首页>
外国专利>
PAIR-WISE KEYING FOR TUNNELED VIRTUAL PRIVATE NETWORKS TECHNICAL FIELD
PAIR-WISE KEYING FOR TUNNELED VIRTUAL PRIVATE NETWORKS TECHNICAL FIELD
展开▼
机译:隧道虚拟虚拟专用网的双密钥加密技术领域
展开▼
页面导航
摘要
著录项
相似文献
摘要
In an embodiment, a method for generating and distributing keys retains the scalability of a group VPN, but also provides true pair-wise keying such that an attacker who compromises one of the devices in a VPN cannot use the keys gained by that compromise to decrypt the packets from the other gateways in the VPN, or spoof one of the communicating gateways. The method is resistant to collusion when co-operating attackers overtake several VPN gateways and observe the keys stored in those gateways. In an embodiment, a VPN gateway comprises a cryptographic data processor configured to encrypt and to decrypt data packets; group key management logic; and Key Generation System logic. In one approach a gateway performs, in relation to adding a group member, receiving in a security association (SA) message secret data for use in the KGS; and derives keys for secure communication with one or more peer VPN gateways using the secret data.
展开▼