Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for providing encryption processing

A technology of encryption processing and encryption algorithm, applied in the direction of electrical digital data processing, instrument, platform integrity maintenance, etc.

Active Publication Date: 2017-01-11
NXP BV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For example, power consumption data from encryption processing circuits allows an attacker to make reasonable assumptions about encryption algorithms and their processing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for providing encryption processing
  • Device and method for providing encryption processing
  • Device and method for providing encryption processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The various embodiments discussed herein may be modified and replaced, aspects of which have been shown in the drawings and described in detail. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the invention including aspects defined in the claims. In addition, the term "embodiment" used in this application is only for illustration, not limitation.

[0015] Aspects of the present invention are believed to be applicable to various types of apparatus, systems and methods involving cryptographic processing and providing protection against side channel attacks. While not limited to the examples, the various aspects of the invention can be understood using the examples discussed herein.

[0016] Embodiments of the present invention are directed to devices that provide encryption pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

According to an example embodiment, a device provides cryptographic processing functions using secret data. The device can include protection from differential power analysis (DPA). The encryption processing circuit and its memory can be decoupled from external power source(s) during encryption-related computations. A local power storage element, such as a capacitive element, can provide power while the encryption processing circuit is decoupled from the external power source(s). The local power storage element can then be reconnected and charged once the encryption-related computations are completed or paused.

Description

technical field [0001] The present invention relates to apparatuses, devices, and methods including encryption circuits and, in particular, to providing protection against power detection attacks on encryption circuits. Background technique [0002] Systems using encrypted protocols are vulnerable to attacks, especially when the attack has physical access to the target device. When physically gaining access to a target device, an attacker can monitor or modify the device in order to recover sensitive information. This can include obtaining hidden keys that are used for encryption. For example, physical access to devices allows individuals to discover data that can be used to significantly reduce the strength of encryption algorithms. Using detected data is sometimes called a side-channel attack. A special type of side-channel attack is differential power analysis / attack (DPA). The bypass information for DPA is based on the power consumption of the encryption processing c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/55G06F21/72
CPCG06F21/76G06F21/55G06F21/72G06F21/755G06F21/87
Inventor 伊尔根·诺沃特尼克
Owner NXP BV