Documents signed with inSign contain biometric data of the signatory
The private key is then deposited with an independent authority such as a notary. In the event of a dispute, this person can decode the data with the private key and hand it over to a handwriting expert for analysis. With the associated programme, the so-called inSign Explorer, the handwriting expert can visualise and analyse the signature data. This allows the signature to be attributed to the person who made it.
The process described is the advanced electronic signature (AES), which is used by default in inSign. A simple electronic signature (SES) is a simple signature image, such as the name under an e-mail. In this case, the attribution of a declaration of intent to a specific person is hardly possible. Therefore, the advanced electronic signature should definitely be used for legally secure contracts. With the qualified electronic signature (QES), identification even takes place before the signature.