Question

Statement X:
Private key can verify a digital signature created by public key.
Statement Y:
Public key means the key of a key pair create a digital signature.

Select the correct from the options given below -

• A. Statement X is false but Statement Y is true
• B. Statement X and Statement Y both are true
• C. Statement X is true but Statement Y is false
• D. Statement X and Statement Y both are false

Answer 1

The correct option is D Statement X and Statement Y both are false

For symmetric encryption, the same key is used to encrypt the message and to decrypt it. For public-key encryption, instead the recipient generates two keys together, a public encryption key and a private decryption key. The sender of an electronic document uses their private key to encrypt that document; this is the digital signature. The receiver then decrypts the signature with the public key to verify that it matches the attachment.