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Prior remote attestation may not be suitable to scale to the proliferation of IoT device swarms. To this end, we propose a cooperative remote attestation scheme, which validates the security state and verifies the system integrity with the cooperation of neighbor devices. The efficiency of the proposed mechanism is analyzed as a cryptographic protocol and then discussed in terms of security and scalability.
Failures of a small fraction of nodes can lead to breakdown of entire network due to overload or congestion. To understand this crucial feature in networks, we propose a load-dependent cascading failure model according to sandpile principle in this paper. Our model is effective in evaluating the overall aspect of resilience capacity in terms of connectivity efficiency against the spreading of large...
Dynamic churn in overlays is an obvious barrier to gathering collective availability constantly. Despite, a single index was mainly concerned, such as session time or node degree to select most-capable peers in previous works. In this paper, we propose a new utility function in which three metrics, deciding a quality of data dissemination services, are incorporated while considering energy consumption...
Hacking method of decomposing a well-known apps, reverse engineering, inserting malicious code, repackaging of it, and then redistributing it accounts for the majority of Android apps hacking. It is related to the fact that Android App consists of JAVA language and it is easy to apply reverse engineering. We propose a protection solution for this hacking method. It can prevent avoiding App integrity...
A Light Emitting Diodes(LED) lighting is increasingly used because of its low power consumption and long lifetime. Of many power converters, a flyback converter is applied for the LED lightings and has some electrolytic capacitors for stabilizing the output voltage. But the expected life span of the electrolytic capacitors is much shorter than that of the LED elements. It makes the lifetime of the...
With the Internet explosion, the data rate that a networking device needs to support has increased dramatically. A common data rate requirement for routers and switches today is 10 Gigabits per second or higher. Also, the networking device requires the flexibility to perform packet forwarding and other complex functions such as firewall and quality of service. The Ethernet switch or router with a...
IPsec protocol (Security Architecture for the Internet Protocol, 1998) is a set of security extensions developed by the IETF and it provides privacy and authentication services at the IP layer by using modern cryptography. In this paper, we describe both of H/W and S/W architectures of our router system, SRS-10. The system is designed to support high performance routing and IPsec VPN. Especially,...
With the Internet explosion, the data rate that a networking device needs to support has increased dramatically. A common data rate requirement for routers today is 10 Gigabits per second or higher. Also, the networking device requires the flexibility to perform packet forwarding and other complex functions such as firewall and quality of service. The router with a network processor can be a solution...
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