Here is Question No. 46 a part of our series on UPSC Prelims 2020.
Q46. In India, the term “Public Key Infrastructure” is used in the context of
(a) Digital security infrastructure
(b) Food security infrastructure
(c) Health care and education infrastructure
(d) Telecommunication and transportation infrastructure
Answer: A
- Public Key Infrastructure (PKI) is the combination of software, encryption technologies, and services that enable entities to protect the security of their communications and business transactions on networks. Using a combination of private (e.g., secret) key and public key cryptography, PKI enables a number of other security services, including data confidentiality, data integrity and nonrepudiation. Under this system, one or more trusted parties digitally sign documents certifying that a particular cryptographic key belongs to a particular user or device. The key can then be used as an identity for the user in digital networks.
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