This article provides an in-depth analysis of the streaming encryption algorithms of the eSTREAM project. This analysis provides a detailed description of the project's purpose, its two main profiles (software and device-specific algorithms), and the selected algorithms....

SM4 is extensively utilized in WLAN WAPI resource-constrained devices. This study introduces an 8-bit iteration structure for SM4 at an ultra-low cost, where key expansion and encryption alternate with only one S-Box. Additionally, to reduce area usage, an on-the-fly key expansion mechanism is...