Digital Signature Certificates (DSC) are secure electronic keys/signatures that validates an individual’s identity for all online transactions. These are issued by Certifying Authorities (CA) and are mandatory for several statutory processes, including tender submission process, GST, etc. Some of the noted Certifying Authorities for DSCs are: NIC, SafeScrypt, (n) mode Solutions, e-Mudhra, Vsign (Verasys) etc.