The Host Identity Protocol (HIP) has emerged as the most suitable solution to uniquely identify smart devices in the mobile and distributed Internet of Things (IoT) systems, such as smart cities, homes, cars, and healthcare. The HIP provides authentication methods that enable secure communications between HIP peers. However, the authentication methods provided by the HIP cannot be adopted by the IoT devices with limited processing power because of the computation-intensive cryptographic operations involved in hash generation, signature validation, and session key establishment. Moreover, IoT devices cannot utilize the HIP as is to communicate securely in the low power and lossy networks as there is a considerable communication overhead, such as packet fragmentation and reassembly, for exchanging certificates over a lossy link. Additionally, the use of static host identifiers makes IoT devices vulnerable to cyber espionage and user-targeted attacks. In this article, we propose an authentication scheme, P-HIP, that protects the identity privacy of an IoT device by enabling the device to compute and use unique host identifiers from networks to networks and sessions to sessions. To make the HIP suitable for resource-constrained IoT devices, P-HIP provides methods that unburden IoT devices from computation-intensive operations, such as modular exponentiation, involved inmore »
VibeRing: Using vibrations from a smart ring as an out-of-band channel for sharing secret keys
With the rapid growth in the number of IoT devices that have wireless communication capabilities, and sensitive information collection capabilities, it is becoming increasingly necessary to ensure that these devices communicate securely with only authorized devices. A major requirement of this secure communication is to ensure that both the devices share a secret, which can be used for secure pairing and encrypted communication. Manually imparting this secret to these devices becomes an unnecessary overhead, especially when the device interaction is transient. In this paper, we empirically investigate the possibility of using an out-of-band communication channel -- vibration, generated by a custom smart ring, to share a secret with a smart IoT device. This exchanged secret can be used to bootstrap a secure wireless channel over which the devices can communicate. We believe that in future IoT devices can use such a technique to seamlessly connect with authorized devices with minimal user interaction overhead. In this paper, we specifically investigate (a) the feasibility of using vibration generated by a custom wearable for communication, (b) the effect of various parameters on this communication channel, and (c) the possibility of information manipulation by an adversary or information leakage to an adversary. For this more »
- Award ID(s):
- 1329686
- Publication Date:
- NSF-PAR ID:
- 10196427
- Journal Name:
- Proceedings of the International Conference on the Internet of Things (IoT)
- Sponsoring Org:
- National Science Foundation
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Accepted Manuscript1.0
- Publisher's Version of Record
- https://doi.org/10.1145/3410992.3410995
