A list of all B-Trust e-signatures: valid, invalid, temporarily suspended and terminated.
Each list contains the serial numbers of the terminated and temporarily suspended electronic signatures, date of termination and reason.
Root CA lists - three lists, one from every of the three root Certification authorities.
Operational CA lists - five lists, one from every of the five operational Certification authorities. Applicable to certificates issued to clients.
The lists have a fixed validity period. They are updated on a regular basis and in case of any change.
Root Certification Authorities:
Operational Certification Authorities
|Lists of hold and revoked certificates issued by Root CAs|
|B-Trust Root Qualified CA||CRL|
|B-Trust Root Advanced CA||CRL|
Lists of hold and revoked certificates issued by Operational CAs
|B-Trust Operational Qualified CA||CRL|
|B-Trust Operational Advanced CA||CRL|
|Operational CA QES||CRL|
|Operational CA AES||CRL|
The verification is carried out through an OCSP client program (OCSP Requestor) that connects to the B-trust OCSP server (OCSP Responder) at: http://ocsp.b-trust.org. An example of an OCSP client is the ocss command of the OpenSSL library.
The OCSP client sends a request for verification of the signature status to the OCSP server and receives a response signed by the Validation Authority. The answer contains information about the status of the verified electronic signature certificate, the period of validity of the received response and serves as an evidence.
If you do not use an OCSP application, you can use a certificate revocation list (CRL). To determine the status of a signature, download the latest CRL list and upload it to your application. This type of verification of signature status is just as reliable, but takes more time.
More information about OCSP can be found at: www.ietf.org/rfc/rfc2560.txt
Check by serial number
Please enter a serial number:
Please enter a serial number:
Upload a e-signature certificate exported in the ".cer" format to verify its validity:
Clicking the button will redirect you to the the platform for signing documents with an e-signature
Check up the validity of electronically signed documents.
Time Stamp is an electronic receipt that certifies the content of an electronic document at a given time. Receipts can be used for reporting work performed, as a proof of authorship to a particular date, etc.
B-Trust issues Time Stamp certificates and verifies Time Stamp certificates online.
Choose a Time Stamp file-request(*.tsq)
Enter a number from Time Stamp Response in hex or decimal format (You can find the number in the receipt for validation of an electronically signed document.)
Choose a Time Stamp file-response (*.tsr)
Once you have your electronic signature issued, in order to use it you should install specific software on your computer and register the signature in the web browser.
Enter the e-mail with which your signature was registered in B-Trust. In this way we will determine the installation package that you need.
Certification chains are official electronic signatures that should be installed on your computer, so that you are able to sign with your B-Trust signature.
Please continue to the service page where you can install the software appropriate to your browser.
Clicking the button will redirect you to the the platform for changing your B-Trust email password.