System and Method for Online Digital Signature and Verification

• US 20110289318A1
• Filed: 08/28/2008
• Published: 11/24/2011
• Est. Priority Date: 08/28/2008
• Status: Abandoned Application

• Current Assignee: Jingsong Zhang, Yumei Jin
• Original Assignee: Jingsong Zhang, Yumei Jin
• Inventors: Zhang, Jingsong, Jin, Yumei
• Application Number:
  US12/200,891
• Publication Number:
  US 20110289318A1
• Time in Patent Office: Days
• US Class Current: 713/176
• CPC Class Codes: H04L 9/3226 using a predetermined code, e.g. password, passphrase or PIN network architectures or network communication protocols for supporting authentication of entities using passwords in a packet data network H04L63/083
• CPC Class Codes: H04L 9/3247 involving digital signatures

Abstract

A method to sign online documents may include the steps of loading a signing component from a remote server, automatically launching signing component at user local machine(PC, PDA or smart phone . . .), displaying signing component user interface in web page , entering a password and loading/applying a first key file in cooperation with the signing component, verifying the password and verifying first key, applying the first key to a document digest to generate a digital signature based on the document digest and first key.

Claims

1. A method to generate and verify a digital signature, comprising the steps of:

loading and embedding a signing component from a remote server;

entering a password and applying a first key in cooperation with the embedded signing component;

verifying the password and first key against the remote server with the embedded signing component;

applying the first key to a document digest to generate a digital signature based on the document digest and first key;

obtaining a second key which corresponds to the first key; and

verifying the digital signature based on the second key.

2. A method to generate and verify a digital signature as in claim 1, wherein the method includes downloading the signing component to a local machine.

3. A method to generate and verify a digital signature as in claim 2, wherein the method includes viewing the signing component on the local machine.

4. A method to generate and verify a digital signature as in claim 1, wherein the method step of viewing the signing component on a webpage on a local machine.

5. A method to generate and verify a digital signature as in claim 1, wherein the method step of running the signing component on a local machine.

6. A method to generate and verify a digital signature as in claim 5, wherein the first key and the second key may be regenerated by the user in cooperation with a key generation component.

7. A method to generate and verify a digital signature as in claim 1, wherein the first key is a private key and only stored on the local machine.

8. A method to generate a digital signature, comprising the steps of:

entering a password and applying a first key in cooperation with an embedded signing component; and

applying the first key to a document digest to generate a digital signature based on the document digest and first key.

9. A method to generate a digital signature as in claim 8, wherein the method includes downloading the signing component to a local machine.

10. A method to generate a digital signature as in claim 9, wherein the method includes viewing the signing component on the local machine.

11. A method to generate a digital signature as in claim 8, wherein the method step of viewing the signing component on a webpage on a local machine.

12. A method to generate a digital signature as in claim 8, wherein the method step of running the signing component on a local machine.

13. A method to generate a digital signature as in claim 8, wherein the first key and the second key may be regenerated by the user in cooperation with a key generation component.

14. A method to generate a digital signature as in claim 8, wherein the first key is a private key and only stored on the local machine

15. A method to generate a signing component and to sign a digital signature, comprising the steps of:

loading and embedding a signing component from a remote server;

verifying a password and first key against the remote server with a embedded signing component; and

applying the first key to a document digest to generate a digital signature based on the document digest and first key.

16. A method to generate a signing component and sign a digital signature as in claim 15, wherein the method includes downloading the signing component to a local machine.

17. A method to generate a signing component and to sign a digital signature as in claim 15, wherein the method includes viewing the signing component on the local machine.

18. A method to generate a signing component and to sign a digital signature as in claim 15, wherein the method step of viewing the signing component on a webpage on a local machine.

19. A method to generate a signing component and to sign a digital signature as in claim 15, wherein the method step of running the signing component on a local machine.

20. A method to generate a signing component and to sign a digital signature as in claim 15, wherein the first key and the second key may be regenerated by the user in cooperation with a key generation component.