The digitalization of business processes has revolutionized the way documents are created, signed and validated, bringing greater efficiency and practicality to companies in all sectors. However, this modernization also requires that rigorous measures be adopted to ensure the compliance of digital signature and electronic transactions in general.
Digital signatures guarantee that electronic documents are authentic, ensuring that the signatory is in fact who they claim to be; integrity, ensuring that the content of the document has not been altered after signing; and legal validity, allowing documents to have legal recognition and be used in administrative and judicial processes.
With the growth of digitalization, companies need to be aware of regulations and good practices related to digital signatures to avoid fraud, prevent litigation and ensure that their processes comply with legal requirements.
In this way, the adoption of compliant digital signatures, in addition to protecting transactions, also strengthens the credibility and reliability of companies in the digital market. In this article, we will look into this topic in order to answer all your questions about it. Enjoy reading!
What is Digital Signature Compliance?
Digital signature compliance refers to the set of legal, regulatory and technical requirements that guarantee the validity, authenticity and security of an electronic signature. This concept is essential to ensure that digitally signed documents are recognized and accepted in administrative processes, commercial transactions and legal proceedings.
For a digital signature to be compliant, it must follow guidelines established by regulatory bodies and international standards, ensuring its effectiveness and reliability.
Compliance involves the application of advanced technologies such as digital certificates issued by trusted Certification Authorities (CAs), asymmetric cryptography, and automated verification mechanisms.
Ensuring digital signature compliance means protecting documents against fraud by preventing forgery and manipulation attempts. Any modifications made after signing can be detected through automatic checks, ensuring that the integrity of the document is maintained.
It should be noted that compliance contributes to the reduction of operational and legal risks, facilitating audits and demonstrating the company's commitment to security and transparency.
Rules and regulations
For a digital signature to have legal validity, it must follow specific rules and regulations that guarantee its authenticity, integrity and security.
In Brazil, this process is regulated by Law No. 14.063/2020, which establishes criteria for the use of electronic signatures in interactions with public bodies and private sectors. The legislation classifies electronic signatures into three types:
- simple: used for low-risk transactions, without the need for rigorous proof of the signatory's identity;
- advanced: they offer a higher level of security and are capable of guaranteeing the linking of the user's identity to the signed document;
- qualified: are the most secure, as they require the use of a digital certificate issued by ICP-Brasil (Brazilian Public Key Infrastructure), ensuring greater reliability and legal acceptance.
In addition to Brazilian legislation, international standards also play a fundamental role in the acceptance and interoperability of digital signatures in different countries.
Regulations such as eIDAS (Electronic Identification, Authentication and Trust Services), from the European Union, establish guidelines for electronic identification and digital certification, allowing electronic signatures to be recognized in all countries of the bloc.
Likewise, standards such as ETSI (European Telecommunications Standards Institute) help standardize technical requirements so that digital signatures are secure and widely accepted.
These regulations and standards ensure that digitally signed documents can be used reliably in commercial transactions, international contracts and administrative processes across different jurisdictions, ensuring the security and legality of digital operations.
The role of cryptography and digital certificates
Cryptography is the basis for the security of digital signatures, ensuring the protection of information contained in electronically signed documents. Using advanced mathematical algorithms, cryptography ensures that data remains confidential and prevents third parties from making changes to the content without it being detected.
This process protects both the integrity and authenticity of documents, making them reliable for use in commercial transactions, contracts and administrative processes.
Digital certificates play an essential role in this context, as they are responsible for verifying the identity of the signer. Issued by a trusted Certification Authority (CA), these certificates guarantee that the digital signature is linked to a legitimate user and that the digitally signed document has not been modified after it was signed.
In this way, digital certificates add even more security to the process, ensuring that documents are legally valid and accepted in different legal and business contexts.
Types of Compliance Checkers
Compliance checkers analyze the validity of digital signatures and can be classified into two main types:
- simplified verification: only checks the presence of a digital signature, without analyzing advanced security details.
- full verification: analyzes certificates, document integrity and compliance with regulatory standards.
