Understanding Digital Signatures
Fritz H. Grupe, Stephen G. Kerr, William L. Kuechler Jr., Nilesh V. Patel · SSRN Electronic Journal · 2003
Digital Signatures are a technology that allows two parties to validate the authenticity of electronically transmitteed information and documents. When added to a document, a digital signature provides some assurance that the document's sender is the person she purports to be.