具有保密性和真实性的密钥分配 ()Eki [N1 Da (2)Exr,[N1‖N2] Initiator Responder A B (3)Ex7n[N2 (4)EKUBLEKR [K II Schoal as Cauter igure 10.6 Public-Key Distribution of Secret Keys fy@ustc.edu.cn 现代密码学理论与实践 11/59mfy@ustc.edu.cn 现代密码学理论与实践 11/59