{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T20:02:58Z","timestamp":1790280178783,"version":"4.1.0"},"reference-count":43,"publisher":"Optica Publishing Group","issue":"20","license":[{"start":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T00:00:00Z","timestamp":1790208000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T00:00:00Z","timestamp":1790208000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62375245"],"award-info":[{"award-number":["62375245"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Natural Science Foundation of China","award":["61975185"],"award-info":[{"award-number":["61975185"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2026,10,5]]},"abstract":"<jats:p>Existing deep-learning-enabled optical scattering encryption schemes lack effective task-level access control, preventing independent multi-task encryption and decryption. Furthermore, these schemes typically treat the trained single neural network as a global decryption key, introducing critical security vulnerabilities once the model is leaked. To achieve secure multi-task optical scattering encryption and reliable task-model matching, we propose a dual-channel scheme integrating physical marker authentication and a residual-network matching module. Task-specific physical signatures are created by the spatial positions of scattering media and dedicated marker images, while complementary binary matrices serve as digital keys, establishing a hybrid physical-digital access control system. After that, the optical setup generates a marker speckle and an interference-fused speckle carrying both plaintext and marker information; the final ciphertext is constructed by extracting pixels from the corresponding speckle pairs using customized digital keys. Decryption follows two-level verification: physical authentication using the correct binary matrix, followed by activation of the corresponding task-specific residual network for high-quality reconstruction. Experiments demonstrate reliable task-model matching across multiple independent task groups, robust security against key leakage and unauthorized decryption, and effective resistance to cross-verification attacks. This work establishes, what is believed to be, a new paradigm with strengthened physical security for multi-task optical scattering encryption.<\/jats:p>","DOI":"10.1364\/oe.613813","type":"journal-article","created":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T08:00:09Z","timestamp":1789372809000},"page":"37492","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Speckle-based cryptosystem with physically associated authentication and task-dedicated model matching"],"prefix":"10.1364","volume":"34","author":[{"given":"Hanlu","family":"Zhang","sequence":"first","affiliation":[{"name":"Zhejiang University of Science and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lexin","family":"Yang","sequence":"additional","affiliation":[{"name":"Zhejiang University of Science and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Menghao","family":"Jia","sequence":"additional","affiliation":[{"name":"Zhejiang University of Science and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chengbin","family":"Wang","sequence":"additional","affiliation":[{"name":"Zhejiang University of Science and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9613-203X","authenticated-orcid":true,"given":"Bijun","family":"Xu","sequence":"additional","affiliation":[{"name":"Zhejiang University of Science and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3297-8081","authenticated-orcid":true,"given":"Xiaogang","family":"Wang","sequence":"additional","affiliation":[{"name":"Zhejiang University of Science and Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,9,24]]},"reference":[{"key":"oe-34-20-37492-R1","doi-asserted-by":"publisher","first-page":"767","DOI":"10.1364\/OL.20.000767","type":"journal-article","volume":"20","author":"Refregier","year":"1995","journal-title":"Opt. 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