@misc{cryptoeprint:2021:403, author = {Subhadeep Banik and Andrea Caforio and Takanori Isobe and Fukang Liu and Willi Meier and Kosei Sakamoto and Santanu Sarkar}, title = {Atom: A Stream Cipher with Double Key Filter}, howpublished = {Cryptology ePrint Archive, Report 2021/403}, year = {2021}, url = {https://eprint.iacr.org/2021/403}, }