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?

1. Statement 1 is incorrect. A digital signature is cryptographically linked to the signer and the document, ensuring authenticity and integrity. The electronic record that identifies the certifying authority issuing it is typically a digital certificate, which often accompanies the digital signature but is distinct from it. 2. Statement 2 is incorrect. While digital signatures can be part of authentication systems, their primary function is to sign documents, providing authenticity, integrity, and non-repudiation. They are not primarily used as a general proof of identity for accessing information or servers on the Internet; other methods like passwords, OTPs, or digital certificates are more common for access control. 3. Statement 3 is correct. A digital signature is precisely an electronic method of signing an electronic document. Its cryptographic nature ensures that the signatory can be verified (authentication) and that the original content is unchanged since signing (integrity).