Signing method, apparatus, and system
US8443196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Apr 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/06
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A signing method, apparatus, and system, which relate to the information security field. The present invention overcomes the problem of signature counterfeit in prior art. The client host generates a transaction message and determines the key information of the message after receiving transaction information entered by a user, forms a data packet for signing, and transmits the data packet to the USB key, which will then extract the key information and output it for confirmation by the user, and if a confirmation is received, the USB key signs the data packet and transmits a signature to the client host; after receiving the signature and the transaction message from the client host, the server extracts the key information from the transaction message to form a data packet for signing and verifies the signature against the data packet. The embodiments of the present invention are mainly applicable to the field of information security.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.