COMPUTER ETHICS AND SECURITY
CRYPTOGRAPHY AND ENCRYPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Digital certificates cannot be used to identify objects other than users. Digital signatures actually only show that the public key labeled as belonging to the person was used to encrypt the digital signature.
Detailed explanation-2: -Which of the following can a digital certificate NOT be used for? A digital certificate does not verify the authenticity of a CA; rather, a CA verifies the authenticity of a user.
Detailed explanation-3: -Digital certificates facilitate secure electronic communication and data exchange between people, systems, and devices online. They are issued by Certificate Authorities (CAs) and perform two primary functions: Verifying the identity of the sender/receiver of an electronic message.
Detailed explanation-4: -Information about the user, the user’s public key, and the digital signature of the issuing CA are all included within a digital certificate. A user’s private key should never be contained within the digital certificate and should remain under tight control.
Detailed explanation-5: -A digital certificate, also known as a public key certificate, is used to cryptographically link ownership of a public key with the entity that owns it. Digital certificates are for sharing public keys to be used for encryption and authentication.