The term E signature is short for electronic signature. There a different types of electronic signatures used by businesses and organizations. One type of electronic signature commonly used, is considered a generic signature. A generic signature uses no form of security when it is attached to different types of electronic documents. A good example of a generic signature would be the signature you find at the bottom of email messages.
A E Signature Which Can Encrypt Documents Is Called a Digital Signature
Another type of E signature which organization will use is called a digital signature. The biggest difference between a generic electronic signature and a digital signature is the level of security. A digital signature uses encryption to protect and secure the documents digitally signed. Once encrypted, the documents cannot be accessed, altered or changed. In order for other people to open and review the documents, they will need a public key to decrypt the documents.