Terminal access trusted PDA method and access system

Abstract

The present invention provides a method of terminal accessing credible PDA and accessing system. The accessing method is authenticating identity of the terminal before accessing credible PDA, comparing the present platform state of the credible PDA with the credible state value of the pre-stored terminal platform, if passing the comparison, the terminal and the credible PDA are linked. The access system includes a credible PDA, a terminal having credible platform module, an interface server of the credible PDA running, an interface client running on the terminal, a certificate server, an integrity reference server. The invention avoids the data damage caused by the safety problem of the terminal self, effectively prevents information being stolen, and also effectively prevents identity counterfeit, platform state counterfeit, greatly improves security of the data sharing.

Description

technical field [0001] The invention relates to the technical field of computer information security, and mainly relates to an access method and an access system for realizing the credibility evaluation of the terminal when the terminal accesses the trusted PDA and ensuring the security of data and content on the trusted PDA. Background technique [0002] Currently PDA (Personal Digital Assistant) has become a personal digital terminal, which contains a large amount of private information and key data. The trusted PDA itself can guarantee that the hardware and software of the PDA are not attacked. However, when the trusted PDA is connected to an external computing terminal, the operating environment of the external terminal is often unreliable, for example, the terminal is implanted with viruses, Trojan horses, malicious codes, etc., lead to the leakage of private information and key data on the PDA. Since the PDA generally needs to share and synchronize data with the termi...

AI Technical Summary

Problems solved by technology

The trusted PDA itself can guarantee that the hardware and software of the PDA are not attacked. However, when the trusted PDA is connected to an external computing terminal, the operating environment of the external terminal is often unreliable, for example, the terminal is implanted with viruses, Trojan horses, malicious codes, etc., leading to the leakage of private information and key data on the PDA

Since the PDA generally needs to share and synchronize data with the terminal, even if the operating environment of the trusted PDA itself is safe and reliable, the private data of the PDA is often leaked when the PDA is sharing data due to the insecurity of the terminal connected to it.

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