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Data processing system and method of initializing data processing system

A technology of data processing system and security level, which is applied in the direction of electric digital data processing, transmission system, encryption device with shift register/memory, etc., and can solve the problem of security level reduction

Active Publication Date: 2018-05-08
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such schemes, the level of security is continuously reduced

Method used

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  • Data processing system and method of initializing data processing system
  • Data processing system and method of initializing data processing system
  • Data processing system and method of initializing data processing system

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Embodiment Construction

[0048] According to the invention, a dynamic trade-off between security and performance can be achieved in data processing systems handling sensitive data, thereby reducing the complexity and cost of these systems. Said compromise can be achieved by marking the keying material used for cryptographic operations that operate on sensitive data with the minimum required level of security. Alternatively, the data processing system may create temporary keying material that may be exchanged and authenticated with long-term secure keying material.

[0049] figure 2 Illustrated are data processing systems with different levels of security in accordance with exemplary embodiments. In this example, the data processing system includes multiple security levels 200, 202, 204, 206, 208. Security levels 202 and 206 may be absent or may be further divided into multiple security levels. Accordingly, security levels 202 and 206 are shown with dashed lines. Each security level provides stora...

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Abstract

The invention proposes a data processing system and a method of initializing a data processing system having at least two security levels, the data processing system comprising at least two security levels, and a key stored in the security levels for a specific one of the security levels material, where the keying material is marked with the minimum security level at which the keying material can be stored.

Description

technical field [0001] The invention relates to a data processing system and a method of initializing a data processing system. Background technique [0002] Security plays an important role in many technical applications today. For example, in Intelligent Transportation Systems (ITS), large amounts of sensitive data may need to be exchanged. Some applications require dedicated hardware solutions for cryptographic operations because the security of general-purpose processors that implement cryptographic operations in software can be easily compromised. Hence, secure elements were introduced. A "secure element" can be defined as hardware capable of securely storing secret information (such as a key) and performing encryption operations (such as AES encryption) on externally provided data using the securely stored secret information. [0003] figure 1 Shown is a block diagram of the high level functionality of a conventional secure element. A secure element 100 typically ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/06
CPCG06F21/6209G06F2221/2113H04L63/0823H04L63/105H04L63/061
Inventor 蒂莫图斯·亚瑟·范雷蒙德科内利斯·马里纳·摩尔曼彼得·玛利亚·弗朗西斯科·罗姆伯茨
Owner NXP BV