Importance

Loading Importance Indicators...

Abstract

A first user contacts a verification host and claims that an item of the first user's information is in a predefined range with relevant information submitted. The verification host verifies the first user's claim, and provides a code generator to the first user if the claim is valid. The first user generates a code by running the code generator with an input only known to the first user. The code generator combines an input determined by the verification host and the input by the first user into a combined input, encrypts the combined input, and generates a code based on the encrypted combined input. The generated code contains a first portion, which is determined by the verification host and contains no any first user's information, and a second portion, which is related to the first user's input when running the code generator. Only the first user knows that the generated code belongs to the first user. A second user contacts the verification host to obtain a code verifier for a need to verify that the item of the first user's information is in the predefined range. The verification host provides a code verifier to the second user. When the second user needs to verify that an item of the first user's information is in a predefined range, the second user only needs to verify the relevant code submitted by the first user by running the code verifier. The code verifier decrypts the code submitted by the first user, compares a part of the code verifier determined by the verification host, which contains no any first user's information, with the first portion of the decrypted code, and return a result to the second user. The first user's identity and privacy are fully protected during the code verification process with the method and system disclosed here.

Loading the Abstract Image...

First Claim