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passiv liveness ko'rinmas, lekin modelga ko'proq mas'uliyat yuklaydi.","Hujum turi muhim: bosma surat, ekrandan qayta o'ynatish, niqob va deepfake — har biri boshqa signalda ushlanadi.","Amalda gibrid oqim yutadi: passiv asosiy bo'ladi, aktiv esa faqat shubhali holatda so'raladi.",[30,33,37,39,45,60,63,65,71,75,78,80],{"kind":31,"text":32},"paragraph","Yuzni taniydigan model mukammal ishlashi mumkin, lekin kamera oldida tirik odam emas, telefon ekranidagi surat turgan bo'lsa, uning aniqligi ahamiyatsiz. Shuning uchun biometrik oqimning eng nozik joyi tanish emas — tiriklikni tekshirish.",{"kind":34,"id":35,"text":36},"heading","two-approaches","Ikki yondashuv, ikki xil narx",{"kind":31,"text":38},"Aktiv liveness foydalanuvchidan aniq harakat so'raydi: boshni burish, ko'z qisish, ekrandagi nuqtani kuzatish. Passiv liveness hech narsa so'ramaydi — u kadrdagi tekstura, yorug'lik tarqalishi, chuqurlik izlari va mikroharakatlarni tahlil qiladi.",{"kind":40,"items":41},"list",[42,43,44],"Aktiv: hujumchi uchun qiyin, lekin har bir qo'shimcha qadam ro'yxatdan o'tishda 4–9% foydalanuvchini yo'qotadi.","Passiv: o'rtacha 1.2 sekundda tugaydi va foydalanuvchi uchun butunlay ko'rinmas bo'ladi.","Gibrid: passiv birinchi ishlaydi, aktiv qadam esa faqat ishonch bahosi past chiqqanda so'raladi.",{"kind":46,"items":47},"stats",[48,51,54,57],{"value":49,"label":50},"99.6%","Liveness aniqligi",{"value":52,"label":53},"1.2s","O'rtacha tekshiruv vaqti",{"value":55,"label":56},"4","Hujum sinfi qamrab olingan",{"value":58,"label":59},"40M+","Tekshirilgan urinish",{"kind":34,"id":61,"text":62},"attack-surface","Qaysi hujum qaysi to'siqqa uriladi",{"kind":31,"text":64},"Prezentatsiya hujumlarini to'rt sinfga bo'lib qaraymiz. Har bir sinf boshqa signalda ushlanadi — shuning uchun bitta model hammasini yopa olmaydi.",{"kind":40,"items":66},[67,68,69,70],"Bosma surat: qog'oz teksturasi va yorug'lik qaytishi passiv modelda darhol ko'rinadi.","Ekrandan qayta o'ynatish: moire naqshi, kadr chastotasi va ekran yorqinligi ajratib turadi.","Silikon niqob: chuqurlik xaritasi emas, aynan mikromimikaning yo'qligi xabar beradi.","Deepfake oqimi: kamera darajasidagi tekshiruv va vaqt bo'yicha izchillik tahlili kerak.",{"kind":72,"text":73,"cite":74},"quote","Liveness savoli «bu odam tirikmi?» emas. Savol shunday: kameradan kelgan signal haqiqiy odamdan, haqiqiy vaqtda kelganmi?","RS-ID biometrik yadro jamoasi",{"kind":34,"id":76,"text":77},"choosing","Integratsiyada nimani tanlash kerak",{"kind":31,"text":79},"Agar oqimingiz ommaviy ro'yxatdan o'tish bo'lsa, passivdan boshlang — bu yerda konversiya hal qiladi. Agar oqim yuqori xatarli operatsiya bo'lsa (yirik o'tkazma yoki hujjatni imzolash), aktiv qadamni shart qilib qo'yish o'zini oqlaydi.",{"kind":81,"title":82,"text":83},"callout","Amaliy maslahat","Ishonch bahosi chegarasini bitta raqamga qotirmang. 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