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Digital certificate is a concept that often appears when it comes to digital signatures, but not everyone understands this term. So what is a digital certificate? What is the role and application of digital certificates when using digital signatures? What are the steps involved in the issuance of digital certificates? Let’s answer these questions with MISA eSign through the article below.

Digital certificates and things businesses need to know

What is a digital certificate?

Currently, the regulations on digital certificates have been clearly stipulated by the Government in Decree 130/2018/ND-CP issued on September 27, 2018. Accordingly, in Clause 7, Article 3, Decree 130/2018/ND-CP, the concept of what a digital certificate is has been explained as follows:

“Digital certificate” is a form of electronic certificate issued by a digital signature certification service provider in order to provide identifying information for the public key of an agency, organization or individual, thereby identifying recognize the agency, organization or individual as the person signing the digital signature by using the corresponding secret key.

At the same time, also in Clause 7 of this Decree, the basic concepts related to digital certificates have also been explained very clearly:

  • The concept of “valid digital certificate” is understood as a digital certificate that has not expired, is not suspended or revoked.
  • The concept of “Public digital certificate” is explained as a digital certificate issued by a public digital signature certification service provider.
  • The concept of “foreign digital certificate” is explained as a digital certificate issued by a foreign digital signature certification service provider.

Digital Certificate (CTS) is a type of electronic certificate provided by a unit specializing in digital signature authentication. This is a data structure that contains the information needed to conduct secure transactions over the network. Having the role of verifying the identity of enterprises, organizations and individuals in the process of digitally signing on electronic documents.

Who is the subject of the digital certificate?

Based on the concept of a digital certificate, it can be affirmed that the digital certificate holder is the agency, organization, or individual that owns the CTS and uses it to confirm that they are the person who signed the digital signature through the signing of the digital signature. use the corresponding secret key.

Thus, in simple terms, the subject of a digital certificate is the agencies, organizations and individuals that own and use it. In the business of business units, the digital certificate acts as the “ID card” of each business and the subject of the digital certificate is the company name.

general thu so - phan type

Note: Digital certificate providers are only units that create digital certificates to provide to users, not digital certificate subjects.

The digital certificate provider is:

  • National digital signature certification service provider;
  • Public digital signature certification service providers;
  • Organizations providing specialized digital signature authentication services for the Government;
  • The organization provides specialized digital signature authentication service of the organization.

Required components of a valid digital certificate

digital certificate

Currently, digital certificates are certified by an organization providing authentication services digital signatures countries, organizations providing public digital signature certification services, organizations providing specialized digital signature certification services The Government, organizations providing specialized digital signature certification services of agencies, When granted, the organization must fully include the following contents:

✅ Subscriber’s name Name of holder of digital certificate
✅ Serial number Serial number in certificate number
✅ Name of the certifying agency Name of the unit that certifies digital signatures for DN
✅ Digital signature Certified digital signature of the attestation unit
✅ Purpose and limitations Purpose and scope of use of digital certificates
✅ Responsibility Responsibilities of digital signature certification service providers
✅ Cryptographic Algorithm Cryptographic algorithm to determine digital certificate
✅ More information Other necessary information as prescribed by the Ministry of Information and Communications

Classification of digital certificates

1. Organization

Organization’s digital certificate is a digital certificate used to identify entities that are organizations in the electronic environment. The digital signature created by this digital certificate has the same legal value as the seal of the organization.
Digital certificates used by organizations in electronic transactions such as:

– Electronic tax declaration
– Declaring electronic social insurance records
– Electronic Statistical Declaration
– Electronic tax payment
– Electronic banking transactions
– Public service of the State Treasury
– Electronic customs
– Buy, sell, pay trực tuyến, B2B e-commerce
– Sign contracts, electronic documents

2. Personal

Personal digital certificate is a digital certificate used to identify individuals in the electronic environment. A digital signature created from a personal digital certificate has the same legal value as an individual’s handwritten signature when performing transactions.
The digital signature created by this digital certificate has the same legal value as an individual’s handwritten signature when performing electronic transactions.
Personal digital certificates used in electronic transactions such as:
– Data encryption, information security
– Declaration and finalization of personal income tax
– Banking and credit transactions
– Electronic securities
– Trực tuyến shopping
– Buy, sell, pay trực tuyến
– Sign Email, sign electronic documents….

3. Individuals belonging to the organization

Personal digital certificate belonging to the organization is a digital certificate used to identify subjects who are individuals of organizations in the electronic environment. The digital signature created by this digital certificate has the same legal value as the handwritten signature of an individual in the organization. This digital certificate is often associated with the subject’s internal titles such as: General Director, Director, Head of Department, Chief Accountant…

Users of this digital certificate to perform business transactions within the organization or represent the organization to perform transactions with outside parties authorized by the organization:
– Internal business transactions: Sign electronic documents, email, log in to the internal security system…

– Performing transactions authorized by organizations: Electronic document signing, transaction, e-commerce payment, e-banking…

Applications of digital certificates

Not only is the identity card of each business, the Digital Certificate also works:

  • Verify the identity of the digital signature user when logging into a new system
  • Support to digitally sign documents, documents, contracts, invoices, etc. under doc file, pdf file or a document file
  • Encrypt information to ensure confidentiality between sender and receiver over the internet
  • Implement communication channels to exchange confidential information with other entities on the network, for example, implement a secret communication channel between users and webservers

The difference and relationship between digital certificates and digital signatures

Digital signatures and digital certificates carry different roles. The relationship between digital signatures and digital certificates is a supporting relationship. While the digital certificate is the basis for the partner to confirm whether the digital signature is correct or not, the digital signature plays the role of confirming the textual information, or the commitment of the individual or organization.

