Kad mar EM e rito donjo: Kido, arita kod kaka inyalo yier (2026)

May 14, 2026

We weche mag ote

Kad mar 125kHz ma pod tiyo e udi mang’eny

Inyalo donjo e ot moro amora ma nigi gorofa ma diere, ot ma ji odak e iye, kata kar loso gikmoko, kendo nitie thuolo ni kadi ma jodak nigi e mbui maggi tiyo gi 125kHz. <2Zepa> Magi gin kadi mag EM, gik ma nyiso ni ng’ato ni machiegni ma oger e wi chipset mar EM4100 kata TK4100, kendo pod gin teknoloji ma itiyogo ahinya e piny. Maloyo 73% mag riwruoge e piny mangima geno kuom yore moko mag RFID - ma luwore gi rito donjo (Ripot mag Dongruok mar Chiro), kendo ng’eny mar mtokano ma ne oket pod tiyo gi teknoloji mar EM chakre e chakruok mar higni mag 2000.

 

Kad mar EM en ranyisi mar RFID ma ok ti, ma somo-kende. Oting’o 64{7}}bit ma ng’ato nyalo ng’eyogo (UID) ma owang’ nyaka chieng’ e chip ma ni e kambi. Onge betri ma ni e iye. Ka kadino odonjo e ng’wech mar stima ma ng’ato nyalo somogo, ma thothne ni e kind sentimita 2 nyaka 15, ng’wechno miyo teko mar antena mar kola ma iketo e kadino, kendo chipno oro UID mare kokalo kuom ng’wech ma ng’ato nyalo somogo. Jasomono kawo nambano, ooro ne ng’at ma rito dhoot, kendo ng’atno ng’iyo nambano ka itiyo gi databes mondo ong’e ka be dhootno oyabere. Tim mag nyieo mwandu manyoKad mar em4100 mar donjo e dhootng’enyne gineno chip ma kamano, kata pin mare ma nyalo rwako, ma en TK4100.

Professional EM proximity access control card held near a 125kHz RFID reader illustrating standard office and residential security technology

 

Kaluwore gi gik ma ng’ato nyalo ng’eyo, kadi ma ng’ato nyalo ng’eyogo EM ma ng’ato nyalo ng’iyogo luwore gi kwan mar ISO 7810 ID-1 (85.5 milimita × 54 milimita × 0.76 milimita) kendo olose gi PVC, ABS, kata PET kaluwore gi dwaro mar ng’ato ka ng’ato. Liet mar tich chakore digri −20 nyaka digri 50 . Mondo ine matut kaka chip mag RFID kano kendo oro weche e rang’iny mar protokol, ng’eyo matut mar teknoloji mar Syntek oting’oSignal kod keto kod.

 

Ere kaka Kad mar EM Tiyo e Sistem mar Rieko Kido mar Donjo?

 

Kadi ka em kadi mar ng’ado bura luwo ranyisi maromre: kadi → jasomo → ng’at ma rito → databes → lock mar stima. Gima somo kadi mar EM mar ng’ado bura mar donjo, golo UID ma omaki ka otiyo giProtokol mar bit 26, ng’at ma osebedo ka tiyo kuom higni mathoth - ma osebedo ng’at ma ng’iyo gik moko e yor waya e tich mar ng’iyo gik moko. 26-bit miyo kadi mag EM bedo gi nyalo makende mar somo: chiegni ni ng’ato ang’ata ma rito donjo e chiro biro yie gi wachno.

Nikech namba ma Wiegand nigi 26-bit en namba ma ng’ato ok ondikie kendo ma onge gik ma nyiso ni ng’ato en adier, gimoro amora ma nyalo geng’o signal ma ni e kind jasomo kod ng’at ma rito gik moko nyalo dwoko nambano kendo. Okang’ ma ne omiyo sistem mag 125kHz obedo mayot tiyo kodgi en gino marom gi ma ne miyo bedo mayot mondo oketgi e paro.

Gik ma pile ma timore ma sistem ma luwore gi EM{0}} pod odong’ ma locho gin kaka dhoudi mag oganda ma odak e iye, ohinga mag garaj mag kano gari, kuonde ma ji nyalo chopoe e kar loso gikmoko, kod dhoudi mag iye madongo e skul madongo. Mondo iyud picha malach mar kaka teknoloji mar RFID nyalo donjo e yore mag donjo mag ndalogi, ng’eyo ma Syntek nokelo mar rito donjo mar RFID nyiso map mar piny duto.

