What is an electronic and digital signature?

To understand the difference between a signature stamp and electronic signature, let’s consider what electronic signatures and signature stamps are. An electronic signature is a digital analogy to a handwritten signature, while a signature stamp is created using a method called hashing to formulate a unique private and public key. Both are legally binding. However, electronic signatures are much more convenient from an ease-of-use point of view because signature stamps require several keys and a digital certification for each signature (e-stamp) applied.