Digital Signature Certificates (DSC) are the digital/electronic format of physical or paper certificates. Few Examples of physical certificates are drivers’ licenses, passports, or membership cards. Certificates serve as proof of identity of an individual for a certain purpose; for example, a driver’s license identifies someone who can legally drive in a particular country. Likewise, a digital certificate can be presented electronically to prove one’s identity, access information or services on the Internet, or sign certain documents digitally.