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Entity Alice (A) wants to communicate with Bob (B) so that it can download some information from B using a secure channel. A and B
Entity Alice (A) wants to communicate with Bob (B) so that it can download some information from B using a secure channel. A and B have a certificate, but A and B do not know each other, or trust each other or share a symmetric key if B encrypts the file sent to A with As public key. Discuss whether confidentiality and proof of origin is obtained. How can you improve the security of this transaction?
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