DES encryption and decryption algorithm

1. How triple DES enhances performance compared to the original DES?

2. Differentiate S-DES and DES.

3. What is the difference between differential and linear cryptanalysis?

1. Explain about double DES encryption and decryption algorithm.

2. Explain about triple DES encryption and decryption algorithm.

3. What is Man-in-the-middle attack? Explain it with a suitable example.


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