Patent · US Active

Traceable key block-chain ledger

US11736288B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

eBay Inc. · US

Inventors

Michael CHAN · Cupertino, US
Sean R. Embry · San Jose, US
Derek Chamorro · Austin, US
Anuj Kaul · Santa Clara, US
Sahil Chadha · San Jose, US
Nikhil Firke · San Ramon, US

Key dates

Filing date	Jul 29, 2021
Grant date	Aug 22, 2023
Priority date	—
Expiry date	Nov 5, 2041

Classification

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

Abstract

Techniques are shown for key management using a traceable key block-chain ledger involving creating a cryptographic key at a key source, generating a key block on a block-chain ledger corresponding to the cryptographic key, and securely modifying the key block to include metadata describing the key source. The techniques also involve performing a first key transaction with the cryptographic key, generating a first transaction block on the block-chain ledger corresponding to the first key transaction with the cryptographic key, linking the first transaction block to the key block and securely modifying the first transaction block to include metadata describing the first key transaction with the cryptographic key.

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