SHOPPING CART See the items added 0
+351 253 560 650

(call to the national fixed network)


You do not know what the most appropriate type of certificate for yourself or your company?

Technical Suport

Need Technical Support? To better serve you, we offer a ticket System.

Express Service

Do you have urgency in issuing your Qualified Digital Certificate?

Shopping Guide

Trying to place an order?

We help!

Certification Services

Electronic Seal QDC

The electronic seal certificate is a new figure introduced by Regulation eIDAS, and from a technical point of view similar to an electronic signature certificate, but it is designed exclusively for use by a legal person.

The qualified electronic seal gives documents to which is affixed the legal presumption of integrity and authenticity of data origin, throughout the European Union.

Simply put, there is a clear separation between electronic signatures which are now exclusively aimed at individuals (individuals), while the electronic seal is intended to organizations (legal persons).

  • Purchase Options
  • Documentação/Validação de Identidade
  • Technical Information
  • Choose the pack corresponding to the desired device.

    Complementary products.

    Additional Notes:
    1. The Qualified Digital Certificate will be issued and valid for three years.
    2. If there is an expiration date on any document that proves a legal representative capacity (eg power of attorney, delegation of powers, etc.), the certificate shall be issued with that date of validity.
    3. The pack value includes:
    - 100 timestamps;
    - 1st annuity of the Qualified Digital Certificate;
    - Chosen cryptographic device:
    > HSM Pack - Stored at DigitalSign
    > Smartcard/Token Pack - In the client possession
    - Drivers and software;
    4. The subsequent annuities (optional) will have a value of 128€ +VAT.
    5. You will be notified of the data for payment of the respective annuities with about 30 days in advance.
    6. Non-payment of annuities results in automatic revocation of the certificate.
    7. The annual fee for the Sign and Go License costs €25.00 + Taxes, with updates and the customer support included.

  • The following documentation must be sent by post or delivered by hand, in its original version:

        • Application for Digital Certificate Issuance duly signed and notarized; (this document will be provided via email when finalizing the order ordering)
        • Photocopies of identification documents (e.g. ID Card) of the members of the Corporate Bodies identified in the Application for Digital Certificate Issuance Field 2 and that signed the power of attorney (if applicable);

    Shipping address:
    DigitalSign – Certificadora Digital, SA
    Largo Padre Bernardino Ribeiro Fernandes, 26
    4835-489 Nespereira – Guimarães


      • In case of indicating a permanent certificate code, make sure that it is valid (active certificate) for online consultation;
      • The documents that have expiration date must be valid at the time of the documentation validation;
      • In case there is an expiration date present in any delegation of powers document (eg: power of attorney, minutes of installation, etc.), the certificate will be issued with the said expiration date;
      • The signatures contained in the documents shall be in accordance with the presented identification documents;
      • The e-mail address to be given must be valid and be consulted regularly (email to which the certificate activation codes will be sent);
      • In the cases of disagreement, the data should be updated before the certificate purchase;
      • The documentation will be checked within a maximum of two (2) business days after receipt and payment confirmation;
      • As soon as the application is approved, your digital certificate will be sent to you via postal mail or equivalent (to the identified address).

    After receiving your Qualified Digital Certificate

    • Please complete and sign the Term of Reception which will be sent together with your Qualified Digital Certificate;
    • Send by fax (No. 253 560 639) or by email ( the completed Term of Reception, correctly completed and signed by Representative / Attorney;
    • DigitalSign will send you the activation codes (PIN and PUK) through secure e-mail;
    • Follow the instructions in the aforementioned message to complete the installation process of your new Qualified Digital Certificate.
  • Pack SmartCard

    - 1 Qualified Digital Certificate for Digital Signature
    - 1 cryptographic card (smart card) customized with the name / company
    - 1 Card Reader SCM SCR3310v2 (or equivalent)
    - All drivers and software included: Windows XP SP3, Vista, 7, 8, 8.1, Linux kernel 2.6 or higher, MacOS 10.5, 10.6, 10.7, 10.8, 10.9, 10.10

    Pack USB

    - 1 Qualified Digital Certificate for Digital Signature
    - 1 USB cryptographic Token
    - All drivers and software included: Windows XP SP3, Vista, 7, 8, 8.1, Linux kernel 2.6 or higher, MacOS 10.5, 10.6, 10.7, 10.8, 10.9, 10.10
    - 100 timestamps.


    - The card / token has two passwords, PIN and PUK . PIN password is of use, ie allows the use of its private key from the card / token;

    - If this password is entered incorrectly 3 times, the certificate is blocked;

    - After three incorrect attempts entering the PUK, the card / token and hence the license shall be destroyed;

    - CAUTION: Do not initialize or format your card, it will lead to irretrievable loss of your digital certificate.