 

Kad mar EM gi Kad mar IC gi Kad mar CPU: Ang’o ma opogore ahinya

 

Oboke mang’eny ma ipimo gik moko keto mesa mar gik ma itimo kendo dhi nyime. Mesano nigi konyruok, to gik ma adier ma ng’ato dwaro ng’iewo bedo e bwoye.

 

Dipim Kad mar EM (Kad mar ID) Kad mar IC (ma ok odhi kare) Kad mar CPU
Nuoruok mar gimoro 125 kHz 13.56 MHz 13.56 MHz
Paro UID matin, ma somo kende 1-4 KB, somo -ndiko 8-64 KB+, somo -ndiko gi OS
Enkripso Onge Kripto 1 (Machon) / AES (Mach mar DE) 128/256, injin mar kripto mantie e kad
Oganda ma ok nyal timo klon Onge - ma olosi e sekon Mapiny (Klasik) nyaka Malo (Mach EV3) - ma malo ahinya mar adier
Gik mathoth - Tich achiel Owinjore (yudo + chopo) Opong'o (donjo, chudo, ng'eyo)
Nengo mar achiel (thoth) $0.08–$0.15 $0.30–$1.20 $1.50–$5.00+
Kes mar tiyo kod Yore mag donjo e dhoot, kano gari Yor donjo e ofis, kadi mag skul Oboke mar sirkal, bengi, yore mag wuotho

 

Nengo mopogore opogore kaluwore gi nengo mar oda mathoth mar Syntek e kwan mar gik moko 10, 000+; nengo mar adier opogore opogore kaluwore gi kit chip, chapa, kod dwaro mag keto kod.

 

Pogruok maduong’ mantie e kindkadi mar em kod kadi mar Mifareok en mana namba mar frekwensi kende. En pogruok mantie e kind namba ma lando namba mar serial ma ok oket ne ng’ato ang’ata ma winjo kod namba ma nyalo temo jasomo mondo onyis ni en ng’a kapok ogolo data. E kind kadi mar IC kod kadi mar CPU, ng’ado ng’wech en kowuok e rito kido mag rang’iny mar sektor nyaka e sistem mar tiyo gi kadi ma opong’o ma nyalo tiyo kod gik ma ng’ato nyalo ng’eyogo, ma en ranyisi machalre ma rito kadi mag bang’ kod ID mag piny.

 

Technical comparison table hardware including EM, Mifare IC, and high-security CPU smart cards with different RFID chips exposed for architectural demonstration

 

Adier mar Rieko kuom Kadi mag EM: Gima Jopuonj mang’eny Weyo

 

Kae en kama thoth weche mag somo chung’e e "kadi mag EM inyalo kopi" kendo dhi nyime. Adiera en gima ng’ato nyalo ng’eyo maber moloyo, kendo weche ma ng’ato nyalo ng’eyo gin gik ma dwarore ne ng’ato ang’ata ma ng’ado bura mar ng’iewo kata loso gimoro.

 

Kad mar EM4100 oro UID mare e yo maler, ma onge ng’at ma ng’ado lwedo mar ng’eyo ni en adier, kinde ka kinde ka odonjo e kar somo. Jotim nonro mag weche mag arita osenyiso ni clone ma tiyo ma iloso e kinde ma ok oromo sekon 30 ka gitiyo gi masin ma ng’ato nyalo mako e lwete ma nigi RFID ma nengogi ok chop dola 20 (Ja sayans mar arita). E higa mar 2013, jatim nonro moro e Bishop Fox ne oloso masin ma somo weche ma nigi 125kHz ma tiyo gi Arduino mondo onyis niarita mar kadi mar rfiden, e yo ma tiyo, mana kaka timo fotokopi mar barkod (Kisi).

 

Kata kamano, luorono ok mana mana ka ng’ato onyiew kad kuom dakika achiel. 125kHz UID mar kadi mar EM nyalo somo mabor nyaka mita 3, ma ng’ato nyalo ng’eyo ni ng’at ma nigi kadi ong’eyo ni ng’at ma nigi kadino okawo (Teknoloji mag MDPI). Mano miyo kuo mar "kadi e poket mari" bedo yo mar ketho adier, to ok yo mar theory.

