S-boxes in DES since we are reducing fragment of a message by 50% is there a guarantee we don’t loose data and message stays recoverable / decryptable?
At the stage of S-boxes in the Data Encryption Standard (DES) block cipher cryptosystem, the reduction of the message fragment by 50% does not result in any loss of data or render the message unrecoverable or undecryptable. This is due to the specific design and properties of the S-boxes used in DES. To understand why
- Published in Cybersecurity, EITC/IS/CCF Classical Cryptography Fundamentals, DES block cipher cryptosystem, Data Encryption Standard (DES) - Encryption
What is the role of the S-boxes in the DES encryption process?
The Data Encryption Standard (DES) is a widely used symmetric-key block cipher cryptosystem that was developed by IBM in the 1970s. One of the key components of the DES encryption process is the S-boxes, which play a crucial role in providing confusion and non-linearity to the algorithm. In this answer, we will explore the role
What is the role of the substitution (s-boxes) step in the DES encryption process?
The substitution (S-boxes) step in the Data Encryption Standard (DES) encryption process plays a crucial role in enhancing the security and confusion properties of the algorithm. The S-boxes are key components of the DES block cipher cryptosystem, and they contribute significantly to the overall strength of the encryption. To understand the role of the substitution