What is the “electronic signature”?

According to the Electronic Signature Law, 2001, an “electronic signature” is a signature that is electronic information or an electronic sign, attached or linked to an electronic message; “Electronic message” is defined as information that is created, sent, received or saved by electronic or optical means, when it is seen, read, heard or retrieved by said means;

The law also defines:
“Secure electronic signature” – an electronic signature in which all of the following are met:
(1) it is unique to the owner of the means of signature;
(2) it enables apparent identification of the owner of the means of signature;
(3) it was produced by means of signature under the sole control of the owner of the means of signature;
(4) it allows identifying a change made in the electronic message after the date of signature;
“Certified electronic signature” – a secure electronic signature which a certifying party has issued an electronic certificate regarding the means of verifying the signature that identifies it;