发明名称 Wireless communications providing interoperability between devices capable of communicating at different data rates
摘要 A primary key may be used for a first attempt by a remote node to decrypt incoming messages from a master. In the event the decrypt attempt fails at the remote node, a secondary key may then be used to attempt to decrypt the message. Initially, the primary and secondary keys may be the same. A field tool, such as a hand-held programming unit operated by a technician at a remote node location, may change the secondary key, but may not cause any change to the primary key. The secondary key may remain so changed until a new primary key is verified and/or authenticated and the secondary key is overwritten with the new primary key. The primary key may only be changed/set by the master via an encrypted request. A technician may not use a field tool to change a primary key. IA/flu I co 0 U-) o W 0)
申请公布号 AU2011200109(A1) 申请公布日期 2011.08.18
申请号 AU20110200109 申请日期 2011.01.13
申请人 ELSTER SOLUTIONS, LLC 发明人 BORLESKE, ANDREW J.;BRIAN, BRENT;MASON, ROBERT T.
分类号 H04W56/00;H04L7/00 主分类号 H04W56/00
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