VANET Security through Group Broadcast Encryption
نویسندگان
چکیده
منابع مشابه
Security Notions for Broadcast Encryption
This paper clarifies the relationships between security notions for broadcast encryption. In the past, each new scheme came with its own definition of security, which makes them hard to compare. We thus define a set of notions, as done for signature and encryption, for which we prove implications and separations, and relate the existing notions to the ones in our framework. We find some interes...
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We present new techniques for achieving adaptive security in broadcast encryption systems. Previous work on fully collusion resistant broadcast encryption with short ciphertexts was limited to considering only static security. First, we present a new definition of security that we call semi-static security and show a generic “two-key” transformation from semi-statically secure systems to adapti...
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Broadcast encryption (BE) schemes allow a sender to securely broadcast to any subset of members but requires a trusted party to distribute decryption keys. Group key agreement (GKA) protocols enable a group of members to negotiate a common encryption key via open networks so that only the members can decrypt the ciphertexts encrypted under the shared encryption key, but a sender cannot exclude ...
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Vehicular Ad-hoc network (VANET) is constructed with vehicles and roadside infrastructure. Vehicle location and speed information is collected continuously to manage the VANET communication. On-Board Unit (OBU) processes the data from the various sensors on the inside of the cars, and there are conditions of the vehicles. An on-board unit (OBU) is responsible for the communication with external...
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We propose two schemes for efficient broadcast key establishment that enables a sender to communicate to any subset of the user-base by allowing a small ratio of free-riders. The schemes do not require stateful receivers and one scheme is unconditionally secure. The free-riders are unable to learn from the past whether they might become free-riders for a certain transmission again. We present a...
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ژورنال
عنوان ژورنال: Journal of Computer and Communications
سال: 2020
ISSN: 2327-5219,2327-5227
DOI: 10.4236/jcc.2020.88003