Session cipher key distributing method and system

Session cipher key distributing method and system

  • CN 101,383,698 A
  • Filed: 10/29/2008
  • Published: 03/11/2009
  • Est. Priority Date: 10/29/2008
  • Status: Active Application
First Claim
Patent Images

1. , a kind of session cipher key distributing method may further comprise the steps:

  • Receive first secret key request message that calling party'"'"'s communication terminal sends, comprise the first interim PKI that calling party'"'"'s communication terminal generates in this first secret key request message;

    Generate communication session keys according to described first secret key request message, and send to the callee'"'"'s communication terminal that communicates with calling party'"'"'s communication terminal and to encrypt notification message;

    Receive callee'"'"'s communication terminal according to second secret key request message that described encryption notification message sends, comprise the second interim PKI that callee'"'"'s communication terminal generates in this second secret key request message;

    Utilize the described first interim PKI and the described second interim PKI that described communication session keys is encrypted respectively, and will comprise that the first key response message of utilizing behind the described first interim public key encryption beams back calling party'"'"'s communication terminal, and will comprise that the second key response message of utilizing behind the described second interim public key encryption beams back callee'"'"'s communication terminal.

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