Caching Techniques for Security Metadata in Integrity-Protected Fabric-Attached Memories

EAI Endorsed Transactions on Security and Safety

卷:7

Mazen Alwadi¹  Amro Awad¹ 

[1] University of Central Florida, Electrical and Computer Engineering Department, Orlando, FL, United States;

关键词: fabric-attached memory;    secure memory;    memory-centric;    encrypted memory;    integrity tree;   

DOI  :  10.4108/eai.13-7-2018.165516

来源: DOAJ

【 摘 要 】

The constant need for larger memories and the diversity of workloads have driving the system vendorsaway from the conventional processor-centric architecture into a memory-centric architecture. Memorycentric architecture, allows multiple computing nodes to connect to a huge shared memory pool andaccess it directly. To improve the performance, each node uses a small local memory to cache the data.These architectures introduces several problems when memory encryption and integrity verification areimplemented. For instance, using a single integrity tree to protect both memories can introduce unnecessaryoverheads. Therefore, we propose Split-Tree, which implements two separate integrity tree for each memory.Later, we analyze the system performance, and the security metadata caches behavior when separate treesare used. We use the gathered insights to improve the security metadata caching for the separate trees andultimately improve the system performance.

【 授权许可】

Unknown