# US 10,311,250 B2 · Method and system for managing personal information within independent computer systems and digital networks

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- Number: US 10,311,250 B2
- Document ID: US10311250B2
- Status: Granted
- Kind: B2
- Application number: 15/480,313
- Filed: 2017-04-05
- Published: 2017-10-05
- Granted: 2019-06-04
- Earliest claimed: 2016-04-05
- Assignees: Vchain Technology Limited
- Applicants: Vchain Technology Limited
- Inventors: Irra Ariella Khi; Aleksandr Gorelik
- Web page: https://patentgrep.com/patent/US10311250B2

## CPC

- G06F 21/6245: {Protecting personal data, e.g. for financial or medical purposes}
- G06F 16/903: Querying (for retrieval from the web G06F16/953)
- G06F 16/9035: Filtering based on additional data, e.g. user or group profiles
- G06F 21/602: {Providing cryptographic facilities or services}
- H04L 9/3218: {using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs}
- H04L 9/3236: {using cryptographic hash functions}
- H04L 9/3247: {involving digital signatures}
- H04L 63/06: {for supporting key management in a packet data network (cryptographic mechanisms or cryptographic arrangements for key management H04L9/08)}
- H04L 63/08: {for authentication of entities (cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32)}
- H04L 63/10: {for controlling access to devices or network resources}
- H04L 63/12: {Applying verification of the received information (cryptographic mechanisms or cryptographic arrangements for data integrity or data verification H04L9/32)}
- H04W 12/02: Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
- H04W 12/08: Access security
- H04W 12/10: Integrity
- H04L 9/50: {using hash chains, e.g. blockchains or hash trees}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A system and method for reliably and securely recording and storing all attributes of personal identification, for the identification and authorization of individual identity as well as attributes relating to it and personal data including but not limited to individual's physical description, bank details, travel history, etc. (the “Personally Identifiable Information “PII”). PII can be difficult to manage in networks where correlation between data sources is required. Thus, in some embodiments, the system combines a distributed database to create a framework for a robust security. The system manages the distributed database to associate transactions, or actions, using data, digital signatures, and/or cryptographic keys, which can be unique to an individual.

## Claims

### Claim 1

A personal identifiable information system for data management and authentication within independent computer systems and digital networks, the system comprising:
a local client device for receiving raw data representing the personal identifiable information and comprising a cryptographic processor for processing the raw data through a cryptographic function to generate cryptographic data;
a storage system communicatively coupled with the local client device and comprising one or more storage nodes on a remote server, the storage system being unique from the local client device, the one or more storage nodes for receiving and storing sub-portions of the cryptographic data, and wherein the raw data is never stored on the storage system; and
a ledger database for parallel storage of one or more ledger transactions associated with any event associated with the storage system, wherein each ledger transaction comprises a record hash of core data and metadata, the core data and metadata being extracted from the cryptographic data.

### Claim 2 (depends on 1)

The system of claim 1, wherein the ledger database comprises at least one of a public blockchain and a private blockchain.

### Claim 3 (depends on 1)

The system of claim 1, wherein said storage comprises at least one of a distributed database, a distributed hash table, a peer-to-peer hypermedia distributed storage, an operating memory, a centralized database, and a cloud-based storage.

### Claim 4 (depends on 1)

The system of claim 1, wherein a selected storage node maintains only a unique sub-portion of a complete set of the cryptographic data.

### Claim 5 (depends on 4)

The system of claim 4, wherein a total number of sub-portions of the cryptographic data is less than a total number of storage nodes.

### Claim 6 (depends on 1)

The system of claim 1, wherein the cryptographic function comprises at least one of a secure hash algorithm-2 and a secure hash algorithm-3.

### Claim 7 (depends on 1)

The system of claim 1, wherein said local client device further generates a pair of cryptographic keys comprising a public key and an associated private key.