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A method for implementing security authentication of application program based on cpu space-time isolation mechanism

An application program and security authentication technology, applied in computer security devices, program/content distribution protection, instruments, etc., can solve problems such as tampering and poor timeliness, and achieve the effects of ensuring validity, reducing key leakage, and high isolation

Active Publication Date: 2020-02-07
中软信息系统工程有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention designs a method for realizing application security authentication based on the CPU space-time isolation mechanism, and provides hardware-level root of trust and strong security authentication for it through security enhancement of the execution flow of the application startup process, effectively Solve the problems of key tampering and poor timeliness, and improve the security of computer terminals during application loading within a limited time loss

Method used

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  • A method for implementing security authentication of application program based on cpu space-time isolation mechanism
  • A method for implementing security authentication of application program based on cpu space-time isolation mechanism

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Embodiment 1

[0034] like Figure 1-2 As shown, a method for implementing application security authentication based on the CPU space-time isolation mechanism, including a signature process and an authentication process;

[0035] Among them, the signature process: each application of the secure operating system provider issues a set of public-private key pairs and X.509 certificates (called application certificates), and embeds the certificate number into the elf file header; The private key signs the elf binary file, and embeds the signature value into the extensible area of ​​the application certificate; in addition, the supplier uses its own private key to sign the application certificate and stores the signature value in the "issuer unique identifier" of the certificate Area, and store the hash value of the certificate to the secure operating system; the signing process generates two sets of important data - the application certificate and the certificate hash value, which provide suppor...

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Abstract

The invention discloses a method for realizing application program safety certification based on a CPU space-time isolating mechanism. The method comprises the following steps: firstly, establishing a credible executing environment with an application program certification component, namely, a safety kernel; secondly, establishing a general running environment for executing an application program; lastly, constructing a safety monitor, switching context between two running environments and running in the CPU safety kernel. The method has the advantages that the hardware-level credible safety certification is supplied through an executing flow of a starting process of a safety enhancing application program; the problems of secret key falsifying and poor timeliness can be effectively solved; the safety of the computer terminal in an application program loading process is promoted within limited time consumption.

Description

technical field [0001] The invention relates to an application program security authentication method, in particular to a method for implementing application program security authentication based on a CPU time-space isolation mechanism, and belongs to the field of application program security authentication methods. Background technique [0002] In the long-term exploration and practice of information security, such a fact has gradually been recognized - more and more security attacks occur on computer terminals. Malicious programs take advantage of the vulnerability of computer terminals to destroy the integrity of applications (modify library files and binary files), run illegal (unauthenticated) programs, and then elevate permissions to achieve the purpose of destroying the system and stealing terminal information. In order to ensure the security of computer terminals, on the one hand, firewalls, intrusion detection and other security protection technologies are used to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/12G06F21/57
CPCG06F21/125G06F21/57
Inventor 王定健袁野吴伟夏常钧符兴斌李锁在孟亚平陶亮
Owner 中软信息系统工程有限公司
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