Accelerating Silent Witness Storage

We propose hardware acceleration for a new edge computing abstraction called Silent Witness. This embodies severe asymmetry in the ease of write versus read operations. Surveillance data from one or more video cameras are continuously encrypted and recorded, but decrypting, processing, transmission that only occurs under stringent privacy controls. For search workloads such system, decode-enabled storage alleviates scalability bottleneck imposed by frequent decoding data. Our experiments show throughput improvements up to 3.5× typical