Random number generation, regeneration and tracking method based on non-uniform random source in group, and electronic device

Abstract

The invention discloses a random number generation, regeneration and tracking method based on a non-uniform random source in a group, and an electronic device. The group is composed of a trusted administrator and a plurality of generators, and the administrator maintains the group to authenticate and track the identities of the generators; fingerprints are taken as an example, each generator in the group can independently operate a fuzzy extractor, and obtains the same almost uniform random character string by utilizing the fingerprints of the generators; any generator can generate an almost uniform random character string for the group by using the fingerprint of the generator, and other generators can recover the character string through the fingerprints of themselves; and the same random source can be repeatedly used, and a plurality of random character strings are obtained. For any two legal generators, the recovered random strings are the same; the opponent cannot distinguish the generator of the extracted random string, cannot forge the group random string extracted by each generator, and cannot distinguish the extracted string and the real random string in the probability polynomial time; and an administrator may track each generator.

Description

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AI Technical Summary

Benefits of technology

The technical effect of this invention relates to creating new random string data that can be restored if needed for use by other valid generator systems or devices.

Problems solved by technology

This patented technical problem addressed in the patents relates to improving the efficiency at which data protection mechanisms like passwords work on electronic devices without compromising privacy concerns associated with sensitive personal attributes like credit card numbers. Current methods require manual effort and may result in inconsistencies between different members of the organization due to factors like lack of consistence across organizational boundaries.

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