I-chip decryption iyaziwa nangokuthi yi-decrypyption eyodwa-chip (IC decryption). Njengoba ama-chip we-microcomputer ayi-microcomputer eyodwa kumkhiqizo osemthethweni abethelwe, uhlelo alunakufundwa ngokuqondile usebenzisa uhlelo lwezinhlelo.
Ukuze uvikele ukufinyelela okungagunyaziwe noma ukukopishwa kwezinhlelo ze-Chip ze-microcontroller, ama-micrococtollers amaningi abethelwe ukukhiya ama-bits noma amabhayithi abethelwe ukuvikela izinhlelo ze-on-chip. Uma i-Encryption Lock Bit inikwe amandla (ikhiywe) Ngesikhathi sokuhlelwa, uhlelo ku-microcontroller alukwazi ukufundwa ngokubhala kahle okuhle, okubizwa ngokuthi ukubethela nge-microcontroller noma ukubethela kwe-chip. Abahlaseli bakwaMCU basebenzisa imishini ekhethekile noma eyenziwe ngezinto ezenzelwe wena, baxhaphaza ama-hoopholes noma amaphutha wesoftware ekwakhiweni kwe-MCU Chip, nangezindlela ezahlukahlukene zobuchwepheshe, bangakhipha imininingwane ebalulekile ku-chip futhi bathole uhlelo lwangaphakathi lwe-MCU. Lokhu kubizwa ngokuthi ukuqhekeka kwe-chip.
I-Chip Decryption indlela
Ukuhlaselwa kwe-1.Software
Le ndlela imvamisa isebenzisa izinhlaka zokuxhumana ze-processor kanye nokuxhaphaza amaphrothokholi, ama-algorithms afihliwe, noma izimbobo zokuphepha ezikulawa ma-algorithms ukwenza ukuhlaselwa. Isibonelo esijwayelekile sokuhlaselwa kwesoftware okuphumelelayo kungukuhlaselwa kwe-Atret Atrel At89C Series Microcontroller. Umhlaseli wasebenzisa ama-loopholes ekwakhiweni kokulandelana kokusebenza kokususa kwalolu chungechunge lwe-microcomputers eyodwa. Ngemuva kokususa i-Encryption Lock, umhlaseli wamisa ukusebenza okulandelayo kokususa imininingwane yohlelo lwe-Chip, ukuze i-microcomputer ye-chip eyodwa ye-single-chip iba yi-microcomputer engabhalwanga eyodwa, bese usebenzisa umhleli wokufunda uhlelo lwe-on-chip.
Ngokwesisekelo sezinye izindlela zokubethela, eminye imishini ingathuthukiswa ukubambisana ne-software ethile ukuze yenziwe ukuhlaselwa kwesoftware.
2. Ukuhlaselwa kokutholwa kwe-elekthronikhi
Le ndlela ngokuvamile iqapha izici ze-analog yawo wonke amandla nokuxhumeka kwe-processor ngesikhathi sokusebenza okujwayelekile ngesinqumo esijwayelekile ngesinqumo esiphakeme, futhi kusebenza ukuhlaselwa ngokubheka izici zayo zemisebe ye-electromagnetic. Ngoba i-microcontroller iyithuluzi le-elektroniki elisebenzayo, lapho ikhipha imiyalo ehlukene, ukusetshenziswa kwamandla okuhambisanayo nakho kuyashintsha ngokufanele. Ngale ndlela, ngokuhlaziya nokuthola lezi zinguquko ezisebenzisa amathuluzi akhethekile wokulinganisa ama-elekthronikhi kanye nezindlela zezibalo, imininingwane ethile ebalulekile ku-microcontroller ingatholakala.
3. I-Fault General Technology
Le ndlela isebenzisa izimo ezisebenzayo ezingejwayelekile zokusebenzisa iprosesa bese inikeza ukufinyelela okwengeziwe kokwenza ukuhlaselwa. Ukuhlaselwa okukhiqizwayo okusetshenziswa kakhulu kwamaphutha kufaka phakathi ama-voltage surtes kanye nokugadla kwewashi. Ukuhlaselwa kwamandla aphansi kanye nokuhlasela okuphezulu kungasetshenziselwa ukukhubaza amasekethe wokuvikela noma ukuphoqa iprosesa ukwenza imisebenzi eyiphutha. I-Clock Transles ingasetha kabusha umjikelezo wokuvikela ngaphandle kokubhubhisa imininingwane evikelwe. Amandla kanye ne-Clock Translents kungathinta ukuqunjelwa kanye nokubulawa kwemiyalo yomuntu ngamunye kwezinye izisebenzi.
4. Ubuchwepheshe Bokuphenya
Ubuchwepheshe ukuveza ngqo i-wiring yangaphakathi ye-chip, bese ubheka, ukukhohlisa, futhi uphazamise i-microcontroller ukufeza inhloso yokuhlaselwa.
Ngenxa yokusebenziseka lula, abantu bahlukanisa amasu amane okuhlasela angenhla abe yizigaba ezimbili, okuhlaselwa okujabulisayo (ukuhlaselwa okubonakalayo (ukuhlaselwa ngokomzimba), lolu hlobo lokuhlasela ludinga ukubhubhisa iphakheji, bese usebenzisa imishini yokuhlola i-semiconductor, ama-microscopes kanye nabaphathi abancane belebhu ekhethekile. Kungathatha amahora noma amasonto ukuqeda. Wonke amasu e-ackroproobing ahlasela ngokuhlasela. Ezinye izindlela ezintathu ukuhlaselwa okungahlaseli, futhi i-microcontroller ehlaselwe ngeke ilinyazwe ngokomzimba. Ukuhlaselwa okungathandeki kuyingozi ikakhulukazi kwezinye izimo ngoba imishini edingekayo yokuhlaselwa okungahlangene ivame ukubalwa futhi ithuthukiswe, ngakho-ke ishibhile.
Ukuhlaselwa okuningi okungathandeki kudinga ukuthi umhlaseli abe nolwazi oluhle lwe-processor kanye nolwazi lwesoftware. Ngokuphambene, ukuhlaselwa okuhlaselayo kokuhlaselayo akudingi ulwazi oluningi lokuqala, kanye nesethi ebanzi yamasu afanayo ngokuvamile angasetshenziswa ngokumelene nemikhiqizo ehlukahlukene. Ngakho-ke, ukuhlaselwa kwe-micrococtollers kuvame ukuqala kusuka ebunjiniyela obungenakuphikwa, futhi isipiliyoni esinqwabelene sisiza ukuthuthukisa amasu wokuhlasela ashibhile futhi asheshayo.