NFC makadhi akakamurwa zvikuru ID makadhi uye IC makadhi.ID makadhi ari kunyanya kuverengwa data neNFC kuverenga zvishandiso;IC makadhi ane machipi anonyanya kugadzirisa kadhi data.
ID kadhi: rekodha chete nhamba yekadhi, nhamba yekadhi inogona kuverengwa pasina muganho uye zviri nyore kutevedzera.Iyo ID kadhi haigone kunyora data, uye rekodhi yemukati (nhamba yekadhi) inogona kungonyorwa kamwe chete nemugadziri wechip, uye mugadziri anogona kungoverenga nhamba yekadhi kuti ishandiswe, uye haakwanise kuumba hutsva hwekutonga nhamba mutemo zvinoenderana nezvinodiwa chaizvo. .
IC kadhi: Kuverenga uye kunyorwa kwe data yakanyorwa muID inoda kuenderana nepassword kuvimbiswa, uye kunyange nzvimbo imwe neimwe iri mukadhi ine kuchengetedzwa kwakasiyana kwepassword kuchengetedza zvizere kuchengetedzwa kwedata.Mvumo yekuverenga nekunyora inogona kuiswa ne password yakasiyana , iyo inopa yakanaka hierarchical manejimendi nzira yekuvimbisa kuchengetedza system.Iyo IC kadhi haigone kungoverenga yakawanda yedata nevashandisi vane mvumo, asi zvakare nyora huwandu hukuru hwe data (senge nhamba nyowani kadhi, chiremera chevashandisi, ruzivo rwevashandisi, nezvimwewo) nevashandisi vane mvumo.
Ndeapi marudzi akasiyana eIC makadhi?
M1 kadhi: yakajairika IC kadhi, chikamu 0 haigone kugadziridzwa, mamwe masekete anogona kudzimwa uye kunyorwazve kakawanda;kazhinji makadhi ekudzora kupinda uye makadhi ekusimudza atinoshandisa M1 makadhi.Iyo M1 kadhi iIC kadhi rakagadzirwa neNXP, iro zita rakazara iro NXP Mifare1 series.Parizvino, maNFC machipi anoshandiswa nevazhinji vagadziri venharembozha iNXP.
UID kadhi: yakajairwa kopi kadhi, inogona kudzokorodza kudzima uye kunyora ese masekete, iyo yekupinda yekutonga haina basa kana paine firewall.
CUID: Simudzira kadhi rekopi, iro rinogona kudzima nekunyora zvikamu zvese zvadzokororwa, uye rinogona kupinda mukati memadziro mazhinji emoto.
FUID: Yepamberi kopi kadhi, 0 chikamu chinogona kunyorwa kamwe chete, uye inova M1 kadhi mushure mekunyora.
UFUID: Super yepamusoro kopi kadhi, 0 chikamu chinogona kunyorwa kamwe chete, mushure mekunge kadhi ravharwa, richava M1 kadhi, uye kana kadhi risina kuiswa chisimbiso, rinova UID kadhi.
IC makadhi anotevera pfungwa yekutanga chip yekusangana makadhi, uye parizvino akakamurwa kuita IC makadhi uye asiri-anobata IC makadhi.Asingabatanidzi IC makadhi ndeechikamu cheRFID, uye parizvino anoreva yakakwira-frequency IC makadhi.Inonyanya kushandiswa iM1 kadhi uye makadhi ayo anowirirana.
Musiyano uripo pakati peMifare series makadhi
1) Mifare akatevedzana makadhi akakamurwa kuita Mifare UltraLight, inozivikanwawo seMF0, zvinoenderana nemachipi akasiyana anoshandiswa mukadhi;
2) Mifare S50 uye S70, inozivikanwawo seMF1;
Mifare Pro, inozivikanwawo seMF2, Mifare Desfire, inozivikanwawo seMF3.Mifare 1 ine password, Mifare UltraLight haina password.M1/ML/UtralLight/Mifare Pro inoenderana ne14443A protocol, AT88RF020 inotevedzera 14443B protocol.
Misiyano pakati peMifare S50 neMifare S70:
1) Muverengi / munyori anotumira mirairo yekukumbira yakasiyana kune kadhi;
2) Mhando yekadhi (ATQA) bytes yakadzorerwa nemhinduro yakasiyana.Rudzi rwekadhi (ATQA) reMifare S50 i0004H, uye rudzi rwekadhi (ATQA) reMifare S70 ndi0002H;
3) Kugona uye chimiro chekuyeuka zvakasiyana, huwandu hweS50 ndeye 1K bytes, uye huwandu hweS70 ndeye 4K bytes.
Parizvino, makadhi eNFC anonyanya kushandiswa mukuzivikanwa kwekutonga, makadhi ebhazi, ruzivo rwemunhu Kuzivikanwa, anti-yekunyepedzera, nezvimwe.
Handheld-wireless handheld pda inogona kutsigira NFC kadhi kuverenga nekunyora,Shenzhen Handheld-wireless Technology Co., Ltd.inopa zvakasiyana-siyanaRFID muverengi munyori, NFC dzinobata ruoko,barcode scanners, biometric handhelds, zvinyorwa zvemagetsi uye yakagadzirirwa application software, nezvimwe.
Nguva yekutumira: Nov-01-2022