Overview - Massachusetts Institute of Technology · Overview ! Use Case ! Decentralized Provenance...

Overview �  Use Case

�  Decentralized Provenance Management Architecture

�  UMA + Provenance Management

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Use Case

Transparent Health http://www.transparent-health.us

Transparent Health http://www.transparent-health.us

�  ‘Accounting of Disclosures’ in EHR systems

Primary Care Provider

Specialist

Insurance Company

Pharmacist Medical Records in a Foreign Country

�  No reliable means of transparency and accountability in health care systems �  How was my health data transferred between one clinic

to another? �  Who looked at my health data? And for what purposes? �  Can I report misuses or seek clarifications on my

medical data? Empower patients through Transparent Medical Record Systems!

Motivations for Transparent Health

Transparent Health Interface

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Auditing Health Info

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The type of information desired after a privacy breach

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0"

2"

4"

6"

8"

10"

12"

14"

16"

18"

who" when" how" where" why" what"

Num

ber'o

f'par,cipan

ts'

Informa,on'desired'in'a'privacy'breach'

Rank"1"

Rank"2"

Rank"3"

Provenance Management

Enabling a Transparent Infrastructure

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Provenance Tracker Network

Provenance Enabled

Client Web Server

Verification Service

Identity VerifiedIdentity

Data Transfer

Provenance Logs Provenance Logs

VerifiedIdentity

PTN Architecture

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Leaf Link

Routing Table Link

Instructions on joining the PTN is available at http://httpa.csail.mit.edu

PTN Node Architecture

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Authentication Processor

Audit Processor

Update Processor

Log Store

Distributed Hash Table Overlay

PTN Node

PTN Wrapper Interface

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Authentication Processor

Audit Processor

Update Processor

Log Store

Distributed Hash Table Overlay

Sensitive Data

Processes

Agents

Usage Restrictions

Identity and Role

Intentions

PTN NodeWeb Application

PTN Wrapper Interface

Why DHTs? �  Incremental scalability

�  High availability

�  Low latency

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Provenance Data Flow

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General Hosptial

Data

prov:Entity

prov:Activity

prov:Agent

Legend

Data Store

http://genhospital/patient/peter/medicalrecord

sameAs

:Treatment_Purposes

:usage_restriction

:MedicalRecord

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:Referral

:Dee

prov:wasAssociatedWith

prov:used

"Doctor":role

2013-09-17:T09:00:00

prov:atTime

General Hosptial

Data

prov:Entity

prov:Activity

prov:Agent

Legend

Data Store :General_

Hospital

prov:actedOnBehalfOf

http://genhospital/patient/peter/medicalrecord

sameAs

:Treatment_Purposes

:usage_restriction

:MedicalRecord

:intention

Provenance Data Flow

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Provenance Data Flow

:Referral

:Dee

:SpecialistCare

prov:wasAssociatedWithprov:wasAssociatedWith

prov:wasInfluencedBy

prov:used prov:used

"Doctor""Specialist" :role

:role

2013-09-17:T09:00:002013-09-19:T10:00:00

prov:atTime prov:atTime

General Hosptial

Data

prov:Entity

prov:Activity

prov:Agent

Legend

Data Store :General_

Hospital

:Star_Hospital prov:actedOnBehalfOf

prov:actedOnBehalfOf

:Steven

http://genhospital/patient/peter/medicalrecord

sameAs

:Treatment_Purposes

:usage_restriction

:MedicalRecord

:intention

:intention

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Provenance Data Flow

:Referral

:Dee

:SpecialistCare

prov:wasAssociatedWithprov:wasAssociatedWith

prov:wasInfluencedBy

prov:used prov:used

"Doctor""Specialist" :role

:role

2013-09-17:T09:00:002013-09-19:T10:00:00

prov:atTime prov:atTime

General Hosptial

Data

Star Hospital

Data

prov:Entity

prov:Activity

prov:Agent

Legend

Data Store :General_

Hospital

:Star_Hospital prov:actedOnBehalfOf

prov:actedOnBehalfOf

:DerivedMedicalRecord

:Steven

prov:generated

prov:wasDerivedFrom

http://genhospital/patient/peter/medicalrecord

sameAs

http://starhospital/patient/peter/medicalrecord

sameAs

:Treatment_Purposes

:usage_restriction

:MedicalRecord

:usage_restriction

:intention

:intention

Provenance Creation Sequence

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Data Consumer Data Provider

Provenance Tracker Network

Data Consumer Data Provider

Provenance Tracker Network

Authentication Request

Auth ProtocolWebID, OAuth2.0.

Verification Agent

Verification Agent

Credential Check

Usage Restrictions Options

Usage Intentions

Provenance Log

Usage Aware Log

Data Request

Verified Credentials

Provenance Retrieval Sequence

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Data Owner Data Provider

Provenance Tracker Network

Data Provider Provenance Tracker Network

Authentication Request

Auth ProtocolWebID, OAuth2.0.

Verification Agent

Verification Agent

Credential Check

Provenance Log for D

Audit Request for D

Verified Credentials

Data Consumer

Questions

get D

Data ConsumerData Owner

Visualization of Provenance Log

ClarificationsProvenance Log

Provenance Log

PTNs won’t solve all your problems…

�  Data Owner �  Mis-reporting of usage resulting in denial of service

attacks

�  Data Consumer �  In fraudulent or illegal use of data, the data

consumers won’t label the use as such

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UMA + Provenance Management

Discussion