Method, device and system for downloading white-box library file

A library file and white box technology, which is applied in the field of downloading white box library files, can solve problems such as key insecurity, and achieve the effects of simplifying the encryption process, improving security, and facilitating updates

Active Publication Date: 2018-06-01
BEIJING BANGCLE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present application provides a method, device and system for downloading white box library files to solve the problem of key insecurity in the prior art

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  • Method, device and system for downloading white-box library file
  • Method, device and system for downloading white-box library file
  • Method, device and system for downloading white-box library file

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0032] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0033] In this application, a dynamic white box technical solution is mainly introduced. The so-called dynamic white box means that the white box library file does not need to be ...

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Abstract

The application relates to the technical field of terminal security protection, in particular to a method and a device for downloading a white-box library file, and aims to solve the problem of key insecurity in the prior art. The method mainly comprises the following steps: submitting a library file generation request to a server; and receiving a white-box library file fed back by the server according to the library file generation request in order to subsequently perform encryption and decryption operations according to the while-box library file and a received key file. Through the technical scheme, key updating becomes relatively convenient. Moreover, the white-box library file does not need to be updated during key updating, so that a dynamic white-box encryption flow can be simplified, and the security of keys is enhanced. Furthermore, the security in ciphertext decryption and plaintext encryption performed by a user is enhanced.

Description

technical field [0001] The present application relates to the technical field of terminal security protection, in particular to a method, device and system for downloading white box library files. Background technique [0002] With the development of terminal technology, more and more application programs are installed in the terminal. In the process of using these applications, users will generate some data that they do not want to be stolen by attackers, or users do not want the execution logic of the application itself to be reversely cracked by attackers. In order to protect the security of the application program and the data generated during its running, it is often necessary to encrypt these data. [0003] The traditional encryption technology is black-box encryption technology. Black-box encryption technology generally refers to the technology of encrypting plaintext data with an encryption algorithm in a black-box environment to obtain ciphertext data and keys. Am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L9/08H04L29/06
CPCH04L9/0863H04L9/0891H04L63/0428H04L67/06
Inventor 阚志刚陈彪王全洲卢佐华方宁
Owner BEIJING BANGCLE TECH CO LTD
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