Aggregate-signcryption for securing smart camera IoT applications

Smart cameras are considered as key sensors in Internet of Things (IoT) applications ranging from home to city scales. Since these cameras often capture highly sensitive information, security is a major concern. An elliptic curve (EC) based signcryption achieves resource-efficiency by performing data encryption and signing in a single step. In this work, we present aggregate-signcryption which extends the EC-based signcryption approach to a cluster-based multi-camera setup. The signcrypted data from the smart cameras within a cluster is aggregated on a specific node called cluster head. Aggregatesigncryption reduces the communication overhead and requires fewer steps for the unsigncryption as compared to individual signcryption.