It is a digital tool coupled with the electronic editor and has a distinctive character that allows the identification of the person who signs and distinguishes his signature from others. It is used to conduct any process that requires proof of signatory’s identity. In addition, it is used in online financial, commercial and administrative transactions as well as in some e-government services such as e-signature on tax forms, banking transactions, online trading and others. It is a power of handwritten signature to provide data protection and inability to deny or falsify.