Digital Signature Certificates (DSC) are the digital equivalent (that is electronic format) of physical or paper certificates. A few Examples of physical certificates are driver’s 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.