Digital signature—a type of electronic signature—is a mathematical algorithm routinely used to validate the authenticity and integrity of a message. It is an electronic file, issued by an accredited Certification Authority, that typically contains identification information about the holder, including the person’s public key embedded with the licensing authority’s digital certification, so that not only that the recipient can rely upon the authenticity of the document, but get the same verified from the authority should need arises.
A Digital Certificate allows a person and/or an organization to exchange data securely over the Internet using the public key infrastructure (PKI). Digital certificates are issued by certification authorities. DSC in India are used for e-filling, e-Tendering, e-Governance in most of the Govt departments like Income Tax, MCA, GST, ICEGate, DGFT, eProcurement, e-Ticketing, EPFO, IPR, CBSE, AICTE, IREPS, Banks, IRCTC, Gram Panchayat, eCourt , eOffice etc. The scope and the application areas of Digital Certificates is expanding continuously.