Related Experiment Video
Updated: Jul 16, 2026
07:49
Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
Published on: November 26, 2019
A Dickson polynomial based group key agreement authentication scheme for ensuring conditional privacy preservation
Y Rajkumar1, S V N Santhosh Kumar2
1School of Computer Science Engineering and Information Systems (SCORE), Vellore Institute of Technology, Vellore, Tamil Nadu, India.
Scientific Reports
|February 20, 2025
Summary
A new authentication method for VANETs uses Dickson polynomials for secure, efficient communication. This approach reduces computational and communication costs, enhancing security and privacy in vehicular networks.
Area of Science:
- Computer Science
- Cybersecurity
- Network Security
Background:
- Vehicular Ad hoc Networks (VANETs) face security and privacy risks due to dynamic environments.
- Traditional Group Key Agreement Authentication (GKAA) is resource-intensive with high verification delays and central tendency.
- Existing methods struggle with computational cost, communication overhead, and conditional privacy.
Purpose of the Study:
- To propose a novel, lightweight authentication scheme for VANETs.
- To enhance security, reduce computational and communication costs, and ensure conditional privacy.
- To overcome the limitations of traditional GKAA, including central tendency and high delays.
Main Methods:
- Utilized Dickson polynomials for enhanced security and authentication.
- Implemented a chaotic mapping algorithm for a one-way hash function.
- Employed the Chinese Remainder Theorem (CRT) for distributed group key computation and dynamic updates, avoiding a Trusted Third Authority (TTA).
- Ensured conditional privacy through pseudonym traceability for illicit activities.
Main Results:
- Achieved a 39% improvement in computation cost.
- Reduced communication cost to 672 bits per message.
- Demonstrated lower verification delay compared to traditional schemes.
- Validated security and efficiency using BAN logic and ROR model.
Conclusions:
- The proposed Dickson polynomial-based GKAA scheme offers significant improvements in efficiency and security for VANETs.
- It effectively addresses the limitations of existing authentication methods, providing a lightweight and robust solution.
- The scheme enhances secure data exchange in VANETs while preserving conditional privacy.
Related Concept Videos
01:24Van der Waals Interactions
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.Polar molecules have a partial positive charge on one end and a partial negative charge on the other end of the molecule,...
02:18Network Covalent Solids
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
01:15Thevinin's Theorem
Thévenin's theorem plays a pivotal role in electrical circuit analysis, offering a solution to the challenges posed by variable loads within a circuit. In practical applications, it is common to encounter circuits where certain elements remain fixed while others fluctuate, often referred to as the "load." A typical household electrical outlet serves as a prime example of a variable load, as it can be connected to a variety of appliances, each with its own unique electrical characteristics.
01:14Norton's Theorem
Norton's theorem is a fundamental principle stating that a linear two-terminal circuit can be substituted with an equivalent circuit, which comprises a current source (ⅠN) in parallel with a resistor (RN). Here, ⅠN represents the short-circuit current flowing through the terminals, and RN stands for the input or equivalent resistance at the terminals when all independent sources are deactivated. This implies that the circuit illustrated in Figure (a) can be exchanged with the one depicted in...
01:21Pilot and Numeric Relaying
Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:
01:22Net Change Theorem
The Net Change Theorem is a fundamental principle in calculus that establishes a direct relationship between a function’s rate of change and its accumulated change over an interval. Mathematically, it states that the definite integral of a function's derivative over a given interval [a,b] yields the net change in the original function:This theorem has significant applications in various real-world scenarios, including physics, economics, and engineering. A particularly useful application is in...