1. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
March, 2010
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [High Confidence Wireless Personal Area Networks]
Date Submitted: [14 March, 2010]
Source: [Cao Zhen, Liu Dapeng] Company [China Mobile Communications Corporation]
Address [28 Xuanwumenxi Ave. Beijing , China]
Voice:[ ], FAX: [ ],
Abstract: [Requirement for High Confidence WPANs]
Purpose: [Request the setting up of an interest group which will study the prospects of security and privacy of MAC and PHY]
Notice: This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P
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2. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
March, 2010
High Confidence WPANs Zhen Cao, Dapeng Liu March 14, 2010
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3. Scenarios and Requirements
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doc.: IEEE <doc#>
March, 2010
Scenarios and Requirements
Application scenarios require highly secure and private network environment
Privacy-sensitive application: healthcare, monitoring
Lawful enforcement applications: anti-terrorism, sensitive field monitoring
Requirements:
Both MAC and PHY should be enhanced to accommodate the security aspects
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4. Background: Known Issues
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doc.: IEEE <doc#>
March, 2010
Background: Known Issues
PHY Layer Attacks
Signal jamming
MAC Layer Attacks
Backoff manipulation: attacks to CSMA
Replay attack
Evasdropping attack
PANId conflict attack
GTS attack ……
Most of those attacks cannot be solved by crypto methodology, or higher layer mechanisms
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5. Background: Known Issues
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doc.: IEEE <doc#>
March, 2010
Background: Known Issues
On the IEEE MAC Layer Attacks: GTS Attack
The adversary can learn the GTS slot times through extracting the GTS descriptor(s) from the beacon frame.
Reference: Radosveta Sokullu, “On the IEEE MAC Layer Attacks: GTS Attack”, The Second International Conference on Sensor Technologies and Applications, IEEE SENSORCOMM.2008
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6. Background: CSMA Misbehavior
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doc.: IEEE <doc#>
March, 2010
Background: CSMA Misbehavior
CSMA-CA misbehavior test:
8 nodes sending packets to one receiver
By selecting backoff values from range [0,CW/4 ], the throughput of the other 7 nodes is degraded by as much as 50%.
Reference: Pradeep Kyasanur, Nitin H. Vaidya, “Detection and Handling of MAC Layer Misbehavior in Wireless Networks”, IEEE DSN 2002
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7. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
March, 2010
Why a 15.4 amendment
15.4 defines the MAC and PHY
Security is in its scope
<author>, <company>

8. What the amendment may contain
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doc.: IEEE <doc#>
March, 2010
What the amendment may contain
CSMA security enhancement
GTS security enhancement
Jamming attacks avoidance
Etc…
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9. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
March, 2010
Summary
We need High Confidence WPANs
need to study security aspects of its MAC and PHY sophisticatedly
<author>, <company>