首页>
外国专利>
SECURE KEY ESTABLISHMENT METHOD USING A KEY AGREEMENT MECHANISM BASED ON PKI
SECURE KEY ESTABLISHMENT METHOD USING A KEY AGREEMENT MECHANISM BASED ON PKI
展开▼
机译：基于PKI的密钥协商机制的安全密钥建立方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: A security key setting method using a key sharing mechanism based on a public key is provided to set up a security key and to maintain security of data or a key. CONSTITUTION: An AMI(Advanced Metering Infrastructure) server receives a first message including first, second random values generated in a data collection device and encrypted with a public key and verifies a certificate(S140). The AMI server transmits a second message including the first random value included in the first message and third and fourth random values and encrypted with a public key. The AMI server generates a first security key to be used in encrypted communication with the data collection device from the second random value included in the first message and the fourth random value when the third random value is received from the data collection device after transmitting the second message (S160,S165). [Reference numerals] (30) Data collection equipment; (50) AMI server; (S105) Cert_S storage; (S110) Cert_B storage; (S125) Cert_S effectiveness verification; (S130) R_B, k_B generation T_1=E_PKS(ID_B, r_B, k_B); (S140) Cert_B effectiveness storage; (S145) R_S,k_S generation T_2=E_PKB(ID_S, r_B, r_S, k_S); (S170) KEY_BS using password communication
展开▼
