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Which of the following statements are true about digital signatures?

A digital signature is a type of public key cryptography. Which of the following statements are true
about digital signatures? Each correct answer represents a complete solution. Choose all that apply.

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A.
In order to digitally sign an electronic record, a person must use his/her public key.

B.
In order to verify a digital signature, the signer’s private key must be used.

C.
In order to digitally sign an electronic record, a person must use his/her private key.

D.
In order to verify a digital signature, the signer’s public key must be used.

Explanation:
A digital signature is a type of public key cryptography. It is used for the following
purposes:
To identify the person signing a document
To authenticate the identity of the sender of a message
To digitally sign an electronic record by using one’s private key
To verify a digital signature by using the signer’s public key


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