System and method for generation and authentication of a signed document using voice analysis
The invention refers to a process and an arrangement for the generation of a signed text and/or image document, in particular a digital document for electronic sending and/or for electronic storage. The invention is characterized by the fact that the name and/or an image and/or any other representation of a person, for example a person code, is attached to the basic document in combination with an authentication certificate, wherein the authentication certificate is generated as the result of a voice analysis of the person performed in relation with generation of the document in terms of timing.
1. In a computerized network system, a method for generation and authentication of a signed document over the network comprising the steps of:
(a) providing to a service through an interactive interface provided by software executing from a digital storage medium associated with an Internet-connected server on the network providing the service, personal user data specific to a new system registrant, including textual or graphical digital data or images;
(b) storing the user data provided in step (a) in a digital storage medium or memory associated with the server;
(c) generating and providing to the new registrant unique enrollment session identifier and additional data required for continuing registration, said identifier and additional data displayable on a terminal data device connected to the system network and accessible by the registrant;
(d) providing to the server via a telecommunications device initial voice samples of new registrant, said samples recorded, analyzed and stored along with personal data provided in step (a) in memory or other digital storage associated with the server;
(e) assigning to the registered user a unique authentication certificate and storing said certificate in memory or other digital storage associated with the server;
(f) uploading through a user data terminal device a new document to be certified and authenticated;
(g) providing to the server via a telecommunications device current voice samples of new registrant, said samples recorded, analyzed and stored along with personal data provided in step (a) in memory or other digital storage associated with the server;
(h) comparing in a voice comparison unit associated with the server current voice samples provided in step (g) with initial voice samples provided in step (d), and if matched, providing a corresponding output signal to a certification unit associated with the server, said signal generating a current authentication certificate; and
(i) attaching the authentication certificate of step (h) to the document of step (f) wherein the document becomes a signed and authenticated document downloadable to the user's data terminal device, and verifiable by another querying user;
wherein in practice of the method separate system channels are utilized for generation and authentication of the signed document, and document data is transmitted via a channel other than that for transmitting voice data, and generation and authentication of the signed document is accomplished by a single end user registered to the system wherein the single user is the signer of the document.
2. The method of claim 1 wherein in steps (d) and (g) the signer is a subscriber to a mobile telecommunications network provider, and identification of the signer includes verification of the Mobile Subscriber Integrated Services Digital Network (MSISDN) number of the subscribed signer.
3. The method of claim 1 wherein in step (i) text, image or other data representing the signer is attached on the document in combination with the authentication certificate, the certificate generated as a result of signer voice analysis performed in timely fashion with the generation of the document.
4. The method of claim 3 wherein the voice analysis includes generation of current voice profile of the signer provided in step (i), and computerized comparison of the current voice profile against the initial voice profile provided in step (d), and stored in advance by the system at the time of the signer initially registering with the system.
5. The method of claim 4 wherein the initial or current voice profiles of the signer are generated by transmission over the network by a telecommunications or VoIP terminal device to a voice sample input interface connected to the server.
6. The method of claim 4 wherein generation of the current voice profile of the signer involves enunciation of voice samples predefined selected and provided by a computerized random generator associated with the server.
7. The method of claim 4 wherein the current voice analysis identifies the signer based on an internal system identifier such as user ID, telephone number or MSISDN of the telecommunication terminal device of a signer.
8. The method of claim 3 wherein the authentication certificate is integrated in a 2D barcode attached to the document.
9. The method of claim 8 wherein the document exists or is converted to a PDF file prior to attachment of the authentication certificate.
10. The method of claim 3 wherein the system server establishes a unique link between the document to be authenticated and the authentication certificate using a certification session ID assigned to both the document and the respective voice analysis.
11. The method of claim 10 wherein attachment to the document of the authentication certificate is registered by the system server using either or both in combination of the certification session ID and a timestamp.
12. The method of claim 1 wherein upon new user registration to the system a signature image of the registered user is stored by the system in relation to the registered user.
13. The method of claim 12 wherein a unique link between the stored signature image and the stored voice profile of the user is generated via an enrollment session ID assigned to both a procedure of an initial voice analysis and an acquisition of the signature image.
14. The method of claim 12 wherein the signature image is transmitted by fax or email to the system server as a PDF or graphics file.