What is an electronic signature?

This technology allows, without a digital certificate, the formalization of electronic documents and has several technical evidences.

Electronic Signature Concept

The Electronic Signature is the genre to indicate the species of identification of authorship regarding any document formulated by electronic means. Therefore, while the Electronic Signature is equivalent to the gender, the Digital Signature is defined as one of the gender types.

The nomenclature “electronic signature” was chosen due to the fact that it characterizes a broad sense expression, that is, broader in comparison to the digital signature. The term "electronic signature" would be technologically neutral, as it keeps the techniques open to be adopted, while the term "digital signature", a type of the electronic signature genre, would be choosing the asymmetric cryptography beforehand.

Among the types of Electronic Signature, we can mention: Passwords, Digital Signature, Digital Signature and Digital Acceptance.


Any change in the electronic document causes the signature to be invalidated, thus guaranteeing the principle of inalterability.

The author of the electronic signature uses their private key to encrypt it in order to guarantee authorship in an electronic document. This authenticity is only achieved because the private key is accessible exclusively by its owner.

It is ensured by article 10 of MP No. 2,200-2, which instituted the Infrastructure of Brazilian Public Keys - ICP-Brasil, conferring the presumption of legal veracity in relation to the signatories in the statements contained in the documents in electronic form, produced by means of the certification process made available by ICP-Brasil.


The electronic signature can be applied to the most diverse types of electronic documents such as contracts, powers of attorney, reports, e-mails, certificates, web forms, reports, images, mandates, notifications, balance sheets, statements, petitions, test results, medical records, proposals and insurance policies and electronic files transferred between companies (EDI), making it possible to eliminate the use of paper and reduce the costs for issuing, storing and disposing of these documents.


With document shipment (courier, post office and others), paper printing (toner and ink), physical storage (warehouse, files, safes and others), document management (control, query, validity, audit, location and recovery) and signature authentication (digital signature).

How long does it take you to formalize a paper contract? If it depends on the QualiSign Portal, it is very fast. It is enough for the parties to access the web, regardless of where they are physically, and in possession of their digital certificates sign the contract.

Authenticity, integrity, non-repudiation, reliability, inability to backdate in time, minimizing fraud and state-of-the-art technology infrastructure.

You can sign a contract or any document with your digital certificate, a card reader and access to the web, anytime and anywhere on the planet.

Get to know our customers' success stories

Make improvements to your business process.

The most complete and secure Portal for Digital and Electronic Signature of Electronic Documents.

More questions?

QualiSign Data


Rua Correia Dias 337 - 2th floor - 04104-001
São Paulo - SP - Brazil


+55 (11) 5906-7200

Company: : Qualisign Informática SA - Registered with CNPJ/MF No. 17.489.855/0001-20 - State Registry exempt

More information about QualiSign should be requested by email to:

ICP Brasil autoridade de registro logo
Observatorio nacional Autoridade Certificadora de Tempo logo
AR-QualiSign garantia e confiabilidade logo
Microsoft Azure logo
SafeWeb logo
Equinix logo
This website uses ICP-Brasil, standards, as per Provisional Measure 2.200-2 of August 24, 2001.