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DCC-128: a hardware-oriented lightweight chaotic stream cipher
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DOI：10.1007/s11071-023-09035-z.png)
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Abstract
En 中文
With the rapid development of the Internet of Things (IoT), IoT applications face more and more security threats. However, IoT devices are resource-constrained and need lightweight encryption schemes. In this paper, a new lightweight stream cipher DCC-128 based on the nonlinear chaotic coupling function is proposed. Inspired by a dynamically coupled chaotic map, a state-driven approach to changing the chaotic coupling structure is used to enhance security. The proposed chaotic function has good dynamical performance and can be easily implemented on the hardware platforms, thus it is used as the main nonlinear drive of DCC-128. With simple operations such as modular addition, shift, and XOR, DCC-128 has high implementation efficiency and is a hardware-oriented design. The security analysis indicates that common attacks are not likely to affect its security. The hardware performance is compared with the lightweight cryptographic standards and the latest lightweight ciphers. Moreover, the recommended randomness test shows good statistical properties, we believe that DCC-128 is less vulnerable to distinguishing attacks. All results show that DCC-128 is a competitive lightweight stream cipher for resource-constrained devices.
Keywords:
Lightweight cryptography
Stream cipher
Hardware implementation
Chaotic map
Coupling
Journal
IF:
6
Papers:
1.4W
Citations:
4.1W
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