In India, the term “Public Key Infrastructure” is used in the context

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In India, the term “Public Key Infrastructure” is used in the context of

Digital security infrastructure
Food security infrastructure
Health care and education infrastructure
Telecommunication and transportation infrastructure
This question was previously asked in
UPSC IAS – 2020
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Public Key Infrastructure (PKI) is a system used to create, manage, distribute, use, store, and revoke digital certificates. Digital certificates bind public keys to identities, providing a way to verify the authenticity of parties involved in digital transactions.
PKI is a fundamental component of digital security infrastructure, enabling secure communication, electronic transactions, and digital signatures through cryptography. It ensures trust in the digital world by verifying identities and encrypting data.
Components of a typical PKI include Certificate Authorities (CAs), Registration Authorities (RAs), a central directory (like LDAP), a Certificate Management System, and potentially Certificate Revocation Lists (CRLs) or Online Certificate Status Protocol (OCSP) responders. PKI is essential for applications like secure web browsing (HTTPS), email encryption, and secure digital transactions. Options B, C, and D relate to physical infrastructure or specific societal sectors, which are not directly associated with the technical term “Public Key Infrastructure”.

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