Enhancement A5/1 stream cipher algorithm as lightweight generator
Nibras Hadi Jawad, Lamyaa Fahem Katran, Salah Abdulhadi Albermany, Sabreen J. Bani · AIP conference proceedings · 2024
One of the oldest well-known algorithms that works on encrypting wireless communications and that does not depend on large resources is the A5/1 algorithm and it is considered one of the light algorithms.In this research, we relied on a proposal of an algorithm taken from A5/1 in its design structure, but it differs in the essence of the connection.Due to the large size of the generated key and the difficulty of observing it, it was relied on the case study by taking an approximate sample similar to the original, the s box is used to generate the random bits of the resulting key.Good results were obtained and faster than the original algorithm.