KEY MANAGEMENT METHOD
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United States of America Patent
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Issued Date -
Oct 7, 2010
app pub date -
Nov 14, 2008
filing date -
Nov 16, 2007
priority date (Note) -
Abandoned
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Abstract
A key management method, is an enhanced RSNA four-way Handshake protocol. Its preceding two way Handshake processes comprise: 1), an authenticator sending a new message 1 which is added a Key Negotiation IDentifier (KNID) and a Message Integrity Code (MIC) based on the intrinsic definition content of the message 1 to an supplicant; (2), after the supplicant receives the new message 1, checking whether the MIC therein is correct; if no, the supplicant discarding the received new message 1; if yes, checking the new message 2, if the checking is successful, sending a message 2 to the authenticator, the process of checking the new message is the same as checking process for the message 1 defined in the IEEE 802.11i-2004 standard document. The method solves the DoS attack problem of the key management protocol in the existing RSNA security mechanism.
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