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Secured map messages for telecommunications networks

  • US 20020052200A1
  • Filed: 09/07/2001
  • Published: 05/02/2002
  • Est. Priority Date: 09/11/2000
  • Status: Active Grant
First Claim
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1. A method of sending a mobile application part (MAP) protocol message between a first network element of a first telecommunications network and a second network element of a second telecommunications network, the method comprising:

  • at the first network element using a master security association to derive a connection-specific security association for use by the first network element;

    including a parameter obtained from the connection-specific security association in an encrypted/authenticated MAP message sent from the first network element to the second network element;

    at the second network element, upon receipt of the MAP message using the master security association to derive a connection-specific security association for use by the second network element;

    using the connection-specific security association for use by the second network element to decrypt/decode the MAP message.

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