Key scheduling process in CAST-128

1. Give a brief explanation about CAST-128 encryption algorithm.

2. What are the different function types used in CAST-128 and give a brief explanation with  suitable diagrams?

3. Explain the key scheduling process in CAST-128.

1. Give brief notes about the strength of CAST-128.

2. Draw and explain the pictorial representation of the CAST-128 encryption algorithm.

3. What is the use of masking and rotation keys in the CAST-128 algorithm?

4. Define PITABLE.