 

<2Zepa> Kae en ng’et ma thoth jopur ma ndiko ok bi nyisi: loso EM nyaka Mifare Classic ok tieko chandruokno. <2Zepa> 10:10, 11. 10 Ne okethore e somo higni mokalo, kendo gige tich ma ng’ato nyalo ng’ado (MFOC, MFCUK) nyalo ng’ado gik ma ng’ato nyalo ng’ado e wi ng’ato ka ng’ato kuom tudruok mar kadi achiel. Gigo ma ji tiyogo kaka Flipper Zero osekelo loso mar Mifare Classic e alwora mar jogo ma ohero gik ma gihero timo. Yo mar adier mar medo dongo mar arita teroMifare mar mach EV2 kata EV3, ma tiyo kod AES-128 mar keto weche e mbui kod ng’eyo adier mar jowetegi, ma en yo mopogore ahinya mar rito weche. E temo ma ne otim gi jochiw, kambi moro ma nigi teknoloji mar rito gik moko e piny Ulaya nonyiso ni keto kadi ma nigi ng’eyo ma ng’ato nyalo ng’eyogo ne odwoko piny gik ma ne timore mag keto kadi ma ng’ato nyalo ng’ado gi 96% (Ripot mag Dongruok mar Chiro).

 

<2Zepa> Pogruokni en gima duong’ nikech jogo ma ng’iewo gikmoko kinde ka kinde oyie gi bajet mag “medore mar Mifare” ma ok onyis kit Mifare. Pogruok mar nengo e kind Mifare Classic kod DESFire EV3 en mana 3-5 × (luwore gi nengo mar loso mar Syntek e kwan), kendo pogruok mar arita en pogruok e kind "nyalo kethore gi gige tich ma nono" kod "ok nyal kethore gi yore ma sani."

 

Demonstration of security vulnerabilities in unencrypted 125kHz EM cards showing a small handheld RFID cloner device used to copy proximity UIDs

 

Ka kadi mag EM ma 125kHz pod nigi puonj - kod ka ok gin gi puonj

 

Ka ng’ato oweyo teknoloji mar EM chuth, mano ok bi konye mana kaka ka ok oketo pach kuom gik ma nyalo geng’e. Nitie gik ma nyalo timore ma nyalo miyo ng’ato125khz em kad mar chiegniodong’ kaka yiero makare, kendo ng’eyo giko geng’o tiyo gi omwom mokalo kiewo kod rito mwandu mokalo kiewo.

 

Kadi mag EM pod nyalo rito dhoudi madongo mag iye e alwora ma ng’etgi osebedo ka oritre gi gik ma nigi rang’iny mamalo kata gik ma ng’ato nyalo ng’eyogo gik moko, kaka kabat ma iye ma nigi gik ma ng’ato nyalo tiyogo e ot ma nigi DESFire. Bende, giromo gi bajet ma ogeng’o ma mwandu ma oriti nigi nengo matin mar dwoko kendo ranyisi mar luoro ok oriwo donjo mar ringruok ma ochung’ne: udi mag yweyo mag oganda, kuonde ma ok oting’o gik ma ng’ato nyalo ng’iyogo, kinde ma ng’ato nyalo bedoe kae kod mar P{IN}

 

Kadi mag EM weyo bedo gi puonj e kinde ma kar tichno tiyogo gi data ma oket chike, gige pesa, gik ma itiyogo e loso yath, kata gimoro amora ma kethogi kelo pek mag luwo chike. Kuonde mag data, kuonde mag ohala mag pesa, kuonde mag kano yath mag thieth, kod kuonde ma sirkal ketoe ok onego oket geno kuom gik ma nyalo dwokore gi gimoro ma ng’ato nyalo ng’iewo gi dola 15 ma yudore e chiro ma yudore e mbui.

