The most basic version of an electronic signature is known as a simple
electronic signature, and eIDAS defines it as Data in electronic form attached to other electronic data or logically associated with it that the signer uses to sign
. We can find this type of signature in examples such as:
- Signing with an electronic pen when using a credit or debit card in a store.
- When marking a box on a computer, either by typing or applied with the mouse or with a finger on a touch screen.
- Entering a user name and password.
- Using a code card.
electronic signature is the electronic signature which makes it possible to identify the signer (identity) and detect any subsequent change in the signed data (integrity).It is also linked to the signer in a unique way and has been created using means that the signer can maintain under his or her sole control.
Lastly, an electronic signature is considered to be qualified
" in accordance with the previous regulations) that advanced electronic signature based on a certificate that is recognized and generated by a secure signature-creating device. A qualified electronic signature has the same value in relation to the details recorded in electronic form as a handwritten signature has in relation to those recorded on paper
. The qualified signature is one that is generated, for example, by the digital certificates of the FNMT or the Chamber of Commerce (Camerfirma) and the electronic National Identity Document.