Abstract: The system described may implement a 1-bit protocol for differential privacy for a set of client devices that transmit information to a server. Implementations of the system may leverage specialized instruction sets or engines built into the hardware or firmware of a client device to improve the efficiency of the protocol. For example, a client device may utilize these cryptographic functions to randomize information sent to the server. In one embodiment, the client device may use cryptographic functions such as hashes including SHA or block ciphers including AES. Accordingly, the system provides an efficient mechanism for implementing differential privacy.

Abstract: A monitoring, detection and alarm for water systems includes a plurality of sensing components for detecting the presence of target contaminants in water and for measuring the overall quality of the water. The apparatus contains water sensing components, a database for storing sensor data and processors for data analysis using artificial intelligence. The apparatus provides control logic to take responsive action based on the results of the detection of the target contaminants. Responsive action includes, but is not limited to, generation of reports and alarm signals that are delivered in near real-time to users of the system.