Kasi Card wa Mifare 1K ni vichi?

Khadi la Mifare Classic 1K lifupikizgika nga ni khadi la M1, ilo ni khadi la pa wayilesi ilo likuchitika yayi. Tekinoloje yakudumbiskana na khadi la pafupipafupi la pa wayilesi likuchemeka pafupi na tekinoloje ya kuyowoyeskana, panji NFC kwa nyengo yichoko waka.

Khadi la M1 likugaŵika mu vigaŵa 16, chigaŵa chilichose chikuyana na mabuloko 4 (block 0-block 3), pafupifupi mabuloko 64, nambala 0-63. Chigaŵa cha 0 cha chigaŵa cha 0 chikugwiriskirika nchito kuti chisungire khodi ya ŵakupanga, iyo yakhozgeka Cantot yingasinthika. Blocks 0-2 ya malo agho ghakhalako ghakugwiriskirika nchito kusunga data, ndipo block 3 ni chigaŵa cha kulaŵilira icho chikugwiriskirika nchito kusunga pasiwedi A, kulaŵilira kwa kufika, na nambala yachinsinsi B. Kuzenga kuli nga ni ivi:

A0 A1 A3 A4 A4 FF 07 80 69 B0 B1 B2 B3 B4 B4 B5

(Password A 6 ma byte) (Kusambizga 4 bytes 4) (Bassword B 6 bytes)

Kweniso, pasiwedi na kusunga vinthu vyakusungamo vinthu pa chigaŵa chilichose 3 vikujiyimira paŵekha, ndipo ntchito zakupambanapambana za chigaŵa ichi zikulaŵilirika mwakujiyimira paŵekha. Chigaŵa chilichose chingamanya ntchito zakupambanapambana, ntheura chikugwiriskirika nchito chomene nga ni khadi.

Block yiliyose mu khadi ili na 16 bytes, ntheura nkhongono ya khadi la M1=16 vigaŵa * 4 block * 16 bytes=1024 bytes=1k (kufuma kwa khadi la M1).

Chigaŵa chakwamba cha chigaŵa chakwamba cha khadi ili chili na UID yapadera pa charu chose. Ŵanyake ŵali na vinthu vyakukhozgera UID na uthenga wa ŵakupanga. Pa makadi agho ghapangika mwakuyana na vimanyikwiro, chigaŵa ichi chizamulembeka - kuvikilirika ku fakitare ndipo kungaŵazgika waka ndipo kungaŵazgika waka yayi. Lemba. Kukamba uneneska, pe so khadi lapadera la UID, UID yingasinthika.

Mifare 1K Card yikugwiriskirika nchito comene pakulongozga ŵanthu, kulongozga ŵanchito, khadi lakumanyikwa, khadi la foni ya foni.