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CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Cyber Security

Under the IT Act, 2000, which of the following is the legal function of a digital signature certificate issued by a Certifying Authority?

A digital signature certificate issued by a Certifying Authority binds the subscriber's public key to the subscriber's identity. This allows recipients to verify who signed an electronic record and that it was not altered. It does not encrypt all mail or protect the holder from liability.

  1. AIt encrypts every email sent by the holder automatically
  2. BIt gives the holder immunity from cyber offences
  3. CIt links the public key to the identity of the subscriber so that the electronic record's authenticity can be verifiedCorrect
  4. DIt is required only for physical signatures on paper contracts

Explanation

A digital signature uses an asymmetric key pair, and the certificate issued by a Certifying Authority binds the subscriber's public key to the subscriber's identity, letting others verify the signature and authenticity of the electronic record. It does not auto-encrypt mail, grant immunity, or concern paper signatures.

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