The main digital signature formats supported by these verifiers are:
- CAdES (CMS Advanced Electronic Signatures): used for PKCS#7-based signatures, with strong support for long-term validation.
- XAdES (XML Advanced Electronic Signatures): suitable for XML documents, ensuring legal validity and interoperability.
- PAdES (PDF Advanced Electronic Signatures): suitable for PDF files, keeping the signature embedded in the document.
How a Compliance Checker Works
A compliance checker follows a structured and rigorous process to ensure that a digitally signed document is valid, authentic, and complies with legal and technical requirements. The key steps of the checker include:
1. Upload the document
The user inserts the file into the verification system, which can be an online platform or specific software. This initial step allows the tool to analyze the digital signature contained in the document and identify its technical details.
2. Checking the digital certificate
The tool performs a detailed check of the digital certificate associated with the signature, verifying whether the certificate was issued by a trusted and recognized CA; whether it is within its validity period; and whether it follows the standards required by national and international regulations. If the certificate has expired or has been revoked, the system alerts the user about the invalidity of the signature.
3. Analysis of document integrity
The verifier checks whether there have been any modifications to the document since it was signed. This is done through the use of hash functions and encryption, ensuring that any changes, even minor ones, are detected. If the document has been altered since it was signed, the tool will indicate that it is not compliant.
4. Generation of detailed report
The system generates a technical report indicating whether the digital signature meets the required standards – usually containing information about the signatory, the validity of the certificate, the integrity of the document and whether it complies with applicable standards. This report can be used to prove the authenticity of the signature in audits, legal disputes or business transactions.
To ensure compliance with digital signatures, several verification tools can be used. One example is the ITI (National Institute of Information Technology) validator, which allows for the verification of digital signatures free of charge and securely, ensuring that electronic documents meet the requirements set forth by Brazilian law.
In addition to the ITI validator, there are many enterprise platforms that also offer their own validators, adding more security to the digital signature process.
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Benefits of Digital Signature Compliance
The adoption of digital signatures in compliance with specific standards and regulations offers a series of advantages for both companies and individuals. This type of technology streamlines processes, while providing greater security, reliability and sustainability in document management. Below, we highlight the main benefits:
Fraud protection
Digital signatures use advanced encryption to ensure the authenticity of documents and prevent any type of forgery. Since each signature is linked to a unique digital certificate, it is virtually impossible to tamper with it without the fraud being detected.
This factor makes digitally signed documents much more secure than those signed manually or electronically without certification.
Reduction of bureaucracy
With digital signatures, there is no need to go to notary offices or other institutions to have the signature notarized. This process significantly reduces the time spent on formalizing contracts, agreements and other documents, also eliminating the need for printing and physical storage.
Digitization also simplifies the processing of paperwork within companies, allowing for a more agile and efficient workflow.
Greater legal security
Digitally signed documents have guaranteed legal validity, as they follow standards established by national and international legislation. In other words, in administrative and judicial processes, digital signatures are recognized as legal evidence, providing greater reliability and reducing the risk of dispute.
Companies that use this method demonstrate a greater commitment to compliance and data protection.
Sustainability
Replacing physical documents with electronically signed digital files directly contributes to reducing the consumption of paper and other natural resources – which has a positive impact on the environment, reducing waste and encouraging more sustainable business practices.
Digitizing processes also reduces the need to transport documents, reducing carbon emissions associated with logistics and physical storage.
With these benefits, compliant digital signatures become an indispensable solution for companies seeking greater security, efficiency and environmental responsibility in their operations.
Digital signature compliance is vital to the authenticity and legal validity of electronic documents. Adopting reliable solutions protects against fraud, reduces bureaucracy and ensures secure digital transactions. Companies and professionals who use electronic signatures must have the appropriate tools to verify their compliance and ensure their legal acceptance.
ZapSign offers digital signature solutions that meet legal and technical requirements, providing security and convenience for its users. Click here to learn more about how our platform can help your company ensure digital signature compliance and optimize your electronic processes.
Getúlio Santos is the CEO of ZapSign, a lawyer, technology enthusiast, and entrepreneur.
