O que é uma assinatura digital?

Understanding digital signatures, and how they work

Comece a assinar hoje mesmo.

Registrar-se gratuitamente
Início
|
O que é o HelloSign?

What are digital signatures?

Uma assinatura digital é um conjunto de proteções de criptografia usadas para determinar a autenticidade de um documento ou software. Em termos mais simples, uma assinatura digital é uma maneira complexa de verificar se um documento não foi adulterado durante o trânsito entre o remetente e o signatário. As assinaturas digitais podem ser usadas para identificar e verificar signatários individuais e garantir a segurança e a integridade dos dados em questão.

It’s possible that you’ve heard the terms digital signature and electronic signature. While most people use the terms interchangeably, there is a difference between the two. An electronic signature refers to a protected and legally binding online signature. A digital signature refers to a complex method for authenticating a document. In simple terms, to create a digital signature is a way to verify that a document hasn’t been tampered with during transit between sender and signer.

For the most part, when searching for how to create a digital signature, people are in actual fact looking at how to create an electronic signature. HelloSign enables you to do both, at the same time.


HelloSign offers a simple, easy-to-use and free eSignature software that allows you to digitally sign documents in PDF, Word, Excel, PowerPoint and more with digital signatures embedded in them for security and protection.

How do digital signatures work?

Digital signatures work using public key cryptography. Two mathematically linked keys are generated, one public and one private. The individual creating the digital signature uses the private key, encrypting any signature-related data, whereas the signer’s public key decrypts the data. Digital signatures are authenticated only when the recipient is able to open the document with the signer’s public key. If the recipient is not able to open the document, that is a failsafe sign that there is a problem with the document or signature.

Perguntas frequentes sobre assinaturas digitais

How do you create a digital signature?

A digital signature is created when HelloSign’s eSignature tool provides a one-way hash of the electronic data to be signed, a fixed-length string of letters and / or numbers generated by an algorithm. This encrypted hash is the digital signature.

What are the benefits of digital signatures?


The main benefit of digital signatures is security. They ensure that a document cannot be altered without the recipient knowing about it, and that signatures are legitimate. The use of security features associated with HelloSign digital signatures such as PINs, passwords, asymmetric cryptography, audit trails and timestamps, ensures that documents sent and received for signature with HelloSign are as secure as can be.


What are digital signatures used for?


Digital signatures are used primarily to streamline processes, speed up the document signing lifecycle and improve document integrity. Industries such as government, healthcare, financial services and cryptocurrency platforms all utilize digital signatures to enhance security of highly sensitive information.

Qual é a diferença entre uma assinatura eletrônica e uma assinatura digital?


While most people use the terms interchangeably, there is a difference between the two. An electronic signature refers to a protected and legally binding online signature. A digital signature refers to a complicated method for authenticating a document.


Descomplicado, fácil de usar e da confiança de milhões de pessoas

Explore nossos recursos premium com a versão de avaliação gratuita de 14 dias

Começar agora
Digital Signature

Ícone de seta para a direita

Ver todos os recursos
Ícone de seta para a direita

Ícone de seta para a direitaÍcone de seta para a direita

Ícone de seta para a direitaÍcone de seta para a direita

Perguntas frequentes

Ícone de seta para a direita