Digital signature

A digital signature is a kind of electronic signature that uses an encryption system. Thus, the digital signature becomes a subset of electronic signature and therefore is a particular type of electronic signature. Digital signatures are based on using a mathematical function that can be created only by the creator as equivalent to putting the creator’s manuscript signature. This mathematical function called “key” and, being unique to the creator named as “private key,” is usually copied onto a device like a USB token so that it can be used to add to another code to increase the safety of use.

A digital signature uses a private key and public key combination to provide electronic authentication. This is similar to encrypted messages that worldwide military use to send coded messages to their intended destinations. The encryption may be of different types and one of the types is followed depending on convenience or standards to be adhered to.