Improved Remote Attestation Mechanism Based on Group Signatures and Unbalanced Merkle Hash Tree

摘要

In order to improve efficiency, privacy protecting and scalability of remote attestation, based on a group signature scheme and a grouping method, an improved RAMT (Remote Attestation based on Merkle Hash Tree) method was presented with considering a frequency of a trusted entity accessed. Furthermore, it was proved theoretically and experimentally. The mechanism reduced dramatically storage space which was used for storing measurement log of executables, hide information of specific software and cut down a length of the authentication path. Results show the ability to protect privacy is enhanced. And the efficiency and the scalability of the remote attestation are improved highly.