{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T12:47:47Z","timestamp":1765370867118,"version":"3.46.0"},"publisher-location":"Cham","reference-count":17,"publisher":"Springer Nature Switzerland","isbn-type":[{"value":"9783032133007","type":"print"},{"value":"9783032133014","type":"electronic"}],"license":[{"start":{"date-parts":[[2025,12,11]],"date-time":"2025-12-11T00:00:00Z","timestamp":1765411200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2025,12,11]],"date-time":"2025-12-11T00:00:00Z","timestamp":1765411200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026]]},"DOI":"10.1007\/978-3-032-13301-4_4","type":"book-chapter","created":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T09:12:28Z","timestamp":1765357948000},"page":"70-91","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Refined Linear Approximations for\u00a0ARX Ciphers and\u00a0Their Application to\u00a0ChaCha"],"prefix":"10.1007","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1859-2067","authenticated-orcid":false,"given":"Yurie","family":"Okada","sequence":"first","affiliation":[]},{"given":"Atsuki","family":"Nagai","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8822-5287","authenticated-orcid":false,"given":"Atsuko","family":"Miyaji","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2025,12,11]]},"reference":[{"key":"4_CR1","doi-asserted-by":"publisher","unstructured":"Aumasson, J.-P., Fischer, S., Khazaei, S., Meier, W., Rechberger, C.: New features of latin dances: analysis of salsa, ChaCha, and rumba. In: Nyberg, K. (ed.) FSE 2008. LNCS, vol. 5086, pp. 470\u2013488. Springer, Heidelberg (2008). https:\/\/doi.org\/10.1007\/978-3-540-71039-4_30","DOI":"10.1007\/978-3-540-71039-4_30"},{"key":"4_CR2","doi-asserted-by":"crossref","unstructured":"Bellini, E., Gerault, D., Grados, J., Makarim, R.H., Peyrin, T.: Boosting differential-linear cryptanalysis of ChaCha7 with MILP. IACR Trans. Symmetric Cryptol. (2023)","DOI":"10.46586\/tosc.v2023.i2.189-223"},{"key":"4_CR3","unstructured":"Bernstein, D.J.: Salsa20 specification. eSTREAM Project algorithm description (2005). http:\/\/www.ecrypt.eu.org\/stream\/salsa20pf.html"},{"issue":"2","key":"4_CR4","first-page":"261","volume":"2016","author":"AR Choudhuri","year":"2016","unstructured":"Choudhuri, A.R., Maitra, S.: Significantly improved multi-bit differentials for reduced round salsa and ChaCha. IACR Trans. Symmetric Cryptol. 2016(2), 261\u2013287 (2016)","journal-title":"IACR Trans. Symmetric Cryptol."},{"key":"4_CR5","unstructured":"Coutinho, M., Souza Neto, T.C.: New multi-bit differentials to improve attacks against ChaCha. Cryptology ePrint Archive (2020)"},{"key":"4_CR6","doi-asserted-by":"publisher","unstructured":"Coutinho, M., Souza Neto, T.C.: Improved linear approximations to ARX ciphers and attacks against ChaCha. In: Canteaut, A., Standaert, F.-X. (eds.) EUROCRYPT 2021. LNCS, vol. 12696, pp. 711\u2013740. Springer, Cham (2021). https:\/\/doi.org\/10.1007\/978-3-030-77870-5_25","DOI":"10.1007\/978-3-030-77870-5_25"},{"issue":"3","key":"4_CR7","doi-asserted-by":"publisher","first-page":"18","DOI":"10.1007\/s00145-023-09455-5","volume":"36","author":"M Coutinho","year":"2023","unstructured":"Coutinho, M., et al.: Latin dances reloaded: improved cryptanalysis against salsa and ChaCha, and the proposal of Forr\u00f3. J. Cryptol. 36(3), 18 (2023)","journal-title":"J. Cryptol."},{"issue":"8","key":"4_CR8","doi-asserted-by":"publisher","first-page":"5318","DOI":"10.1109\/TIT.2023.3269790","volume":"69","author":"S Dey","year":"2023","unstructured":"Dey, S., Garai, H.K., Sarkar, S., Sharma, N.K.: Enhanced differential-linear attacks on reduced round ChaCha. IEEE Trans. Inf. Theory 69(8), 5318\u20135336 (2023)","journal-title":"IEEE Trans. Inf. Theory"},{"key":"4_CR9","doi-asserted-by":"publisher","unstructured":"Fl\u00f3rez-Guti\u00e9rrez, A., Todo, Y.: Improved cryptanalysis of ChaCha: beating PNBs with Bit puncturing. In: Fehr, S., Fouque, P.A. (eds.) EUROCRYPT 2025. LNCS, vol. 15061, pp. 427\u2013457. Springer, Cham (2025). https:\/\/doi.org\/10.1007\/978-3-031-91107-1_15","DOI":"10.1007\/978-3-031-91107-1_15"},{"key":"4_CR10","unstructured":"Bernstein, D.J.: ChaCha, a variant of Salsa20. In: Workshop Record of SASC, vol. 8, pp. 3\u20135 (2008)"},{"key":"4_CR11","doi-asserted-by":"publisher","unstructured":"Langford, S.K., Hellman, M.E.: Differential-linear cryptanalysis. In: