Teleporting content over network using hash matches
US10628382B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2017 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Files, e.g., disk-image files can be teleported from a source node of a network to a target node in that a copy of file can be assembled at least in part using file parts found on the target node. Source hashes can be generated based on segments of the source file. The source hashes can be sent by the source node and received by the target node. The target node compares each source hash with target hashes of segments of files on the target node. When a comparison results in a match, the file copy can include a copy of the matching target segment or include a reference to the matching segment. For higher performance, fingerprints of the source hash and the target hashes can be compared, with hash comparisons being performed in the event of a fingerprint match. The target fingerprints can be arranged in a cuckoo filter or other probabilistic filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.