Patent · US Active

Dynamic access control on blockchain

US11153092B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION · AU

Inventors

Mark Staples · Cambridge, US
Paul Rimba · Canberra, AU

Key dates

Filing date	Aug 30, 2017
Grant date	Oct 19, 2021
Priority date	—
Expiry date	Mar 30, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

This disclosure describes dynamic access control using capabilities (via dynamic access control interface (150)) on a blockchain system (180). The blockchain data structure is a time-stamped list of blocks, chained together cryptographically. In this disclosure, capabilities can be recorded on a blockchain system (via capabilities storage (170)) and thus access propagation is known. This makes revocation of access achievable by recording a new transaction, which in effect removes the previous authorization. There will be no change to transaction history and instead a new transaction records (170) the current status of the capability. An example implementation on a blockchain system (180) is given in Ethereum, which allows programs called “smart contracts” to run as transactions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.