It entirely depends on what purpose you are going to use the DSC.
- Signature Only: If you choose this option during purchase, you can use DSC for digitally signing the documents. Popular usages include signing PDF documents for Tax Returns Filing, MCA, Legal Contracts, and many other websites.
- Encryption Combo: You can use the DSC to both sign and also encrypt documents. This option includes Digital Signature and Encryption features. Encryption is popularly used in tender portal, to help your company encrypt the bid documents and upload.