Ib pawg ntawm cov kws tshawb fawb los ntawm David Ben-Gurion University (Israel) tau tsim ib txoj hauv kev tshiab ntawm kev tawm tsam thib peb uas tso cai rau koj kom rov qab tau cov txiaj ntsig ntawm cov yuam sij encryption raws li ECDSA thiab SIKE algorithms los ntawm kev tshuaj xyuas video los ntawm lub koob yees duab uas ntes cov cim LED ntawm daim npav ntse nyeem ntawv lossis lub cuab yeej txuas nrog ib lub hub USB nrog lub xov tooj smartphone uas ua haujlwm nrog lub dongle.
Cov txheej txheem yog raws li qhov tseeb hais tias nyob rau hauv lub chav kawm ntawm kev xam, nyob ntawm seb cov hauj lwm ua nyob rau hauv lub CPU, lub zog noj hloov, uas ua rau me me fluctuations nyob rau hauv lub brightness ntawm lub LED lub hwj chim ntsuas. Cov kev hloov hauv lub ci, uas ncaj qha cuam tshuam nrog cov kev suav ua, tuaj yeem ntes tau ntawm cov koob yees duab digital video soj ntsuam niaj hnub lossis lub koob yees duab smartphone, thiab kev txheeb xyuas cov ntaub ntawv los ntawm lub koob yees duab tso cai rau koj los kho cov ntaub ntawv siv hauv kev suav.
Txhawm rau hla qhov kev txwv ntawm kev ntsuas qhov tseeb cuam tshuam nrog kev sau cia tsuas yog 60 lossis 120 thav duab ib ob, lub sijhawm ntawm lub sijhawm parallax hom (dov shutter) txhawb nqa los ntawm qee lub koob yees duab tau siv, uas qhia txog qhov sib txawv ntawm cov khoom hloov pauv sai ntawm lub sijhawm sib txawv hauv ib lub thav duab. Kev siv hom no tso cai rau koj los tshuaj xyuas txog li 60 txhiab glow ntsuas ib thib ob thaum tua ntawm iPhone 13 Pro Max lub koob yees duab nrog qhov pib zaus ntawm 120 FPS, yog tias daim duab ntawm LED qhov taw qhia nyob hauv tag nrho cov ncej (lub lens raug nthuav tawm. nyob rau hauv pem hauv ntej ntawm lub lens kom zoom nyob rau hauv). Kev tsom xam tau txiav txim siab qhov kev hloov pauv ntawm cov xim ntawm tus kheej (RGB) ntawm qhov taw qhia, nyob ntawm kev hloov pauv ntawm lub zog siv ntawm lub processor.
Txhawm rau rov qab cov yuam sij, cov txheej txheem paub zoo ntawm Hertzbleed tawm tsam ntawm SIKE qhov tseem ceeb encapsulation mechanism thiab Minerva ntawm ECDSA digital kos npe algorithm tau siv, yoog rau kev siv nrog qhov sib txawv ntawm cov dej ntws los ntawm cov neeg thib peb. Qhov kev tawm tsam tsuas yog siv tau thaum siv ECDSA thiab SIKE kev siv tsis zoo hauv Libgcrypt thiab PQCrypto-SIDH cov tsev qiv ntawv. Piv txwv li, cov tsev qiv ntawv cuam tshuam tau siv rau hauv Samsung Galaxy S8 smartphone thiab rau daim npav ntse yuav los ntawm Amazon los ntawm tsib lub tuam txhab sib txawv.
Cov kws tshawb fawb tau ua ob qhov kev sim ua tiav. Hauv thawj qhov, nws muaj peev xwm rov qab tau 256-ntsis ECDSA tus yuam sij los ntawm smartcard los ntawm kev tshuaj xyuas cov yees duab ntawm smartcard nyeem ntawv qhov taw qhia LED, ua rau lub koob yees duab soj ntsuam txuas nrog lub ntiaj teb network, nyob ntawm 16 meters ntawm lub cuab yeej. Qhov kev tawm tsam tau siv sijhawm li ib teev thiab xav kom tsim 10 tus lej kos npe digital.
Hauv qhov kev sim thib ob, nws muaj peev xwm rov qab tau 378-ntsis SIKE tus yuam sij siv ntawm Samsung Galaxy S8 smartphone raws li kev tshuaj xyuas ntawm cov yeeb yaj kiab kaw ntawm lub zog qhia ntawm Logitech Z120 USB hais lus txuas nrog tib lub hub USB los ntawm qhov smartphone tau them. Cov yees duab tau yees duab nrog iPhone 13 Pro Max. Thaum lub sij hawm tsom xam, ib tug ciphertext nres tau ua nyob rau hauv ib tug smartphone (them maj mam xam raws li manipulating lub ciphertext thiab tau txais nws decryption), thaum lub sij hawm uas 121 ua hauj lwm tau ua nrog tus yuam sij SIKE.
Tau qhov twg los: opennet.ru