Mechanism to secure side band communication between service processor and an end point
US11281786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An information handling system includes an endpoint device and a service processor. The endpoint device is configured to share a passphrase with the service processor via shared memory architecture transfer mechanism. The service processor is configured generate the sent hash of a message; encrypt the message, the sent hash, and the nonce value using the passphrase to form an encrypted message; and transmit the encrypted message to the endpoint device over a sideband interface. The storage controller is further configured to decrypt the encrypted message using the passphrase to obtain the message, the sent hash, and the nonce value; compare the nonce value to a counter to determine if the nonce value is an old nonce value; calculate an observed hash of the message; and accept the message when the nonce value is not an old nonce value and the observed hash matches the received hash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.