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Which of the following is an activity carried out when A and B are establishing communication in a PKI?
A sends the encrypted session key to B
A requests the B's private key from a repository
A uses his/her private key to encrypt a session key to be used in communication
A sends his/her certificate containing his/her private key to B
Public key is used to encrypt the session key in PKI, and is contained in the certificate. Private keys are never shred and cannot be requested from public directories (repositories). The second answer: "A uses his/her private key to encrypt a session key to be used in communication" is also correct. It is assumed from the question, that B is the subject of communication. Poorly worded question. Fix this,.
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