Application-Layer-Protocol
September 26, 2024Encryption-Decryption
September 26, 2024Encryption-Decryption
| Question 4 |
Which of the following encryption algorithms is based on the Feistel structure?
| Advanced Encryption Standard | |
| RSA public key cryptographic algorithm | |
| Data Encryption Standard | |
| RC4 |
Question 4 Explanation:
A Feistel cipher is a symmetric structure used in the construction of block ciphers.
A large proportion of block ciphers use the scheme, including the Data Encryption Standard (DES).
The Feistel structure has the advantage that encryption and decryption operations are very similar, even identical in some cases, requiring only a reversal of the key scheduled.
A Feistel network(structure) is an iterated cipher with an internal function called a round function.
A large proportion of block ciphers use the scheme, including the Data Encryption Standard (DES).
The Feistel structure has the advantage that encryption and decryption operations are very similar, even identical in some cases, requiring only a reversal of the key scheduled.
A Feistel network(structure) is an iterated cipher with an internal function called a round function.
Correct Answer: C
Question 4 Explanation:
A Feistel cipher is a symmetric structure used in the construction of block ciphers.
A large proportion of block ciphers use the scheme, including the Data Encryption Standard (DES).
The Feistel structure has the advantage that encryption and decryption operations are very similar, even identical in some cases, requiring only a reversal of the key scheduled.
A Feistel network(structure) is an iterated cipher with an internal function called a round function.
A large proportion of block ciphers use the scheme, including the Data Encryption Standard (DES).
The Feistel structure has the advantage that encryption and decryption operations are very similar, even identical in some cases, requiring only a reversal of the key scheduled.
A Feistel network(structure) is an iterated cipher with an internal function called a round function.
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