Desmedt, Y.G. (ed.) CRYPTO 1994. LNCS, vol. 839, pp. 17\u201325. Springer, Heidelberg (1994). https:\/\/doi.org\/10.1007\/3-540-48658-5_3","DOI":"10.1007\/3-540-48658-5_3"},{"key":"4_CR12","series-title":"Lecture Notes in Computer Science","doi-asserted-by":"publisher","first-page":"386","DOI":"10.1007\/3-540-48285-7_33","volume-title":"Advances in Cryptology \u2014 EUROCRYPT \u201993","author":"M Matsui","year":"1994","unstructured":"Matsui, M.: Linear cryptanalysis method for DES cipher. In: Helleseth, T. (ed.) EUROCRYPT 1993. LNCS, vol. 765, pp. 386\u2013397. Springer, Heidelberg (1994). https:\/\/doi.org\/10.1007\/3-540-48285-7_33"},{"key":"4_CR13","doi-asserted-by":"publisher","unstructured":"Nyberg, K., Wall\u00e9n, J.: Improved linear distinguishers for SNOW 2.0. In: Robshaw, M. (ed.) FSE 2006. LNCS, vol. 4047, pp. 144\u2013162. Springer, Heidelberg (2006). https:\/\/doi.org\/10.1007\/11799313_10","DOI":"10.1007\/11799313_10"},{"key":"4_CR14","unstructured":"R\u00f6ck, A., Nyberg, K.: Exploiting linear hull in Matsui\u2019s algorithm 1 (extended version). Cryptology ePrint Archive (2011)"},{"key":"4_CR15","doi-asserted-by":"publisher","unstructured":"Wall\u00e9n, J.: Linear approximations of addition modulo 2$$^{n}$$. In: Johansson, T. (ed.) FSE 2003. LNCS, vol. 2887, pp. 261\u2013273. Springer, Heidelberg (2003). https:\/\/doi.org\/10.1007\/978-3-540-39887-5_20","DOI":"10.1007\/978-3-540-39887-5_20"},{"key":"4_CR16","doi-asserted-by":"publisher","unstructured":"Wang, S., Liu, M., Hou, S., Lin, D.: Moving a step of ChaCha in syncopated rhythm. In: Handschuh, H., Lysyanskaya, A. (eds.) CRYPTO 2023. LNCS vol. 14083, pp. 273\u2013304. Springer, Cham (2023). https:\/\/doi.org\/10.1007\/978-3-031-38548-3_10","DOI":"10.1007\/978-3-031-38548-3_10"},{"key":"4_CR17","series-title":"Lecture Notes in Computer Science","doi-asserted-by":"publisher","first-page":"269","DOI":"10.1007\/978-981-99-8024-6_21","volume-title":"Information Security Applications","author":"R Watanabe","year":"2024","unstructured":"Watanabe, R., Ghafoori, N., Miyaji, A.: Improved differential-linear cryptanalysis of reduced rounds of ChaCha. In: Kim, H., Youn, J. (eds.) WISA 2023. LNCS, vol. 14402, pp. 269\u2013281. Springer, Singapore (2024). https:\/\/doi.org\/10.1007\/978-981-99-8024-6_21"}],"container-title":["Lecture Notes in Computer Science","Progress in Cryptology \u2013 INDOCRYPT 2025"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/978-3-032-13301-4_4","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T09:12:32Z","timestamp":1765357952000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/978-3-032-13301-4_4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,12,11]]},"ISBN":["9783032133007","9783032133014"],"references-count":17,"URL":"https:\/\/doi.org\/10.1007\/978-3-032-13301-4_4","relation":{},"ISSN":["0302-9743","1611-3349"],"issn-type":[{"value":"0302-9743","type":"print"},{"value":"1611-3349","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,12,11]]},"assertion":[{"value":"11 December 2025","order":1,"name":"first_online","label":"First Online","group":{"name":"ChapterHistory","label":"Chapter History"}},{"value":"INDOCRYPT","order":1,"name":"conference_acronym","label":"Conference Acronym","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"International Conference on Cryptology in India","order":2,"name":"conference_name","label":"Conference Name","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"Bhubaneshwar","order":3,"name":"conference_city","label":"Conference City","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"India","order":4,"name":"conference_country","label":"Conference Country","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"2025","order":5,"name":"conference_year","label":"Conference Year","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"14 December 2025","order":7,"name":"conference_start_date","label":"Conference Start Date","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"17 December 2025","order":8,"name":"conference_end_date","label":"Conference End Date","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"26","order":9,"name":"conference_number","label":"Conference Number","group":{"name":"ConferenceInfo","label":"Conference Information"}},{"value":"indocrypt2025","order":10,"name":"conference_id","label":"Conference ID","group":{"name":"ConferenceInfo","label":"Conference Information"}}]}}