A digital signature is considered a secure electronic signature when it is created during the validity of the digital certificate and is verifiable with the public key.

Businesses that want to create a digital signature need a digital certificate first. With a digital certificate, businesses need to provide the necessary information upon request. After having a digital certificate, businesses are allowed to create digital signatures.

A digital certificate contains a public key, while a digital signature contains a private key. The digital certificate and digital signature combine to form a key pair. Businesses or individuals can use this key pair to digitally sign.

The secret key of the digital signature is stored in a USB (possibly USB TOKEN or SmartCard) or on the cloud platform (remote digital signature) which helps these keys to avoid being copied or attacked by viruses damage and data loss.

>> Thus, a USB TOKEN or remote digital signature that has been granted a digital certificate is then capable of creating a digital signature<<

Normally, when choosing to use a digital signature, users will have to pay 2 fees: “Token purchase fee” and “Service fee”.

  • Token Fee: The fee to buy this Token is simply the cost of buying an empty USB, which cannot be called a Digital Signature as it is commonly called. (If individuals or organizations use the remote digital signing service, there is no need to pay for the purchase of usb tokens.)
  • Service Fee: Digital certificate issuance service fee, digital signature service provider will load information related to the Business into your TOKEN and generate a key pair consisting of a private key and a public key. The private key for digital signature, the public key for digital signature identification.

Dossier and process of issuing digital certificates for individuals and businesses

Preparing documents for issuance of digital certificates

Subjects wishing to register a digital signature need to prepare a digital certificate issuance dossier, including:

Opposite to with single taste HCSN 1.Decision on establishment of unit/Business registration license

2.ID card/legal representative’s identity card

School well suited decide determined Fort create are not Yes pine believe people Grand face France physical then need bow grant more Decided determined Cut duty/ Proof receive position service belong to people Grand face

Opposite to with fish core belong Nest position 1. Appointment decision/ Title certification of the registered individual

2.ID/ID card/Passport of the registered individual

Opposite to with fish core 1.ID/ID card/Passport of the registered individual


Provided copy star labour proof the paper sheet above or photos of the above documents from the original or notarized copies not older than 6 months.

Individuals and organizations have the choice to submit a copy from the original book, a certified copy or submit a copy and present it with the original for comparison. In addition, individuals or organizations wishing to register digital signatures need to submit an application for a digital certificate according to the form of the certification service provider for that unit to have their records authenticated.

Conditions for issuance of digital certificates

common design principles

Verify digital certificate registration documents

The digital signature certification service provider will identify and authenticate the registrant’s profile during the process of issuing the Digital Certificate and changing information.

After authentication, the provider will accept the registration request in case of successful identification and authentication of all information in the registration request, and at the same time receive the necessary fees to issue the digital certificate. and create a digital signature. If the above conditions are not met, the supplier has the right to refuse the registration request.

Issuance of digital certificates

When the request for a Digital Certificate is accepted by the provider, then a digital certificate will be created and issued based on the information in the authenticated digital certificate request.

The provider will notify the subscriber that the digital certificate has been created and allow the subscriber to access the digital certificate as soon as the digital certificate is valid.

Acceptance, publication and notification of digital certificates

After receiving the notice from the provider, the subscriber will confirm that the information in the issued Digital Certificate is correct.

Then, the provider will publish the digital certificate issued to the subscriber on the database of its digital certificate after the subscriber’s confirmation of the accuracy of the information on that CTS.

The announcement of the issuance of subscriber digital certificates to other organizations and individuals is done by publishing the subscriber’s digital certificate on the trực tuyến system of the provider’s digital certificate.

digital certificate

MISA eSign is the most prestigious provider of digital certificates and digital signatures today

Currently on the market there are many different digital signature and certificate providers, making it difficult for users to choose the right provider. One of the leading reputable digital signature providers today is MISA with 25 years of experience specializing in software development in the fields of finance and accounting, electronic invoices, and electronic tax declaration (T-VAN). ),… for more than 250,000 businesses and millions of individuals. MISA eSign digital signature since its launch has won the trust of individuals and organizations because of its convenience, ease of use and safety:

  • MISA eSign integrates with many softwares such as: Electronic invoices, accounting, tax declaration, etc. Helping customers only need one action to sign and issue invoices, declare taxes, etc. Signing becomes very easy. Simple, save time and effort.
  • MISA eSign is ready to connect with tax declaration software, social insurance, Customs, Hospital, etc. to help customers easily digitally sign and submit reports to state agencies
  • MISA eSign is applied according to the European standard eIDAS on security and people management according to ISO 27000. Leading in the trend of digital signature using new technology.

MISA eSign digital signature is suitable for individuals, individuals belonging to organizations and organizations, If you need to receive không tính phí consultation and quote, contact the hotline immediately. 090 488 5833 or registration here:

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