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. 

Answer options:

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.

CD