Download - Privacy Data Sharing Platform
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Privacy Data Sharing Platform
PDSP
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Scenario & Solution
• Situation:• Tom is 78 years old, lives alone in his rented house.• CentreLink has Tom’s most of situation information, but not allowed to
share by law.• Aged care department supply varieties services, e.g. visited care assistant,
but Tom don’t even know where he could ask help from.
• Solution:• User controlled and monitored data sharing.• Instant Message tools supported notification and authorization.• Workflow based data sharing processing.• Policy-based access control on privacy data.• Ted supported authentication.• Integrated Decision Making Model based on Accountability&Reputation.
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Data and Control Flow Framework
Private Data
Host
AccessControl
1. R
eque
st fo
r priv
ate
data 2. Request for approval
3. Approval/Deny
Policy Filtering
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Privacy Data Sharing
• Privacy Data• E.g.Medical,Financial,Contact,Internet
• PD sharing Issues:• Legacy• Security• Preserving
• Technologies:• TED security device• Policy-based Access Control(XACML)• Accountability&Reputation based Decision
Making Model
• Implemented:• User Controlled Access Control• Workflow Framework• Instant Message Tools• Reserved Interface for
• XACML• DMM
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Feature Overview
• Policy based Access Control• 3 Party involved Privacy Data Sharing• Decision Making Model(Accountability&Reputation Based)• Workflow Processing• Instant Message Tools• Digital Signature
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XACML Concept
PolicySet
PoliciesObligations
Rules
Target
Obligations
Condition
Effect
Target
Target
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XACML Data-flow Diagram
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• Policy & PolicySet – combining of applicable policies using CombiningAlgorithm
• Target – Rapidly index to find applicable Policies or Rules• Conditions – Complex boolean expression with many
operands, arithmetic & string functions• Effect – “Permit” or “Deny”• Obligations – Other required actions• Reference:
• Sun XACML Implementation v 1.2 (http://sunxacml.sourceforge.net/)
• XACML Documents(http://www.oasis-open.org/committees/xacml/)
• XACML Tutorial with Usecase
Who can access what information
C:\Documents and Settings\jia020\Desktop
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XML Data Format
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Procedure & Interface
• Login(Ind,Org,Admin) • Subscribe(Ind)• Query(Org)• Review(Admin)• Policy checking and content filtering(Sys)• Message(Ind)• Authorisation(Ind)• Get Released Result (Org)
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Login
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Subscribe
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Query
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Review
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Admin workflows
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Receive Messages
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Message Approve
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Task Manage
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Released Result
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Released Result In GoogleMap