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Detailed explanation-1: -There are mainly three classes of Digital Signature Certificates, Class 1, Class 2 and Class 3. These DSC are used for different purposes.

Detailed explanation-2: -A certificate-based signature, like a conventional handwritten signature, identifies the person signing a document. Unlike a handwritten signature, a certificate-based signature is difficult to forge because it contains encrypted information that is unique to the signer.

Detailed explanation-3: -Class 3 Digital Signature Certificate (DSC) provides the highest level of assurance or trust within the RCAI hierarchy setup of Controller of Certifying Authorities (CCA) in India. which is mainly used for e procurement and e tendering. Digital Signature Certificate Class 3 are issued to Individuals or Organizations.

Detailed explanation-4: -The digital signature is formed by the signer’s private key and validated by the signer’s public key. In contrast, a digital certificate is provided by a third party and may be validated and authenticated by the end user.