What is a digital signature

A Digital Signature Certificate (DSC) can be presented electronically to prove identity, to access services on the internet or to sign certain documents digitally.
A Digital Signature is an electronic form of a signature. Just as one authenticates a document with handwritten signature, a digital signature authenticates electronic documents.
A Digital Signature Certificate (DSC) can be presented electronically to prove identity, to access services on the internet or to sign certain document