Information sharing methods and systems

Patent metadata

Field	Value
Publication number	US-11954686-B2
Application number	US-202117364719-A
Country	US
Kind code	B2
Filing date	Jun 30, 2021
Priority date	Aug 31, 2020
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

Examples in this application disclose information sharing methods, media, and systems. One example computer-implemented method includes receiving, by a trusted execution environment (TEE), a first sharing request from a first institution and a second sharing request from a second institution, where the first sharing request comprises a user identity of a first user and first anti-money laundering (AML) risk information and the second sharing request comprises a user identity of a second user and second AML risk information, comparing the user identity of the first user with the user identity of the second user, in response to that the user identity of the first user is the same as the user identity of the second user, combining the first AML risk information and the second AML risk information, and sending the combined first AML risk information and second AML risk information to the first institution and the second institution.

First claim

What is claimed is:

1. A computer-implemented method, comprising:
receiving, by a trusted execution environment (TEE), a first sharing request from a first institution, wherein the first sharing request comprises a user identifier of a first user and first anti-money laundering (AML) risk information of the first user, and wherein the user identifier of the first user comprises a first digest value obtained through performing a hash calculation on one or more pieces of information of the first user;
receiving, by the TEE, a second sharing request from a second institution, wherein the second sharing request comprises a user identifier of a second user and second AML risk information of the second user, and wherein the user identifier of the second user comprises a second digest value obtained through performing the hash calculation on one or more pieces of information of the second user, the second institution being different from the first institution;
determining, by the TEE, that the first sharing request comprises at least one first risk label and that the second sharing request comprises at least one second risk label, each of the at least one first risk label and the at least one second risk label comprising at least one of a corresponding suspicious transaction report (STR) crime label or a corresponding money-laundering risk level label, the at least one first risk label being labeled by the first institution to the first user based on at least one of basic data of the first user or historical transactions of the first user, the at least one second risk label being labeled by the second institution to the second user based on at least one of basic data of the second user or historical transactions of the second user;
determining, by the TEE, that the first sharing request comprises the first AML risk information and the second sharing request comprises the second AML risk information based on the at least one first risk label and the at least one second risk label, the first AML risk information corresponding to the user identifier of the first user and comprising information associated with the at least one first risk label, the second AML risk information corresponding to the user identifier of the second user and comprising information associated with the at least one second risk label;
in response to determining that the first sharing request comprises the first AML, risk information and the second sharing request comprises the second AML risk information, determining, by the TEE, whether the user identifier of the first user matches the user identifier of the second user based on the first digest value and the second digest value;
in response to that the user identifier of the first user matches the user identifier of the second user, combining, by the TEE in plaintext form, the first AML risk information and the second AML risk information for the user identifier, as a combined first AML risk information and second AML risk information;
sending, by the TEE, a combination result that comprises the combined first AML risk information and second AML risk information to each of the first institution and the second institution by using an oracle mechanism; and
sending, by the TEE, a proof of the combination result to a blockchain network, wherein the proof comprises a verifiable claim comprising a signature of the TEE and a third digest value obtained through performing a hash calculation on the combination result.

2. The computer-implemented method of claim 1 , wherein the user identifier of the first user comprises an account registered by the first user at the first institution or assigned to the first user by the first institution in response to an operation initiated by the first user at the first institution, and wherein the user identifier of the second user comprises an account registered by the second user at the second institution or assigned to the second user by the first institution in response to an operation initiated by the second user at the first institution.

3. The computer-implemented method of claim 1 , wherein the first sharing request comprises a signature of the first institution, and the second sharing request comprises a signature of the second institution.

4. The computer-implemented method of claim 1 , wherein the TEE is deployed with a smart contract, wherein the smart contract is configured to receive at least two sharing requests from at least two institutions.

5. The computer-implemented method of claim 1 , comprising:
verifying, by the TEE, an identity of the first institution and an identity of the second institution.

6. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:
receiving, by a trusted execution environment (TEE), a first sharing request from a first institution, wherein the first sharing request comprises a user identifier of a first user and first anti-money laundering (AML) risk information of the first user, and wherein the user identifier of the first user comprises a first digest value obtained through performing a hash calculation on one or more pieces of information of the first user;
receiving, by the TEE, a second sharing request from a second institution, wherein the second sharing request comprises a user identifier of a second user and second AML risk information of the second user, and wherein the user identifier of the second user comprises a second digest value obtained through performing the hash calculation on one or more pieces of information of the second user, the second institution being different from the first institution;
determining, by the TEE, that the first sharing request comprises at least one first risk label and that the second sharing request comprises at least one second risk label, each of the at least one first risk label and the at least one second risk label comprising at least one of a corresponding suspicious transaction report (STR) crime label or a corresponding money-laundering risk level label, the at least one first risk label being labeled by the first institution to the first user based on at least one of basic data of the first user or historical transactions of the first user, the at least one second risk label being labeled by the second institution to the second user based on at least one of basic data of the second user or historical transactions of the second user;
determining, by the TEE, that the first sharing request comprises the first AML, risk information and the second sharing request comprises the second AML risk information based on the at least one first risk label and the at least one second risk label, the first AML risk information corresponding to the user identifier of the first user and comprising information associated with the at least one first risk label, the second AML risk information corresponding to the user identifier of the second user and comprising information associated with the at least one second risk label;
in response to determining that the first sharing request comprises the first AML risk information and the second sharing request comprises the second AML risk information, determining, by the TEE, whether the user identifier of the first user matches the user identifier of the second user based on the first digest value and the second digest value;
in response to that the user identifier of the first user matches the user identifier of the second user, combining, by the TEE in plaintext form, the first AML risk information and the second AML risk information for the user identifier, as a combined first AML risk information and second AML risk information; and
sending, by the TEE, a combination result that comprises the combined first AML risk information and second AML ri

Assignees

• Alipay Hangzhou Inf Tech Co Ltd

Inventors

• Wang Xinmin
• Yang Renhui
• Chen Yuan
• Yang Wenyu
• Qian Feng
• Guo Qianting
• Li Shubo

Classifications

• G06Q20/4016 Primary

  involving fraud or risk level assessment in transaction processing · CPC title

• G06Q20/10

  specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems · CPC title

• G06Q20/38215

  Use of certificates or encrypted proofs of transaction rights · CPC title

• G06Q20/3825

  Use of electronic signatures · CPC title

• G06Q20/3827

  Use of message hashing · CPC title