DABC: A dynamic ARX-based lightweight block cipher with high diffusion

• DOI: 10.3837/tiis.2023.01.009
• Publication Date: 2023-02-03T02:29:11Z
• Authors: Wen Chen; Lang Li; Ying Guo

The ARX-based lightweight block cipher is widely used in resource-constrained IoT devices due to fast and simple operation of software hardware platforms.However, there are three weaknesses ciphers.Firstly, only half the data can be changed one round.Secondly, traditional ciphers static structures, which provide limited security.Thirdly, it has poor diffusion when initial plaintext key all 0 or 1.This paper proposes a new dynamic overcome these weaknesses, called DABC.DABC change round, overcomes first weakness.This combines generalized two-dimensional cat map construct permutation layer P1, improves uncertainty between different rounds DABC.The non-linear component round function alternately uses NAND gate AND increase complexity attack, third weakness.Meanwhile, this round-based architecture DABC conducted ASIC FPGA implementation.The results show that less resource high throughput.Finally, safety evaluation good avalanche effect security.