 

Achiel kuom gik ma mulo riwruoge e yo ma ok owinjore en gedo mar keto gik moko e lwet ji. Ka kambi moro ma rito mwandu okawo ot moro, chiegni ni ok otimnegi nonro mar gik ma ni e kad mar donjo mondo ong’e ni gin gik ma nigi teknoloji ma nyiso ni gin jo adier. Oboke mag chiwo kadi kaka pile ndiko kwan mar kadi duto, kadi 500, kadi 200 ma tiyo, to ok kit chip kata frekwensi mar tiyo. Okenge mag yie temo ka be dhoot ka dhoot oyabere, to ok ka be ng’at ma nigi ng’eyo ma ni bang’e ondiki e mbui kata ka lando UID ma ok lokre e yo maler. Okang’no bedo e zone mar grey e kind jatend mwandu mabiro kod ng’at ma ochung’ne rito mwandu ma oko, bath ng’ato ka ng’ato kawo ni ng’at machielo osefwenyo ni kadigo gin ang’o gadier. Gik moko ariyo ma tiyo kod gige somo ma chalre nyalo tiyo kod teknoloji mopogore ahinya mag kadi, achiel nigi arita, machielo nyalo loso gik ma ok owinjore, kendo pogruokno ok nenre ka onge ng’at ma timo nonro mowinjore (ACS).

 

Kama chiro mar kadi mag rito donjo dhie

 

2025 kendo igeno ni biro chopo dola bilionde 7.84 e higa mar 2030, kendo gimedo dongo gi 6.4% CAGR (Rieko mar Mordor). E kind chirono, teknoloji mag RFID kod NFC kelo 57.75% mar tudruok mar ng’ado bura (Rieko mar Mordor). kendo keto josomo maonge tudruok ne omedore gi 38% e kind higa mar 2022 gi 2024.

 

Yo mar ng’ado teknoloji wuok e EM nyaka e Mifare Classic nyaka e Mifare mar DESFire nyaka e gik ma ng’ato nyalo ng’eyogo simu, kendo ng’ato ka ng’ato medo ng’eyo ma ng’ato nigo. Kaka ranyisi, ng’ato nyalo ng’ado bura e wi gik ma ng’ato onego otim, kendo ng’ato nyalo ng’ado bura e wi gik ma ng’ato nyalo timo e yor mbui, ma miyo ng’ato bedo gi ng’eyo ma ok ondiki e dhoot bedo gap mar luwo chike, to ok mana ng’at ma dwaro rito gik moko. 128 ng’injo maromre, to kuom keto gik ma itimo e odiechieng’ ka odiechieng’, pogruok e loso gik ma ok nyal dwoko kendo ng’injo ma ng’ato timo ng’ado ka be ng’injo mari ochung’ e rang’iny mar program mar somo kata odhi.

 

Kuom riwruoge ma ni e kind ng’wech, josomo mag frekwensi ariyo (125kHz + 13.56MHz) gin gige loko ma pile ka pile. Giyie ne kadi machon mag EM kod kadi manyien mag smart mondo obed kanyachiel e somo achiel e kinde ma itiyogo gi gik moko e yo mopogore opogore. 125kHz chanel pod tiyo e kinde duto mar loko, ma nyiso ni ng’anjo mar dwoko piny rang’iny mar ng’ato, ma nyiso kad mar EM ma olosi mondo okalo ng’at ma nigi ng’eyo manyien, nyalore nyaka chanel machon oket oko (ICT). 125kHz chanel mar weyo tich e kontrak mar ng’ado piny kaka gik madongo ma inyalo chopo gi tarik moketi, to ok en oboke mar chenro ma ng’ato nyalo ng’ado bang’ dweche ang’wen ka dweche ang’wen ka ng’eny mar kadi machon odong’ ma ok oloki.

 

Kaka Inyalo Yier Kad Mowinjore mar Rieko Gik Motudore gi Projekt Mari

 

To kar ndiko yore mag yiero ma ji duto luwo, kae en kaka ng’ato nyalo ng’ado bura ni, kuom higni 17 mag loso gik ma nyiso ni ng’ato nigi ratiro mar RFID e kambi ma borne romo m2 3,600 ma tiyo gi laini 5 mag loso gikmoko e kadi 100, 000+ e odiechieng’ achiel, waseneno kinde ka kinde ni okelo ng’uono matin ahinya:

 

  • Chak gi ranyisi mar luoro, to ok gi bajet.Lere gima timore ka ng’at ma ok omi ratiro otiyo gi oboke mar ng’at ma nigi ng’eyo. Kapo ni duoko mar ng’ato odonjo e ot mar loso lewni mag gym, EM ni kare. Kapo ni duoko mar mano en yudo rack mar sava kata e duka mar yath, we EM kod Mifare klassik chuth. <2Zepa> Dhi ng’ato ka ng’ato e kadi mag CPU.
     
