Sicherheitsverarbeitungseinheit mit sicherer Verbindung zu einer Head-End Vorrichung
Anmelder: Broadcom Corporation 🇺🇸
Details
- Veröffentlichungs-Nr.
- EP2699017
- Aktenzeichen
- EP13003691
- Anmeldetag
- 23. Juli 2013
- Veröffentlichung
- 14. September 2016
- Erteilung
- 14. September 2016
- Rechtsraum
- EP
- IPC
- H04N21/6543H04N21/435G06F21/74G06F21/30G06F21/71H04N7/167H04N21/2347H04N21/236H04N21/418H04N21/434H04N21/4405H04N21/443// H04N21/4623G06F21/79H04N21/266
Abstract
Avoiding that a control message sent from a head-end to a set-top box is intercepted by a compromised host CPU in the set-top box. A transport CPU in the set-top box detects the control message and provides access of the message to a security CPU while prohibiting access of the message to the host CPU. Exclusive access to the message by the security CPU is performed either by a dedicated channel between transport CPU and security CPU or by a protected memory region access to which is only allowed to the security CPU.
Anmelder
- Firma
- Broadcom Corporation
- Land
- 🇺🇸 USA
US-amerikanischer Halbleiterhersteller mit Fokus auf Kommunikations-, Netzwerk- und Speicherchips. Die ursprüngliche Broadcom Corporation ging 2016 in der heutigen Broadcom Inc. auf.
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