System and method for encryption
US9900148B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2017 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Jun 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for validating a signature request for a first message M, comprising: receiving, a validation challenge (VC) from a signature creation device (SCD), the VC created by the SCD, in response to receiving the signature request and message M from a user, using a second message M′ which is based on message M and a secret shared between the SCD and user, the VC generated by encrypting message M′ using the secret; generating, the message M′ from the VC by decrypting the VC using the secret; displaying the message M′ to the user; receiving confirmation from the user that the displayed message M′ corresponds to the message M; generating, a validation code confirming the signature request to create a signature; and outputting the code to the SCD, to cause the SCD to generate the signature for the user for message M based on successfully verifying the code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.