Random draw-off method, apparatus and system

Abstract

The invention relates to the technical field of communications, and specifically relates to a random draw-off method, apparatus and system. The method comprises the following steps: receiving a service request sent by a client; creating a first random number, and calculating a feature value of the first random number; feeding the feature value of the first random number back to the client; when digital signature information of first electronic information sent by the client is received, combining the first random number with the digital signature information of the first electronic information to form second electronic information, and carrying out digital signing on the second electronic information; and feeding digital signature information of the second electronic information back to the client. According to the invention, through superposed digital signing for two times, it is difficult to tamper the first random number and a second random number on nodes of data transmission or calculation, it can be ensured to a greater degree that a final draw-off result is not manually interfered, and accordingly, the influence exerted by manual factors on fairness of a probability event is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular, to a random extraction method, device and system. Background technique [0002] At present, in human social activities, some events are based on the results of pure probability, such as lottery winning, commercial promotion lottery activities, lottery distribution when supply resources are in short supply (such as license plate lottery, house lottery lottery, computer distribution when entering school, etc.) bits, etc.). [0003] For such purely probabilistic events, what participants hope most is the transparency and fairness of the event operation process. At present, in order to ensure the fairness of probabilistic events, there are two main types of technical means available: (1) On-site lottery based on special equipment, such as the public lottery lottery for each issue of the welfare lottery. (2) Electronic number lottery based on software technology. You ca...

AI Technical Summary

Problems solved by technology

These two technologies usually require the participation of a third-party notary agency, and the so-called notarization is often a mere formality and cannot ensure its fairness from a technical perspective.

Regardless of whether it is special equipment or the current electronic number lottery based on software technology, the technology itself determines that it is easy to be interfered by human factors, resulting in unfair problems. For example, some manipulations on the equipment make certain numbers more easy to get picked

To sum up, various existing technical means cannot guarantee the fairness of probabilistic events from the technical level

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