DATA SECURITY AND PRIVACY IN WIRELESS BODY AREA NETWORKS MING LI AND WENJING LOU, WORCESTER...
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Transcript of DATA SECURITY AND PRIVACY IN WIRELESS BODY AREA NETWORKS MING LI AND WENJING LOU, WORCESTER...
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DATA SECURITY AND PRIVACY INWIRELESS BODY AREA
NETWORKS
MING LI AND WENJING LOU, WORCESTER POLYTECHNIC INSTITUTE KUI REN, ILLINOIS INSTITUTE OF TECHNOLOGY
IEEE Wireless Communications • February 2010
報告人 :方良慧教師:溫志煜
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2010/4/26 WSN 2
Outline
• Introduction
• Requirements for Data Security And Privacy In WBANs
• Challenging Practical Issues
• Solutions For Data Security And Privacy In WBANs
• Conclusion
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Introduction (1/3)
• The wireless body area network (WBAN) has emerged as a new technology for e-healthcare.
• WBAN allows the data of a patient’s vital body parameters and movements to be collected by small wearable or implantable sensors.
• And communicated using short-range wireless communication techniques.
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Introduction (2/3)
• This medical information is shared among and accessed by various users.
• Such as healthcare staff, researchers, government agencies, and insurance companies.
• Based on the WBAN, a wide range of novel applications are enabled
• Such as ubiquitous health monitoring (UHM), computer-assisted rehabilitation, emergency medical response system (EMRS) and so on.
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Ubiquitous Health Monitoring (UHM)
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Emergency Medical Response System (EMRS)
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The general architecture of a WBAN
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Introduction (3/3)
• Patient-related data is often stored in a distributive manner; the open and dynamic nature of the WBAN makes the data prone to being lost.
• Therefore, it is equally important to protect patient-related data against malicious modification and to ensure its dependability.
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Requirements for Data Security And Privacy In WBANs
• Threats Faced By The Data Stored Within WBAN– Threats from device compromise– Threats from network dynamics
• In order to prevent the patient-related data from leaking during storage periods, the data needs to be always kept confidential at a node or local server. – The data confidentiality should be resilient to
device compromise attacks.
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Challenging Practical Issues
• Conflict between security and efficiency
• Conflict between security and safety
• Conflict between security and usability
• Requirement for device interoperability
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Solutions For Data Security And Privacy In WBANs
• Secure And Dependable Distributed Data Storage.– Data confidentiality, dependability, and integrity
are three most important requirements for distributed data storage in WBAN.
– In order to enhance the dependability of the data, error-correcting code techniques can be employed to provide redundancy.
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Fine-Grained DistributedData Access Control
• Access Policy
• SKC-Based Schemes– Symmetric Key Cipher
• PKC-Based Schemes– Public Key Cipher
• Anonymity in Access Control
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Access Policy
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SKC-Based Schemes
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PKC-Based Schemes
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Conclusion
• The WBAN is an emerging and promising technology that will change people’s healthcare experiences revolutionarily.
• Data security and privacy in WBANs and WBAN-related e-healthcare systems is an important area, and there still remain a number of considerable challenges to overcome.
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thanks for your attention