Digital Signature and Multiple Signature: Different Cases for Different Purposes

by Chafic Moussa
Sept. 1, 2017 0 comments SANS Institute getting started/infosec

Like paper-based signatures, digital signatures intend to respect a number of security assumptions. Methods of digital signature apposed by a single user have been defined and are widely used. But is it sufficient? What if a legal document requires witnesses and notarization, or a contract needs the signatures of several officers?