A Digital certificate – Relationship between digital certificate and digital signature

A digital certificate is a tool in the electronic authentication system, helping to confirm the legality of digital signatures in online transactions. Digital certificates and digital signatures have a close relationship, helping to ensure the safety and authenticity of digital transactions. In this article, we will clarify the concept of digital certificates, their benefits, and the relationship between digital certificates and digital signatures.

What is a digital certificate?

Pursuant to Clause 7, Article 3 of Decree 130/2018/ND-CP, digital certificates are defined as follows:

A digital certificate is a form of electronic certificate issued by an organization providing digital signature certification services to provide identification information for the public key of an agency, organization, or individual, thereby confirming that the agency, organization, or individual is the signer of the digital signature by using the corresponding private key.

Benefits of using digital certificates

Digital certificates bring many practical benefits to businesses and organizations in conducting safe and effective electronic transactions. The following are the benefits of digital certificates:

• Digital certificates help authenticate the legality of digital signatures, ensure all transactions and avoid risks of information falsification.
• Digital certificates also help reduce costs and time related to paperwork, especially in contractual, payment or financial transactions.
• Applying digital certificates helps organizations comply with legal regulations on electronic transactions, thereby enhancing reputation and protecting the interests of participating parties.
• Digital certificates also help businesses not only maintain safety in transactions but also optimize work processes and information security. At the same time, it brings competitive advantages to businesses in the increasingly developing digital business environment.

Components of digital certificates

According to Article 5 of Decree 130/2018/ND-CP, digital certificates include the following components:

• Name of the organization providing digital signature authentication services.
• Name of the subscriber (individual or organization issued with a digital certificate).
• Certificate number no.
• Validity period of digital certificate.
• Subscriber’s public key.
• Digital signature of the organization providing digital signature authentication service.
• Restrictions on the purpose and scope of use of digital certificates.
• Limitations on the legal liability of organizations providing digital signature authentication services.
• Cryptographic algorithm.
• Other necessary contents according to regulations of the Ministry of Information and Communications.

Relationship between digital certificate and digital signature

Digital certificates and digital signatures have a close relationship and support each other in ensuring the security and authenticity of electronic transactions. This relationship is expressed through the following aspects:

• Digital signatures are created based on digital certificates: The service provider will create digital signatures for businesses based on the issued digital certificates. The digital signature is only valid for as long as the digital certificate is valid.
• Digital certificate authenticates digital signature: Digital certificate contains a public key used to check the validity of the digital signature. The partner can use this public key to verify the digital signature, ensuring that the electronic document is actually signed by the owner of the corresponding digital certificate.

To put it simply, a digital signature is a “private key” and a digital certificate is a “public key”. Only when these two “keys” are combined can the digital signature be considered valid and accepted.

Consulting services on issues related to digital certificates

Long Phan is a unit that provides in-depth consulting services on issues related to digital certificates. With an experienced team, we provide customers with the most optimal and effective services.

Long Phan’s consulting services include:

• Consulting on the main contents of digital certificates;
• Consulting on the benefits that digital certificates bring;
• Consulting on digital certificate format;
• Distinguish between digital certificates and digital signatures and relationships;
• Consulting on other issues related to digital certificates for individuals and businesses.

Digital certificates and digital signatures play an important role in protecting electronic transactions, helping to ensure legality and safety for organizations and individuals. Customers can refer to our consulting services to better understand the process of using digital certificates, protecting their rights and complying with regulations. Contact us immediately via the hotline: 0906735386 for quick, and effective support.