US 11,962,681 B2 · Symmetric encryption for private smart contracts among multiple parties in a private peer-to-peer network

Abstract

Features for providing a secure method of symmetric encryption for private smart contacts among multiple parties in a private peer-to-peer network. The features include a master key representing a unique blockchain ledger. The master key may be shared among multiple participants in a private peer-to-peer network. Sharing of the master key may include communicating the master key in an encrypted message (e.g., email) using public key infrastructure (PKI). In some implementations, more complex distribution features may be includes such as quantum entanglement. The features support instantiation of a smart contract using a specific master key. The request may be submitted as an entry to the ledger with appropriate metadata and/or payload information for identifying and processing the request.

Claims19

Dependent claims

A system for secure distributed electronic ledgering, the system comprising:

a distributed electronic ledger storing a set of records, wherein at least one record in the set of records includes a request for a service, the request encrypted with an encryption key;
a computer-readable memory storing executable instructions;
and
one or more computer processors in communication with the computer-readable memory, wherein the one or more computer processors are configured to execute the executable instructions to at least:
decrypt the request for the service using the encryption key;
transmit the request to a service provider;
receive a response from the service provider;
insert at least a portion of the response into the record;
encrypt the record including the portion of the response using the encryption key;
and
store the record in the distributed electronic ledger.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/295,694Filed 4 Apr 2023 · continuation

Priority

30 Jun 2017

Published

US 2024/0048357 A18 Feb 2024

Granted

16 Apr 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 9/0637
Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation: modes of operation, e.g. cipher…
H04L 9/3239
Using cryptographic hash functions: involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
H04L 9/0822
Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely…: using…
H04L 9/0891
Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords: revocation or update of secret…

Family

Application62/527,579Us provisional application · filed 30 Jun 2017

Application16/022,354Parent of this continuation · filed 28 Jun 2018

Application16/941,142Parent of this continuation · filed 28 Jul 2020

US 10,735,183 B1Parent of this continuation · filed 4 Aug 2020

US 2024/0048357 A1Pre-grant publication · published 8 Feb 2024

US 11,652,607 B1Parent of this continuation

US 11,962,681 B2This patent

From the US filing history. Foreign family members aren’t listed.

Symmetric encryption for private smart contracts among multiple parties in a private peer-to-peer network

Life of this patent

Symmetric encryption for private smart contracts among multiple parties in a private peer-to-peer network

Life of this patent

Abstract

Claims19