a) Describe the key distribution problem as it applies to symmetric key cryptography.

b) Analyse the process of hashing using the characteristics of integrity, confidentiality and authentication. You must clearly describe which is these three characteristics are/are not provided by a hash, and why?

c) We have discussed the US (attempted) initiative of the Clipper chip. Explain what this initiative was. Analyse the Clipper chip in terms of the Australian TOLA Act