The biometric information that we capture provides information about the calligraphy graph, consisting of points which measure its position, the speed, acceleration and finally, in devices that allow for it, the pressure with which it was made.
The biometric information stored in the documents is encrypted with a public key whose private key - the one used the decipher the data - is generated by a trusted third party.
Therefore, if it's necessary to decipher this information due to a legal requirement, you must request access to the private key from an independent company, who has been contracted to store it with the highest level of security.