Consider the following statements : A digital signature is 1. an electronic record that identifies the certifying authority issuing it 2. used to serve as a proof of identity of an individual to access information or server on Internet 3. an electronic method of signing an electronic document and ensuring that the original content is unchanged Which of the statements given above is/are correct?

Statement 3 is correct because a digital signature is a mathematical technique used to validate the authenticity and integrity of a digital message or document, ensuring it has not been altered. Statements 1 and 2 are incorrect because they describe a **Digital Certificate**, which is the electronic record issued by a Certifying Authority to verify the identity of the holder. The core concept tested is the technical distinction between a digital signature (the mechanism for signing) and a digital certificate (the identity credential).