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Prelims 2019 · Q94 · Cyber & internal security

Consider the following statements :

A digital signature is

  1. 1.an electronic record that identifies the certifying authority issuing it
  2. 2.used to serve as a proof of identity of an individual to access information or server on Internet
  3. 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?

Show answer

Answer: C. A digital signature is a way of signing an electronic document using encryption so that it is authentic and shows the content has not been changed (statement 3). Statements 1 and 2 describe a digital certificate, which identifies the certifying authority and proves identity. So 3 only.

Watch for: Digital signatures and digital certificates are used together, so students mix up their roles.

Why the other options are wrong
  • A. Wrong because identifying the certifying authority is a feature of a digital certificate.
  • B. Wrong because proof of identity for access is the role of a digital certificate, not the signature.
  • D. Wrong because statements 1 and 2 describe digital certificates.

Source to check: Information Technology Act, 2000, Sections 2(1)(p) and 3; Controller of Certifying Authorities (cca.gov.in)

Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.