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.

1. A digital signature primarily confirms which of the following about a document?

That its original content is unchanged since signing

The identity of the user logging into an internet server

That the certifying authority issued the document

The physical location of the signer

2. 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.

1 only

2 and 3 only

3 only

1, 2 and 3

3. What cryptographic method is a digital signature built on?

Public-key cryptography

Simple password hashing only

One-time SMS codes only

Physical ink recognition

4. What happens to a digital signature’s verification if even one character of the signed document changes afterward?

Verification fails, revealing the tampering

Nothing changes; the signature stays valid

The document is automatically deleted

The signature updates itself silently

5. What Indian service lets citizens digitally sign documents online using Aadhaar-based authentication?

eSign

DigiLocker only

UPI

CoWIN

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