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- W2553753337 abstract "In the future Intelligent Vehicles (IV), the application of information and computer-based technologies, advance electronic systems, sensing and intelligent algorithms will incorporate various advance features, such as drive- by-wire, telematics, pre-crash warning, remote diagnostics, highway guidance, traffic alert etc. Introduction of new features, improvement of existing features, updating navigation information etc. will require software update in vehicles' electronic modules from time to time. Remote software upload, using wireless communication links, will facilitate the update process by saving both consumers' and auto manufacturers' time and money. In case of software upload in a large number of vehicles, multicast transmission of software packets will be more efficient than multiple unicast transmissions, since it provides efficient distribution of data to selected groups using fewer network resources. Multicasting transmits one packet that is replicated and distributed by the multicast delivery tree, thereby reduces the communication costs such as bandwidth consumption, sender and router processing and delivery delay. Although software upload in IV should be in secure mode to avoid any future disasters due to malfunctions of the vehicle or to protect the proprietary algorithms from hackers, competitors or people with malicious intent, establishing secure multicast services in wireless mobile network is a challenging issue. In this paper, we present a secure multicast architecture for remote software upload in future intelligent vehicles' electronic modules. During manufacturing, a wireless device will be installed in each vehicle and a set of authentication keys will be given to each vehicle. A copy of these keys will be kept in Auto Company's central server. Each cell phone tower, which will be used as an Intelligent Transportation Tower (ITT) will have a Network Device Monitor (NDM) that will authenticate each vehicle within the multicast group as well as generate and distribute session key to the group members. When an auto company will decide to upload software in a particular group of vehicles, it will generate a set of link keys and send it to the certified software vendor as well as to the ITT using either wired or wireless secure links. Since both the ITT and software vendor will have the same set of link keys, the vendor can send encrypted software packets to the ITT using one of the link keys. The ITT will authenticate each vehicle within its range using vehicle's authentication key and generate a symmetric key pair for future communication with the individual vehicle. The ITT will also select a session key and distribute it along with its public key to each vehicle using the symmetric key pair generated during authentication process. After distributing the session key and the public key, the ITT will send the software packets encrypted with the session key along with the message digest encrypted with the ITT's private key. Since the architecture will use symmetric key encryption technique for software packets encryption and private key encryption technique for digital signature, it will be computationally efficient. This paper provides detail performance analysis in terms of computational time, bandwidth requirement, memory size and length of encryption key required for the proposed technique." @default.
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- W2553753337 date "2005-01-01" @default.
- W2553753337 modified "2023-09-27" @default.
- W2553753337 title "Secure Multicast Protocol for Remote Software Upload in Intelligent Vehicles" @default.
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