Provenance meta-data, also known as data pedigree, is a set of data that explains how information was derived. A number of provenance systems exist. They are useful for finding the sources of errors; allowing system users to have confidence in the materials; and potentially providing legal justification for decisions. An open issue has been how to properly secure this meta-data, in a manner that extends beyond trusting the information providers. Blockchain technology provides a universally accessible ledger of transactions that is the basis of the current generation of crypto-currencies. The blockchain structure provides guarantees of system integrity that make it exceedingly difficult for malicious insiders to tamper with data. Our project adapts blockchain concepts to securing provenance meta-data. The talk we present will include the following topics:
More information about this presentation is on the event page.
- A brief survey of provenance systems that discusses security needs;
- The presentation of three illustrative use-cases that motivate the development of a provenance security framework; • A short tutorial on the structure of the blockchain;
- A brief overview of the current generation of crypto-currencies;
- An explanation of what aspects of crypto-currencies are ill-suited to our application;
- An overview of our system architecture, emphasizing two important points:
- Our ability to integrate existing tools, and
- The portions of the system that we are developing;
- A discussion of our current status; and
- Plans for the next phase.
Presentations are recorded and include time for questions with the audience.
Join CTSC's discuss mailing list for information about upcoming events. To submit topics or requests to present, contact us here. Archived presentations are available on our site under "Past Events."