In checking the digital signature, the verifier ____. a. decrypts the digital signature it received with the supplicant public key to get the message digest b. hashes the plaintext message with the same algorithm used by the sender to get the message digest c. Both decrypts the digital signature it received with the supplicant public key to get the message digest and hashes the plaintext message with the same algorithm used by the sender to get the message digest d. Neither decrypts the digital signature it received with the supplicant's public key to get the message digest nor hashes the plaintext message with the same algorithm used by the sender to get the message digest

A digital signature is a numerical method used for validating a message, applications, or digital text's validity and dignity. Digital signatures are legally considered lawful in most other countries such as the United States in almost the equal way as document signatures.

The verifier hashes the plain text message of the same technique being used by sender to have the text digested while testing the digital signature.