Iqembu labacwaningi abavela e-David Ben-Gurion University (Israel) lenze indlela entsha yokuhlasela komuntu wesithathu ekuvumela ukuthi ubuyisele ukude amanani okhiye bokubethela ngokusekelwe ku-ECDSA kanye ne-SIKE algorithms ngokuhlaziywa kwevidiyo ekhamera ithwebula inkomba ye-LED yesifundi sekhadi elihlakaniphile noma idivayisi exhunywe kuhabhu ye-USB eyodwa ene-smartphone eyenza imisebenzi nge-dongle.
Indlela isekelwe eqinisweni lokuthi phakathi nezibalo, kuye ngemisebenzi eyenziwa ku-CPU, ukusetshenziswa kwamandla kuyashintsha, okuholela ekuguquguqukeni okuncane ekukhanyeni kwezinkomba zamandla e-LED. Ushintsho ekukhanyeni, okuhlobana ngokuqondile nezibalo ezenziwe, lungabanjwa kumakhamera wesimanje wokubhekwa kwevidiyo yedijithali noma amakhamera we-smartphone, futhi ukuhlaziywa kwedatha evela kukhamera kukuvumela ukuthi ubuyisele ngokungaqondile ulwazi olusetshenziswe ezibalweni.
Ukuze kweqe umkhawulo wokunemba kwesampula okuhlotshaniswa nokurekhoda kuphela amafreyimu angu-60 noma angu-120 ngomzuzwana, imodi yesikhashana ye-parallax (i-rolling shutter) esekelwa amanye amakhamera yasetshenziswa, ebonisa izingxenye ezihlukene zento eshintsha ngokushesha ngezikhathi ezihlukene kuhlaka olulodwa. Ukusetshenziswa kwale modi kukuvumela ukuthi uhlaziye izilinganiso zokukhanya ezifika ezinkulungwaneni ezingama-60 ngomzuzwana lapho uthwebula ikhamera ye-iPhone 13 Pro Max enemvamisa yokuqala ye-120 FPS, uma isithombe senkomba ye-LED sithatha lonke uhlaka (i-lens idalulwe. phambi kwelensi ukuze usondeze). Ukuhlaziywa kucabangele ushintsho kuzingxenye zombala ezingazodwana (RGB) zenkomba, kuye ngezinguquko ekusetshenzisweni kwamandla kwephrosesa.
Ukuze kubuyiselwe okhiye, kwasetshenziswa izindlela ezaziwayo zokuhlasela kwe-Hertzbleed ku-SIKE key encapsulation mechanism kanye ne-Minerva ku-algorithm yesiginesha yedijithali ye-ECDSA, zashintshwa ukuze zisetshenziswe ngomthombo ohlukile wokuvuza ngokusebenzisa iziteshi zezinkampani zangaphandle. Ukuhlasela kusebenza kuphela uma usebenzisa i-ECDSA esengozini kanye nokuqaliswa kwe-SIKE kulabhulali ye-Libgcrypt kanye ne-PQCrypto-SIDH. Isibonelo, amalabhulali athintekile asetshenziswa ku-smartphone ye-Samsung Galaxy S8 kanye namakhadi ahlakaniphile ayisithupha athengwe ku-Amazon kubakhiqizi abahlanu abahlukene.
Abacwaningi benze izivivinyo ezimbili eziyimpumelelo. Kweyokuqala, bekungenzeka ukuthi kutholwe ukhiye we-256-bit ECDSA ekhadini elihlakaniphile ngokuhlaziya ividiyo yesikhombi se-LED somfundi wekhadi elihlakaniphile, ethwetshulwe ngekhamera yokuqapha ividiyo exhunywe kunethiwekhi yomhlaba wonke, etholakala kumamitha ayi-16 ukusuka kudivayisi. . Ukuhlasela kuthathe cishe ihora futhi kudinga ukuthi kudalwe amasignesha edijithali angu-10.
Esivivinyweni sesibili, sikwazile ukubuyisela ukhiye we-378-bit SIKE osetshenziswe ku-smartphone ye-Samsung Galaxy S8 ngokusekelwe ekuhlaziyweni kwevidiyo eqoshiwe yenkomba yamandla ye-Logitech Z120 USB izipikha ezixhunywe kuhabhu ye-USB efanayo lapho i-smartphone yakhokhiswa. Ividiyo ithathwe nge-iPhone 13 Pro Max. Phakathi nokuhlaziywa, ukuhlaselwa kwe-ciphertext kwenziwe ku-smartphone (ukuqagela kancane kancane okusekelwe ekuphatheni i-ciphertext nokuthola ukukhishwa kwayo), lapho kwenziwa imisebenzi engu-121 ngokhiye we-SIKE.
Source: opennet.ru