Question: (a) Is MS-CHAP used for initial authentication or message-by-message authentication? (b) How does the supplicant create the response message? (c) How does the verifier check

(a) Is MS-CHAP used for initial authentication or message-by-message authentication?
(b) How does the supplicant create the response message?
(c) How does the verifier check the response message?
(d) What type of encryption does MS-CHAP use? (This is a tricky question but an important one.)
(e) In MS-CHAP, does the server authenticate itself to the client?

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