System and method for signing a message to provide one-time approval to a plurality of parties
US8607046B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2007 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jan 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for batch signing of a message is provided. An administrator initiates a management operation directed to a plurality of security appliances organized as a cluster. In response, the security appliance generates an operation context identifying the management operation to be performed. In addition, a secure encryption processor (SEP) of each security appliance generates a random nonce. The nonces are then assembled along with the operation context into a single message. The message is then cryptographically signed by an appropriate number of administrators using a cryptographic key associated with each administrator. The signed message is returned to the security appliances, where each security appliance examines the signed message and determines whether its nonce is present within the message. If so, the security appliance performs the desired management operation. However, if its nonce is not present in the signed message, the management operation is disallowed and not performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.