1. What is a Digital Signature Certificate (DSC)?

 ● A Digital Signature Certificate is a secure digital key issued by Certifying Authorities (CAs) to verify the identity of   the certificate holder. It is used to sign documents electronically, ensuring authenticity and integrity.

2. Why is a Digital Signature Certificate required?

● DSCs are essential for e-filing documents with government portals, securing transactions in digital format, signing legally binding documents, and encrypting data. They are often mandatory for online financial transactions and compliance filings.

3. What are the types of Digital Signature Certificates?

● Class 2 DSC : Used for e-filing of income tax, registration of companies, etc.

● Class 3 DSC: Required for high-level secure transactions like e-tendering, e-procurement, and participation in government bids.
● DGFT DSC: Issued specifically for transactions with the Directorate General of Foreign Trade (DGFT).
● Encryption Certificate (DEC): Used to secure confidential information.

4. Who can obtain a Digital Signature Certificate?

● DSCs can be issued to individuals, organizations, foreigners, and government representatives. Anyone requiring online verification of identity for secure transactions can obtain a DSC.

5. What documents are required to apply for a DSC?

● Applicants typically need identity proof (e.g., Aadhaar, PAN) and address proof (e.g., utility bills, passport). Organizations also need a Certificate of Incorporation or business registration documents.

6. How long is a Digital Signature Certificate valid?

● A DSC is typically valid for 1 to 3 years, depending on the type purchased and the issuer. After the validity expires, it needs to be renewed.

7. How does a DSC work?

● A DSC uses public key infrastructure (PKI) technology. It binds the certificate holder’s identity to a public-private key pair. When signing a document, the private key encrypts the data, while the public key can decrypt it to verify the signature.

8. What is the difference between signing and encryption in a DSC?

● Signing: Used to verify identity and integrity of the document.

● Encryption: Secures the content of the document, making it accessible only to the intended recipient(s).

9. How can I apply for a Digital Signature Certificate?

● You can apply through a licensed Certifying Authority or a Registration Authority. Application forms, supporting documents, and verification processes vary depending on the issuing authority.

10. Can I use one DSC for multiple purposes?

● Yes, generally a Class 3 DSC can be used for a wide range of purposes, including e-filing, e-tendering, and document signing. However, encryption certificates are required separately for document encryption purposes.

11. Can foreigners apply for a DSC in India?

● Yes, foreigners and non-residents can obtain DSCs by providing a valid passport and other required documentation. There are specific DSC types meant for foreigners.

12. What happens if I lose my DSC or the USB token?

● If a DSC or token is lost, report it immediately to the issuing authority to revoke the certificate. A new DSC can then be reissued.

13. Can DSCs be used on multiple devices?

● DSCs are usually stored in USB tokens, so they can be used on multiple devices, but only one at a time, as the USB token must be connected to the device.

14. Is a Digital Signature legally valid?

● Yes, under the Information Technology Act, DSCs are legally valid in India and are widely accepted for e-signing official documents.

15. How can I verify the authenticity of a DSC?

● The authenticity of a DSC can be verified using tools provided by Certifying Authorities or on government portals where digital verification options are available.