Chii chinonzi mifare 1k kadhi?

Mifare Classic 1K kadhi yakajeka seM1 kadhi, iyo isiri {{2} yekubata radio frequency kadhi. Iyo tekinoroji yekutaurirana neye radio frequency kadhi inonzi padhuze nePedyo tekinoroji yekukurukurirana, kana NFC kwenguva pfupi.

Iyo M1 Kadhi yakakamurwa kuita zvikamu gumi nematanhatu, chikamu chimwe nechimwe chinoenderana nemabhuru mina (block 0-block 3), huwandu hwemabhuruku makumi matanhatu nematanhatu, akaverengeka 0-63. Iyo 0th block yeiyo 0th chikamu chinoshandiswa kuchengetedza iyo mugadziri kodhi, iyo yakasimbiswa haigone kuchinjwa. Blocks 0-2 yenzvimbo dzasara dzinoshandiswa kuchengeta data, uye vharira 3 ndiyo control block inoshandiswa kuchengeta password A, kuwana kutonga kweB. Chimiro chacho chichitevera:

A0 A1 A2 A3 A4 A5 FF {B2 B3 B5

(Password a 6 Bytes) (Chengetedza Kudzora 4 Bytes) (password B 6 Bytes)

Zvakare, password uye yekuchengetedza kutonga mune yega yega chikamu chivharo 3 zvese zvakazvimiririra, uye zviitiko zvakasiyana-siyana zvechikamu zvakazvimirira kudzorwa. Chikamu chimwe nechimwe chinogona kuziva dzakasiyana mabasa, saka inoshandiswa zvakanyanya sekadhi.

Imwe neimwe bhaisikopo ine gumi nematanhatu, saka kugona kwemakadhi eM1 {} zvikamu *

Chikamu chekutanga chechikamu chekutanga chekadhi inochengeta pasi yakasarudzika uidhi. Vamwe vane uid livation bits uye mugadziri ruzivo. Kwemakadhi anogadzirwa zvichienderana nezvinyorwa, ichi chikamu chichadzivirirwa kufekitori uye chinogona kungoverenga uye hazvigone kuverenga. Nyora. Ehezve, kune zvakarezve yakakosha uid kadhi, uid inogona kuchinjwa.

Mifare 1k kadhi inoshandiswa zvakanyanya kune nharaunda yekuwana Control, vashandi veVashandi, kadhi rekuzivisa, nhare mbozha tag kadhi.