The role of a compression function in a hash function

1 What is the zero point of an elliptic curve?

2 What is the sum of three points on an elliptic curve that lie on a straight line?

3 What characteristics are needed in a secure hash function?

4 What is the difference between weak and strong collision resistance?

5 What is the role of a compression function in a hash function?

 

1 What is the difference between little-endian and big-endian format?

2 What basic arithmetical and logical functions are used in SHA?

3 Describe the set of criteria used by NIST to evaluate SHA-3 candidates.

4 Define the term sponge construction.

5 Briefly describe the internal structure of the iteration function f.

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