Method and system for generating CTF dynamic Flag based on transparent proxy
A transparent proxy and dynamic technology, applied in the field of information processing, can solve the problems of high resource consumption, inability to support a large number of users, double the workload of operation and maintenance, etc., and achieve the effect of facilitating operation and maintenance personnel
Active Publication Date: 2018-11-13
南京赛宁信息技术有限公司 +1
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Problems solved by technology
The existing method can effectively alleviate cheating when the team members are limited and resources are sufficient, but the disadvantage is that it cannot support a large number of users, consumes a lot of resources, and doubles the workload of operation and maintenance.
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[0034] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.
[0035] A method for generating a CTF dynamic Flag based on a transparent proxy disclosed in an embodiment of the present invention mainly includes a first-time access process, a game question access process, and an answer verification process.
[0036] The first visit process mainly includes:
[0037] (1) The user accesses the online competition platform through a browser;
[0038] (2) When the online competition platform receives the first access request from the user's browser, it will generate...
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The invention discloses a method and system for generating a CTF dynamic Flag based on a transparent proxy. The method comprises the steps that a user unique Token is planted in a user browser, an online competition platform introduces a user-accessed competition problem address to a proxy server, the proxy server transmits a request to a competition problem server, after competition problem content returned by the competition problem server is received, the Flag in the competition problem content is reversibly encrypted by adopting an original Flag and the user Token to generate a new Flag toreplace the Flag; after the online competition platform receives the Flag submitted by a user, reversibly encrypted inverse operation is carried out on the Flag submitted by the user and the Flag ofan original competition problem, and a user answer result is obtained according to a result of the inverse operation. Compared with the prior art, the method and system for generating the CTF dynamicFlag based on the transparent proxy has the advantages that multiple sets of competition problem environments do not need to be arranged for a same competition problem, a dynamic Flag in a set of environments can be achieved, anti-cheating and log recording can be achieved under the condition that the user does not perceive in the whole process, thereby greatly reducing the competition problem resource consumption and operation and maintenance workload.
Description
technical field [0001] The invention relates to a method and system for generating a CTF dynamic Flag based on a transparent agent, and belongs to the technical field of information processing. Background technique [0002] CTF (Capture The Flag) is generally translated as capture the flag in Chinese, which is a popular form of information security competition. The general process is that participating teams first obtain a string of strings or other content with a certain format from the competition environment given by the organizer through offensive and defensive confrontation, program analysis, etc., and submit it to the organizer. To get points. For the convenience of calling, we call such content "Flag". There are three main types of CTF competition modes, problem solving mode, attack and defense mode and mixed mode. [0003] 1. Problem-solving mode (Jeopardy) [0004] In the problem-solving mode CTF competition system, participating teams can participate through th...
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IPC IPC(8): A63F13/75A63F13/77G06F21/60G06F21/62
CPCA63F2300/552A63F2300/5586A63F13/75A63F13/77G06F21/602G06F21/6218
Inventor 王国伟高庆官王珩
Owner 南京赛宁信息技术有限公司