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System for ensuring encrypted communication after handover

  • US 8,121,293 B2
  • Filed: 06/23/2008
  • Issued: 02/21/2012
  • Est. Priority Date: 11/28/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus, comprising:

  • a processor configured to compose an integrity protected command message for sending from a radio access network to a multimode mobile station, said integrity protected command message including information relating to the encrypting algorithms supported by a multimode mobile station in a further radio access network, and comprising a payload and a message authentication code.

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