Method and system for anonymous directed blockchain transaction

Patent metadata

Field	Value
Publication number	US-12282915-B2
Application number	US-202418605150-A
Country	US
Kind code	B2
Filing date	Mar 14, 2024
Priority date	Dec 22, 2016
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

A method for posting of anonymous directed transaction includes: storing a plurality of entity profiles, each including an entity identifier and a secret value; receiving a transaction request from a first entity, the request including transaction data and a specific entity identifier associated with a second entity; identifying a specific entity profile that includes the specific entity identifier; generating a first hash value via application of one or more hashing algorithms to the transaction data; generating a second hash value via application of one of more hashing algorithms to a combination of the first hash value and the secret value included in the identified specific entity profile; and posting the first hash value and second hash value to a publicly accessible data source.

First claim

What is claimed is:

1. A method for posting an anonymous directed transaction, comprising:
receiving, by a receiving device of the processing server, from a first entity, a transaction request for a transaction with a second entity, wherein the transaction request includes at least transaction data and a specific entity identifier associated with the second entity;
executing, by a hardware processor of the processing server, a query on an entity database to identify a specific entity profile on a basis of the specific entity identifier included in the transaction request received from the first;
generating, by the hardware processor of the processing server, a first hash value for the transaction via application of one or more hashing algorithms to the transaction data included in the transaction request, such that the first hash value is specific to the transaction;
generating, by the hardware processor of the processing server, a second hash for the transaction value via application of one or more hashing algorithms to a combination of the generated first hash value and a secret value included in the identified specific entity profile;
initiating, by the processing server, a payment transaction for payment from the first entity to the second entity;
posting, by a transmitting device of the processing server, at least the generated first hash value and the generated second hash value to a blockchain;
retrieving, by a receiving entity, the generated first hash value and generated second hash value from the blockchain to determine whether the receiving entity was involved in the transaction;
hashing, by the receiving entity, the generated first hash value retrieved from the blockchain using a secret value associated with the receiving entity in order to generate a specialized hash value;
validating, by the receiving entity, that the generated specialized hash is equivalent to the generated second hash value retrieved from the blockchain;
in response to said validation, transmitting, by the receiving entity to the processing server, a message indicating that the receiving entity is associated with the transaction request; and
responsive to receiving the message, transmitting, by the processing server to the receiving entity, a data signal that is superimposed with the transaction data included in the transaction request.

2. The method of claim 1 , wherein the blockchain is stored in a memory of the processing server that is accessible by external computing systems.

3. The method of claim 1 ,
wherein transmitting the message comprises transmitting a data request from the receiving entity.

4. The method of claim 3 , wherein the data request further includes a client certificate and the method further comprises:
verifying, by the hardware processor of the processing server, the client certificate prior to transmission of the transaction data to the receiving entity.

5. The method of claim 1 , wherein the secret value is a random or pseudo random value of at least 128 bits.

6. The method of claim 1 , further comprising:
electronically transmitting, by the transmitting device of the processing server, the transaction data to a third entity.

7. A system for posting an anonymous directed transaction, comprising:
a hardware receiving device of the processing server receiving, from a first entity, a transaction request for a transaction with a second entity, wherein the transaction request includes at least transaction data and a specific entity identifier associated with the second entity;
a hardware processor of the processing server
executing a query on an entity database to identify a specific entity profile on a basis of the specific entity identifier included in the transaction request received from the first entity,
generating a first hash value for the transaction via application of one or more hashing algorithms to the transaction data included in the transaction request, such that the first hash value is specific to the transaction,
generating a second hash value for the transaction via application of one of more hashing algorithms to a combination of the generated first hash value and a secret value included in the identified specific entity profile, and
initiating a payment transaction for payment from the first entity to the second entity;

a hardware transmitting device of the processing server posting at least the generated first hash value and the generated second hash value to a blockchain; and
a receiving entity
retrieving the generated first hash value and the generated second hash value from the blockchain to determine whether the receiving entity was involved in the transaction,
hashing the generated first hash value, retrieved from the blockchain, using a secret value associated with the receiving entity in order to generate a specialized hash,
validating that the generated specialized hash is equivalent to the generated second hash retrieved from the blockchain, value using the generated comparison hash value, and
transmitting, to the processing server, in response to said validation, a message indicating that the receiving entity is associated with the transaction request,

wherein responsive to receiving the message, the hardware processor of the processing server, transmits, to the receiving entity, a data signal that is superimposed with the transaction data included in the transaction request.

8. The system of claim 7 , wherein the blockchain is stored in a memory of the processing server that is accessible by external computing systems.

9. The system of claim 7 , wherein
transmitting the message comprises transmitting a data request from the receiving entity.

10. The system of claim 9 , wherein
the data request further includes a client certificate, and
the hardware processor of the processing server verifies the client certificate prior to transmission of the transaction data to the receiving entity.

11. The system of claim 7 , wherein the secret value is a random or pseudo random value of at least 128 bits.

12. The system of claim 7 , wherein the transmitting device of the processing server is further configured to electronically transmit the transaction data to a third entity.

Assignees

• Mastercard International Inc

Inventors

• Lacoss-Arnold Jason Jay
• Higgins Stephen

Classifications

• G06Q20/027

  involving a payment switch or gateway · CPC title

• G06Q20/3827

  Use of message hashing · CPC title

• G06Q20/382

  insuring higher security of transaction · CPC title

• G06Q2220/00

  Business processing using cryptography · CPC title

• H04L9/0869

  involving random numbers or seeds · CPC title