1 List Application Stream Cipher Block Cipher 2 Difference Weak Strong Collision Resistanc Q37136158

1-list a few application of stream cipher and blockcipher?

2-what is the difference between weak and strongcollision resistance?

3- What is the role of compression function in hashfunction?

4- what is the major issue in end to end keydistribution ? how does the key hierarchy concept address thatissue?

5- explain why man-in-middle attack are ineffective onthe secret key distribution protocol discussed in figure below?

6- Discuss the potential security issue that arise dueto public key directory based system?

7-List four

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