Data processing device

• US 20040034789A1
• Filed: 08/11/2003
• Published: 02/19/2004
• Est. Priority Date: 02/09/2001
• Status: Active Grant

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Wallstab, Stefan, Otterstedt, Jan, Horvat, Helmut
• Granted Patent: US 7,739,520 B2
• Time in Patent Office: Days
• US Class Current: 713/193
• CPC Class Codes: G06F 15/7867 with reconfigurable architecture
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/72 in cryptographic circuits
• CPC Class Codes: G06F 21/77 in smart cards
• CPC Class Codes: H04N 21/4181 for conditional access
• CPC Class Codes: H04N 21/4405 involving video stream decryption
• CPC Class Codes: H04N 21/6334 for authorisation, e.g. by transmitting a key wireless communications network key management H04W12/04; wireless communications network access security H04W12/08

Abstract

The invention relates to a data processing device with a functionally programmable logic circuit and a programming interface. An authorization control unit is provided, which protects the programming interface against an unauthorized access. This enables the functions of a semiconductor module to be changed in a customer-specific manner while preventing unauthorized entities from subsequently changing the functionality.

Claims

1. A data processing device, comprising:

a functionally programmable logic circuit;

a programming interface; and

an authorization control unit for protecting said programming interface against an unauthorized access.

2. The data processing device according to claim 1, wherein said functionally programmable hardware component is configured for executing a crypto-algorithm.

3. The data processing device according to claim 1, further comprising a manipulation detection device for detecting manipulations on said functionally programmable logic circuit, said authorization control unit and said programming interface.

4. The data processing device according to claim 1, wherein said authorization control device is realized by a microprocessor that can also be used for other tasks.