Details on Advanced Electronic Signatures with Qualified Certificates – Level 3


The highest level of security for your sensitive documents
SOME SIGNATURES LEAVE NO ROOM FOR ERROR.
In the context of public tenders, INPI filings or documents with strong probative value, a qualified signature is required by law.
It is the only electronic signature that has the same legal value as a handwritten signature, without any room for debate.
Why choose an advanced electronic signature with a qualified certificate?
This level 3 is essential for:
Responding to public tenders (public procurement, local authorities)
Register a patent or trademark with the INPI
Signing contracts with significant legal implications
Ensuring a verified digital identity upstream
Protect your documents from falsification
In summary: you secure your commitments, protect your business, and meet the most stringent requirements.
How does advanced electronic signatures work?
Advanced signatures with qualified certificates are based on several key steps that guarantee their superior level of security.
Enhanced identity verification
Before signing, users must undergo a rigorous identity verification process, either in person or remotely (video conference + ID).
Issuance of a personal qualified certificate
A digital certificate is issued in your name by an approved certification authority. This certificate is stored in a secure device (HSM).
Legally binding signature
Each signature is uniquely linked to the signatory, with a timestamp and full traceability. It is legally recognised throughout Europe.
The concrete benefits
for you
Advanced signatures with qualified certificates are based on several key steps that guarantee their superior level of security.

Maximum security
Signed documents cannot be modified or contested.

Enhanced credibility
You inspire confidence in demanding administrations and partners.

Legal
protection
In the event of a dispute, your electronic signature is legally irrefutable.

Who uses this signature level?
Our customers who use advanced signature with qualified certificates:
Law firms specialising in
public law
Companies responding to public tenders
Design offices, architects, engineers
Startups filing patents and trademarks
Chartered accountants and auditors
Comprehensive support at every stage
At SECURIT EXPERT, we understand that implementing an advanced electronic signature system can seem complex. That's why we support you every step of the way:
Help with identity verification
Certificate activation and management
Training in the use of the solution
Responsive technical support
Our goal: to enable you to sign quickly and with confidence.

Frequently asked questions about advanced electronic signatures (FAQ)
Is a qualified signature mandatory?
Yes, for certain specific cases such as public tenders and procedures with the INPI.
Can I use this signature for other documents?
Absolutely. It is valid for any document requiring a very high level of legal certainty.
Do I need to install any specific software?
No. Our solution is 100% online and compatible with your current tools.
How long will it take to receive my certificate?
On average, 24 to 48 hours after your identity has been verified.
Is SECURIT EXPERT accredited?
Yes, we work with Universign, a Qualified Trusted Service Provider recognised by ANSSI.
What other solutions do you propose?
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.