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Watch an 11-minute conference presentation from USENIX Security '24 exploring DMAAUTH, a novel hardware-software co-design architecture that provides enhanced protection against DMA attacks. Learn how researchers from Zhejiang University developed a lightweight solution that outperforms traditional IOMMU security measures through Arithmetic-capable Pointer AuthentiCation (APAC) technology. Discover the implementation details of this cross-architecture solution tested on FPGA hardware boards, ARM, and RISC-V emulators, demonstrating superior speed and security while maintaining transparency across devices, drivers, and IOMMU. Understand how DMAAUTH achieves byte-grained spatial protection and temporal protection through its innovative combination of APAC, per-mapping metadata, and a dedicated hardware Authenticator positioned on the bus to authenticate DMA transactions.
