1 research outputs found
Optimal Checkpointing for Secure Intermittently-Powered IoT Devices
Energy harvesting is a promising solution to power Internet of Things (IoT)
devices. Due to the intermittent nature of these energy sources, one cannot
guarantee forward progress of program execution. Prior work has advocated for
checkpointing the intermediate state to off-chip non-volatile memory (NVM).
Encrypting checkpoints addresses the security concern, but significantly
increases the checkpointing overheads. In this paper, we propose a new online
checkpointing policy that judiciously determines when to checkpoint so as to
minimize application time to completion while guaranteeing security. Compared
to state-of-the-art checkpointing schemes that do not account for the overheads
of encrypted checkpoints we improve execution time up to 1.4x.Comment: ICCAD 201