Analysis and improvement of identity-based authenticated key agreement
MU Ning-bo · Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University · 2009
The security of a provably secure identity-based authenticated key agreement protocol in the standard model was analyzed,and it was found that the protocol used in escrowless mode has security flaws.When the private key generator(PKG) is controlled or attacked,all of the session keys can be obtained.To resist this attack,the identity-based authenticated key agreement protocol was improved.This new protocol was proven to be secure in the standard model and has the property of not needing session key escrow.