31-10-2016, 04:38 PM
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Trend of Modern IMDs
Multifarious function. It has been integrated into many
IMDs that the flexible therapy configuration, physical
condition monitoring, and diagnostic data stage.
Wireless capability. It is common to find out current IMDs
shipped with wireless communication interface. The frequency
band used by IMDs has been approved by U.S. Federal
Communications Commission and European
Telecommunications Standards Institute.
Large demands. 25 million US citizens depend upon IMDs,
reported in 2001. This demand is excepted to continue
increasing 8.3 percent annually through 2014.
Consider an adversary whose goal is trying to program to or
retrieve data from the IMD without being caught.
Assume the adversary cannot physically measure the patient’s
real-time ECG signals without being detected.
Assume there is no adversary in an emergency situation.
IMDGuard is a novel security scheme for
IMD-Guardian-Programmer infrastructure.
IMDGuard incorporates two techniques tailored to provide
desirable protections for IMDs.
1 ECG-based secure key extraction. It allows the IMD
securely pairs to an legitimate Guardian without any prior
shared secrets.
2 Spoofing-resistant access control. It provides security to
the IMD in normal cases, and only grants accessibility to any
programmer in real emergency