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a) Differentiate between encryption and decryption.
b) Explain how cryptography works.
c) List down three examples of symmetric key algorithms and two examples of asymmetric encryption algorithms.
d) Explain using suitable illustrations where necessary how asymmetric public key encryption ensures both confidentiality and authenticity.
e) Explain the role of the following players in a Public Key Infrastructure (PKI)
(i) Certification authority (ii) Certificate holder (iii) Relying party
QUESTION Read the extract below and answer the questions that follow There is general consensus among educators that all learners are not the same. However, a single school
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1. What instructional technology and techniques increase student achievement? 2. Does single-gender education increase student achievement? 3. Does class size impact student achiev
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