Page Realization -Bilinear Map Let a bilinear map tuple be(a, 9, 9, G1, G2, Gr, e), where G1, G2(G1 and G2 are not the same group)and GT are multiplicative cyclic groups of prime order g, lql= k, and g is a random generator of G1, 9 is a random generator of G2. The mapping e: G1 X G2,Gr has three properties (1)Bilinearity: for all a, bER Z,e(9,9)=e(g, 9);(2) No on-degeneracy:e(g, 9)+IGr, where lGr is the unit of gT; (3) Computability: e can be efficiently computed
Page . Realization – Bilinear Map
Contents Cloud data TenantGuard 3> Data Obliviate File System for Intel SGX 上海廴大字
Contents 2 1 Cloud data TenantGuard 3 A Data Obliviate File System for Intel SGX
Paper Structure Background of TenantGuard Architecture of tenantguard Key Ideas of Tenant Guard Application of TenantGuard to Open Stack
Paper Structure – Background of TenantGuard – Architecture of TenantGuard – Key Ideas of TenantGuard – Application of TenantGuard to OpenStack
Highlights Tenant Guard, a VM-level network isolation verification system Pairwise reachability for over 25K VMs in 3s Built on Open Stack, a popular cloud management platform Based on a hierarchical model for virtual networks Leveraging efficient data structures, incremental verification and parallel computation
Highlights
Isolation breaches Isolation Breaches is one of the biggest Security Concerns in Cloud Open Stack real word vulnerabilities ossA2014-008 Any tenant is able create a port on another tenant's router! eported: 22. 10.2013 03.20 OSSA 2015-021] Security group rules are not eftective on instances immediately Reported: 02.09.20I5 Fied:l1092015
Isolation Breaches is one of the Biggest Security Concerns in Cloud. Isolation Breaches