Qualified electronic signature certificate –
The highest level of legal certainty


Why choose an
e-signature?
SOME SITUATIONS REQUIRE MAXIMUM SECURITY.
In the context of a public tender, a filing with the INPI or a legal document with high probative value, only a qualified electronic signature is recognised.
It has the same legal value as a handwritten signature throughout Europe.
It is the only one that reverses the burden of proof in the event of a dispute.
Qualified electronic signature certificate – Definition and distinction
Qualified electronic signatures (QES) are the highest of the four levels defined by the European eIDAS Regulation.
They are based on three essential elements:
Strong signatory identification
(via identity document and manual or automated verification)
Use of a qualified certificate
Issued by an approved authority (QTSP)
Use of a qualified signature creation device
(HSM, cryptographic key, etc.)
It is legally irrefutable, unless proven otherwise by the opposing party.
Specific use cases for qualified signatures
You need a qualified signature if you sign:
Public tenders (electronic public procurement)
Legal documents with high probative value
INPI filings (patents, trademarks)
Sensitive documents in the event of an audit or dispute
International contracts signed where only SEQ is recognised

How does qualified electronic signatures work with
SECURIT EXPERT?
We have simplified the process to guarantee compliance and fluidity:

Please send us the signatory's identity document.
(or upload it themselves)

The identity verification process has begun.
(video conference or automated verification, as applicable)

The qualified certificate is generated.

The document can
be signed electronically.
With a maximum legal value
All stages of the signature process using a qualified certificate are supervised, automated and secure.
The benefits of signing with a qualified certificate for you
Maximum legal certainty
You are protected, even in the event of a dispute.
Regulatory compliance
Full compliance with eIDAS regulations and the requirements of French and European authorities.
Enhanced credibility
Your partners and customers know that you apply a high level of rigour.
Time savings
The procedure remains smooth, even with a high level of security.
Integrated into our offerings and your business software
Whether you have a one-off requirement or want to automate your qualified signatures via our API, we have a solution to suit your needs.
One-off packs without subscription
Corporate subscriptions
Integration via Universign API
Dedicated support for implementation

FAQ – Everything you need to know about qualified certificate signatures
Is a qualified signature mandatory?
It is mandatory in certain cases (e.g. public procurement). It is recommended whenever legal certainty is a priority.
How long does it take to obtain a qualified certificate?
Generally, between 30 minutes and 24 hours, depending on the verification method chosen.
Does the signatory have to be physically present?
No. Identity can be verified remotely, via videoconference or automated tool.
Can I integrate this signature into my business software?
Yes, via our API compatible with qualified signatures.
Is a signature with a qualified certificate valid throughout Europe?
Yes. Qualified signatures are recognised and valid in all European Union countries.
What other electronic signature solutions do you offer?
We also offer solutions Universign, Simple signature (Level 1), Advanced signature (Level 2), Advanced signature Qualified certificate, Qualified signature (Level 4), Electronic signature for tenders, selectronic signature for chartered accountants et Quantis solutions. Discover the different signature levels here.