Patent · US Expired

Exclusive encryption

US7047420B2 · kind B2 · utility

16Cited by
51References
41Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 17, 2001
Grant dateMay 16, 2006
Priority date
Expiry dateMay 7, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2221/2107
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An exclusive encryption system is established using multiple computing devices. The exclusive encryption system allows for the exclusion of certain plaintext (e.g., by one of the computing devices) and ciphertext (e.g., by another of the computing devices) while at the same time maintaining the privacy created by the encryption (e.g., so the other computing device cannot see the plaintext). The exclusive encryption system may be implemented as part of a serverless distributed file system with directory entries (e.g., file names or folder names) being the plaintext, or alternatively as part of other systems.

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