{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T11:40:08Z","timestamp":1741174808677,"version":"3.38.0"},"reference-count":0,"publisher":"Universitatsbibliothek der Ruhr-Universitat Bochum","issue":"2","license":[{"start":{"date-parts":[[2025,3,4]],"date-time":"2025-03-04T00:00:00Z","timestamp":1741046400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["TCHES"],"abstract":"<jats:p>In this paper, we introduce AETHER, an authenticated encryption scheme that achieves ultra-high throughput and low energy consumption, supporting a 256- bit key and a 128-bit tag. While inspired by an AEGIS-like structure, AETHER stands out with a completely redesigned round-update function. We replace the AES round function with a new inner function optimized for ultra-low latency and energy consumption. This function incorporates Orthros\u2019s S-box and a 16x16 binary matrix from Akleylek et al., leading to a 1.56 times reduction in energy consumption and a 1.25 times reduction in delay compared to the AES round function. To further optimize hardware performance, we design the general construction of the roundupdate function to be more hardware-friendly, allowing parallel execution of the inner function on all 128-bit words, thereby enhancing both throughput and security against collision-based forgery attacks. AETHER achieves a throughput of 2.1 Tbit\/s and an energy consumption of only 204.31 nJ, in the Nangate 15 nm standard cell library and a throughput of 5.23 Tbit\/s and energy consumption of 1.83 nJ using the CNFET-OCL 5nm library, outperforming all existing AEADs.<\/jats:p>","DOI":"10.46586\/tches.v2025.i2.705-742","type":"journal-article","created":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T10:28:51Z","timestamp":1741170531000},"page":"705-742","source":"Crossref","is-referenced-by-count":0,"title":["AETHER: An Ultra-High Throughput and Low Energy Authenticated Encryption Scheme"],"prefix":"10.46586","volume":"2025","author":[{"given":"Subhadeep","family":"Banik","sequence":"first","affiliation":[]},{"given":"Andrea","family":"Caforio","sequence":"additional","affiliation":[]},{"given":"Tatsuya","family":"Ishikawa","sequence":"additional","affiliation":[]},{"given":"Takanori","family":"Isobe","sequence":"additional","affiliation":[]},{"given":"Mostafizar","family":"Rahman","sequence":"additional","affiliation":[]},{"given":"Kosei","family":"Sakamoto","sequence":"additional","affiliation":[]}],"member":"25480","published-online":{"date-parts":[[2025,3,4]]},"container-title":["IACR Transactions on Cryptographic Hardware and Embedded Systems"],"original-title":[],"link":[{"URL":"https:\/\/tches.iacr.org\/index.php\/TCHES\/article\/download\/12062\/11907","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/tches.iacr.org\/index.php\/TCHES\/article\/download\/12062\/11907","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,5]],"date-time":"2025-03-05T10:28:51Z","timestamp":1741170531000},"score":1,"resource":{"primary":{"URL":"https:\/\/tches.iacr.org\/index.php\/TCHES\/article\/view\/12062"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,4]]},"references-count":0,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2025,3,4]]}},"URL":"https:\/\/doi.org\/10.46586\/tches.v2025.i2.705-742","relation":{},"ISSN":["2569-2925"],"issn-type":[{"value":"2569-2925","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,3,4]]}}}