Key generation method and key generation device

A key generation and key technology, which is applied in the field of security authentication, can solve the problems of high risk of key leakage and achieve the effect of reducing the risk of key leakage

Active Publication Date: 2016-12-28
BEIJING HUADA INFOSEC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a key generation method and a key generation device to solve the problem of high risk of key leakage in existing smart cards

Method used

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  • Key generation method and key generation device

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Secondly, the present invention is described in detail in conjunction with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the sectional view showing the structure of the device will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it should not be limited here. The protection scope of the present invention. In addition, the th...

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Abstract

The embodiment of the invention discloses a secret key generation method and a secret key generation apparatus. The secret key generation method comprises the following steps: data in a predetermined address field of a static random access memory SRAM are selected as initial data; error correcting codes corresponding to the initial data are obtained; the error correction of the initial data is carried out through the error correcting codes, and error correction results are generated; a secret key is generated according to the error correction results; The secret key generation apparatus comprises: a selecting unit, an obtaining unit, an error correction unit, and a generation unit.

Description

technical field [0001] The invention relates to the field of security authentication, in particular to a key generation method and a key generation device. Background technique [0002] Smart card (SMART CARD) is a general term for plastic cards embedded with smart card chips that can execute certain preset programs or complete certain preset functions. Smart cards are mainly used to complete authentication functions with high security requirements such as identification and payment. [0003] When a smart card is used for security authentication, a key stored in the smart card is usually used. As the unique identification information of the smart card chip, the key is important information to identify the smart card and ensure the function of the smart card. Therefore, ensuring the security of the key of the smart card and preventing the leakage of the key has become an important content to ensure the security of the authentication. [0004] In the prior art, in order to pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08
Inventor 滕虓宇马文波张炜于立波
Owner BEIJING HUADA INFOSEC TECH
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