An electronic signature guaranteed by a Trusted Third Party
An electronic signature has the same legal value as a handwritten signature (French law no. 2000-230 of 13 March 2000).
With CertSign, sign electronic documents to give them legal value and have your clients and prospective clients do the same.
As a Trusted Third Party, CertEurope carries out each stage of the signature process according to the standards and regulatory texts in force.
Technical principle of electronic signature
Electronic signature, based on asymmetric cryptography, relies on the use of a public key and a private key that are mathematically related. The issuer hashes the document to be sent and encrypts the hash value using their private key. The document is then sent to the recipient with its encrypted hash value and the information in the signatory’s electronic certificate. The recipient can decrypt the electronic signature using the public key contained in the signatory’s electronic certificate, which can be accessed via the Certificate Authority’s directory or website. Comparing the decryption of the hash value received with the results of hashing the received document makes it possible to check that the hash values match, proving the document has not been modified.