  • Kae, ng’i ka be sistemno owinjore.Kapo ni jotend donjo ma nitie sani oyie kende kende gi gik ma Wiegand oketo kendo bajet ok oyiene loko jotend donjo, kadi mar em mar rito donjo nyalo bedo yo achiel kende manyalo tiyo kuom kinde machuok, to ketogi kanyakla gi gik ma luwogi (PIN, biometric) kendo indikgi kaka gik ma ong’ere ma nyalo kelo hinyruok gi dwe achiel. ng’ado bura ma ok ng’adre gadier.
     
  • Kae, kendo bang’e kende, wuo kuom nengo mar unit.Gi-pogruok mar nengo mar kadi e kind EM kod DESFen adier ($0.10 ka iporo gi $1.50+ e kwan, kaluwore gi nengo ma Syntek oketo), to en richo ma ng’ato nyalo ng’ado e wi nengo ma ng’ato onego ochul mar dwoko kadi mar ot duto bang’ ka gimoro otimore mar arita kata bang’ yudo nonro mar luwo chike.

 

Koso ma pile ahinya e nyieo, gi kwan maduong’, en nyiso "kadi mar Mifare" e chik mar nyieo ma ok nyiso Classic kata DESFire, pogruok ma nyiso ka be kadino nyalo loso gi gimoro ma ng’ato tiyogo ma ng’ato nyalo ng’iewo gi dola 30 kata dwaro ni ng’ato otim kinda mar ng’iewo gimoro amora ma ondik e wang’ ji duto. EM4100 (somo - kende, UID ma ochung’ motegno) gi T5577 (manyalo ndiko kendo, chip ma itiyogo gadier e iye mag gige loso gik moko); kendo weyo ng’iyo dwaro mag program mar somo sama owuok e sistem ma nigi 125kHz nyaka 13.56MHz.

 

Ka tich mari dwaro ni ondik EM, Mifare, kata DESFire ma nigi chenro makende mag chip, SyntekOboke mar kadi mar RFIDoting’o gik moko duto chakre e kadi ma rachar ma ng’ato nyalo tiyogo nyaka e gik ma ng’ato nyalo ng’eyo kaka ng’ato dwaro.

 

Large scale industrial manufacturing of secure RFID credentials including custom printed Mifare DESFire EV3 cards for corporate facility access

 

FAQ: Penjo ma ji mang’eny penjo e wi kadi mag EM e rito donjo

Penjo: Kad mar EM en ang’o kendo otiyo nade?

A: Kad mar EM en kadi mar RFID ma ok tiyo gi 125kHz ma nigi UID ma oseloso e kambi, ma somo mana e chip mar EM4100 kata TK4100. Kambi mar jasomo miyo antena mar kadi teko, ma kelo lando UID mar ng’eyo adier mar databes.

Penjo: Be inyalo loso kadi mag EM?

A: Kamano. Kadi mag EM oro ID ma ok ng’eny ma ok oketgi e mbui, kendo inyalo loso klon ma tiyo e sekon matin ka itiyo gi masin ma ok oting’o pesa mang’eny ma itiyogo e loso kopi.

Penjo: Ang’o ma opogore gi kadi mar EM kod kadi mar Mifare?

A: Kadi mag EM gin 125kHz, somo kende, ok ondiki weche ma ng’ato nyalo yudo. Kadi mag Mifare tiyo e 13.56MHz ka nigi paro ma somo kendo ndiko kendo konyo ndiko, ma miyo ng’ato bedo gi nyalo mar donjo maber kendo tiyo kod program mang’eny.

Penjo: Bende kadi mag EM pod itiyogo ahinya?

A: Kamano. Nengo margi ma piny, tudruok ma lach, kod ketogi mayot miyo gibedo gi teko ahinya e piny ma nigi nengo ma piny kendo ma nigi arita ma piny- e piny mangima.

Penjo: En karang’o ma onego atim lokruok kowuok e kadi mag EM mondo abed gi kadi mag smart?

A: Ka kar tich mari tiyo kod weche madongo, dwaro ni otim nonro, kata nyaka ochop chike ma luwo chike. <2Zepa> EV2/EV3 ma nigi ndiko mar AES, to ok Mifare machon.

 

 

Mondo iyud weche matut kata loso kadi ma idwaro, tudore kokalo kuomOboke mar penjo mar kadi mar RFID.

Chiwo penjo