Digital certificate is defined as entity identification in digital form that is used by a user or firms to share their information along with authentication and security. It uses public key cryptographic technique and so it is also know as public key certificate.
Digital signature is the signature that is done digitally to secure data or document.It maintains security of the content present in message of information that is being exchanged through e-signature.It follows encryption technique for maintaining authenticity.
Therefore, digital signature is the signing feature that protects macro after being made to maintain its authenticity.