Patent ID: 11924333
Assignee: CONDUENT BUSINESS SERVICES, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A decentralized ledger-based data access and control system, comprising:
an access control component associated with a decentralized ledger, wherein the access control component determines a validity of a data access request and stores a copy of the decentralized leger;
a client component adapted to interact with the decentralized ledger via the access control component, wherein the client component performs key selection, key splitting/reconstruction, encryption/decryption, and access request generation, wherein the key selection involves randomly selecting a symmetric key, the key splitting/reconstruction involves splitting the symmetric key into partial keys and reconstructing an original symmetric key from a subset of the partial keys or all of the partial keys, the encryption/decryption involves encrypting/decrypting data files and different keys;
a storage component adapted to store data and enable access control services, wherein the storage component includes a group of devices including at least one control device and at least one storage device, wherein the at least one control component reads transactions stored in the decentralized ledger;
wherein the access control component is adapted to manage and assist in enforcement of access control policies created by the client component and the storage component is adapted to follow instructions of the access control component to operate data files under its management;
wherein a faulty node among a plurality of nodes in the decentralized ledger is detectable by having a data owner generate a key proof at a time of encryption, wherein the key proof is usable by individual nodes among the plurality of no des to verify if a key fragment is correct;
the system comprises memory; wherein the client component, the storage component, the access control component is stored on the memory.