Chip decryption inozivikanwa zvakare seyisingazive-chip decryption (Ic Decryption). Sezvo iyo imwechete-chip microcomputer chips mune yepamutemo chigadzirwa chakanyorwa, chirongwa hachigone kuverenga zvakananga kushandisa programmer.
Kuti udzivise kusabvumidzwa kusabvumirana Kana iyo encryption yekukiya zvishoma inogoneswa MCU varatidzi vanoshandisa zvishandiso zvakakosha kana zvekuzvigadzira-zvigadzirwa, zvinokatyamadza zvisina kuremara muMCU chip Izvi zvinonzi chip kupaza.
Chip decryption nzira
1.Software Attack
Iyi nzira inowanzo shandisa processor kutaurirana nzvimbo uye kushandisa protocols, encryption algorithms, kana maburi ekuchengetedza mune idzi algorithms kuita kurwiswa. Muenzaniso wakajairika wekurwiswa kwesoftware kurwiswa ndiko kurwiswa kwekutanga ATMEL AT89C Sericortels. Iye anorwisa akabvuma mukana wezvekubvisa mumubhadharo wekudzora basa rekushanda kweiyi nhevedzano yeimwe-chip mahekitori. Mushure mekudzima nzvimbo yekuvhiya zvishoma, anorwisa akamisa kushanda kunotevera kwekudzora data muOn-chip microcomputer single-chip microcomputer
Pahwaro hwedzimwe nzira dzekuvhiringidza, mamwe midziyo inogona kuvandudzwa kuti isashandirane neimwe software yekuita software kurwisa.
2. Electronic yekuona kurwiswa
Iyi nzira inowanzo tarisa hunhu hweAnalog reese masimba ezvesimba panguva yekuita basa rakajairika neyakagadziriswa temponolation, uye zviite kurwiswa nekutarisa maitiro ayo elections. Nekuti iyo micrococontroller chishandiso chinonhuwa chemagetsi, kana ichiita mirairo dzakasiyana, kushandiswa kwesimba kunoenderana kunochinja zvakare maererano. Nenzira iyi, nekuongorora uye kuona shanduko idzi uchishandisa zviridzwa zvemagetsi zvinoyera uye nzira dzemasvomhu, ruzivo rwakakosha ruzivo mumicrocontroller inogona kuwanikwa.
3. Kuisa Chenyu Chizvarwa Chidzidzo
Iyo nzira inoshandisa zvisina kujairika mashandiro ekushanda kuti bhadhara processor uye wozopa imwe yekuwana yekuwana yekuita kurwiswa. Iko kurwiswa kwakanyanya kurwiswa kwakasimba kunoita kuti ubatanidze voltage uye wachi yekuchinja. Kuvhiyiwa-voltage uye yakakwirira-voltage kurwisa kunogona kushandiswa kudzima masekete dziviriro kana kumanikidza processor kuti iite mishandiro isiriyo. Clock Nhandare Inogona Kugadzirisa Dunhu Ridziviriro Pasina Kuparadza Ruzivo rwakachengetedzwa. Simba uye Clock Nyowani dzinogona kukanganisa iyo yekushongedza uye kuurayiwa kwemirayiridzo yemunhu mune mamwe mapikicha.
4. Probe tekinoroji
Iyo tekinoroji ndeyekufumura zvakananga wiring yemukati wechip, uye wozotarisa, manacha, uye kukanganisa nemicrocoller kuzadzisa chinangwa chekurwisa.
Nekuda kwekuriridzika, vanhu vanokamura mapoka mana ari pamusoro pemapoka maviri, mumwe anokanganisa (kurwiswa kwemuviri), uyu anoshandisa semicononductor Equid Zvinogona kutora maawa kana kunyange mavhiki kuti upedze. Maitiro ese microporting ari kurwiswa kurwiswa. Dzimwe nzira nhatu ndedzipi dzisingagumi kurwiswa, uye kurwiswa microcontroller hakuzove kukuvara mumuviri. Kurwiswa kusiri-kusinganzwisisike kunonyanya kuve nengozi mune zvimwe zviitiko nekuti zvishandiso zvinodiwa pakurwiswa kusiri-kusiri kuita kazhinji kunogona kuvakwa uye kusimudzirwa, saka zvakachipa kwazvo.
Vazhinji vasiri-vasinganzwisisike kurwiswa kunoda kurwisa kuti uve neakanaka processor ruzivo uye ruzivo software. Kusiyana neizvi kurwiswa kwekurwiswa hakudi ruzivo rwakawanda rwekutanga, uye seti yakaenzana yemhando yakafanana inogona kushandiswa zvinokonzeresa zvinhu zvakasiyana siyana. Naizvozvo, kurwiswa kweMocorcontrollers vanowanzo tanga kubva mukushamisa kudzoreredza Einjinjini, uye chiitiko chakaunganidzwa chinobatsira kukudziridza zvakachipa uye nekukurumidza zvisinganzwisisike maitiro.