This code is present in all documents with digital signatures and verifiers try to verify that files with this type of signature comply with the standards of the ICP-Brazil. If this does not occur, it means that the signature is invalid. When the summaries match, it means the signature has integrity. ![]() It uses the public key of the signer's digital certificate and reverses the cryptographic process. To know if the signature of a document is really complete, it is necessary to go through a verification process from a signature validator. Therefore, to know if the signature of a document is complete, it is enough to make the comparison between the two cryptographic keys. cryptographic keyĮvery digital signature has two cryptographic keys with different purposes: while one decrypts the document and is also read by the recipient, the other makes it secure. To carry out the validation, it is necessary to take into account the points presented below. What points should be considered when validating a digital signature? Therefore, there is a need for your identity to be validated and complete.įinally, the verification of digital signatures complies with the rules established by ICP-Brasil, guaranteeing its validity. After all, most of the time, subscribers are not present in the same physical environment. Therefore, your subscriptions must be done in a secure environment.Īnother point to be considered is the integrity of the signatories. But the platforms dedicated to this type of firm have ways to validate them and this is very important.įirstly because of security, as online documents involve data regarding your company, employees, employees and customers. There are several ways to make a digital signature, even free of charge through Word. Why is it important to validate the digital signature? Therefore, signatures cannot be forged, as only the signer is able to decrypt the key on the platform, making his signature valid. In addition, the algorithm also creates the hash, that is, a set of data corresponding to the signed file and which encrypts it with day and time. That way, when a person digitally signs a document, the signature is securely created from the key. How does digital signature work?ĭigital signatures follow a protocol called PKI (Public Key Infrastructure) and make providers generate keys that can be private or public. They are not the same thing, although the digital signature is a type of electronic signature.Īfter all, electronic signature covers other types of electronic identification such as login and password authentication, biometrics, facial recognition and tokens. This doubt is frequent, so we always try to explain it. Are digital signatures and electronic signatures the same thing? The most popular types of digital certificates are A1 and A3. O digital certificate, by the way, is issued by certifying authorities that follow the standards of the Brazilian Public Key Infrastructure (ICP-Brasil). For this, it makes use of cryptographic resources, digital certificate and virtual key. ![]() The digital signature is intended to prove the identity of the people who sign the contract.
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