NTAG vs MIFARE NFC Stickers: Qhov Chip Puas Zoo?

Yog tias koj muab khoomNFC stickersrau kev ntim khoom, kev lag luam, kev tswj xyuas, lossis kev lees paub cov khoom, thawj qhov kev txiav txim siab yog feem ntauNTAG vs MIFARE. Ob leeg yog siab - zaus (13.56 MHz) chips uas ua raws li ISO / IEC 14443 tus qauv, thiab ob qho tib si tuaj yeem hloov mus ua cov ntawv nplaum nyias, tab sis lawv tau tsim rau ntau txoj haujlwm sib txawv.

Cov ntawv luv luv: NTAG NFC cov ntawv nplaum yog qhov kev xaiv zoo tshaj plaws thaum qhov kev sib cuam tshuam tseem ceeb yog lub xov tooj kais, xws li qhib URL, qhia cov ntaub ntawv khoom lag luam, sau npe rau kev lav, lossis qhib lub app. MIFARE NFC cov ntawv nplaum haum rau tus nyeem ntawv- thiab- cov ntawv thov kaw lus xws li kev tswj xyuas kev nkag, kev pib, kev ua tswv cuab, thiab kaw- voj kev them nyiaj, qhov twg tag yog ib daim ntawv pov thawj hauv kev tswj hwm.

Yog li cov lus nug zoo dua tsis yog lub nti twg muaj zog dua, tab sis daim ntawv nplaum yuav tsum ua li cas. Cov ntu hauv qab no taug kev los ntawm qhov kev txiav txim siab uas nws ua rau hauv qhov tiag tiag ua ntej- cov haujlwm tsim khoom, nrog rau kev xaiv cov nti tshwj xeeb, cov lus sib piv tag nrho, kev tiv thaiv -kev dag ntxias sib sib zog nqus dhia dej, thiab daim ntawv teev npe ua ntej - xaj xaj.

 

Quick answer: NTAG or MIFARE?

Siv qhov no ua qhov pib nrawm, tom qab ntawd lees paub cov ntsiab lus txuas ntxiv mus.

Raws li txoj cai ntawm tus ntiv tes xoo: yog tias qhov project nyob hauv xov tooj, NTAG sai dua thiab pheej yig dua los siv. Yog tias nws nyob ntawm cov neeg nyeem, cov yuam sij, kev tso cai, lossis kev lag luam ruaj ntseg, MIFARE, feem ntau yog DESFire, yog txoj kev nyab xeeb dua.

 

Tsib nqe lus nug los nug ua ntej koj xaiv lub nti

Feem ntau cov teeb meem "chip tsis raug" los ntawm kev xaiv kho vajtse ua ntej cov ntaub ntawv siv tau meej. Khiav los ntawm tsib nqe lus nug no ua ntej, thiab cov lus teb feem ntau yuav pom tseeb.

• Leej twg nyeem nws, xov tooj lossis tus nyeem ntawv tshwj xeeb?Yog cov pej xeem kais nws nrog lawv tus kheej lub xov tooj, lean NTAG. Yog tias tus nyeem ntawv ruaj khov, tus tswj hwm, lossis turnstile scans nws, lean MIFARE.
• Koj xav tau kev ruaj ntseg ntau npaum li cas?Tsuas yog qhib cov ntaub ntawv xav tau tus qauv NTAG nkaus xwb. Cryptographic, server-cov ntaub ntawv pov thawj tseeb rau NTAG424 DNA. Nkag mus nkag lossis khaws cov ntsiab lus tseem ceeb rau MIFARE DESFire.
• Ntau npaum li cas cov ntaub ntawv yuav tsum tau tuav?Ib qho URL zoo haum rau NTAG213; ntau NDEF cov ntaub ntawv lossis cov ntawv ntev taw rau NTAG215 lossis NTAG216.
• Nws yuav zaum ntawm qhov chaw twg?Yas, ntawv, thiab iav feem ntau zoo, tab sis hlau detunes tus kav hlau txais xov, yog li koj xav tau ib qhoanti-hlau NFC daim nplaumnrog ib txheej ferrite.
• Qhov ntim thiab pob nyiaj siv li cas?Cov neeg siv khoom loj rollouts nyiam tus nqi- optimized NTAG; tswj cov ntaub ntawv pov thawj muaj peev xwm nqa MIFARE nti thiab cov nqi sib koom ua ke uas tsim nyog los ntawm kev ruaj ntseg thiab kev tswj hwm.

 

NTAG NFC stickers yog dab tsi?

NTAG NFC cov ntawv nplaum siv NXP's NTAG chip tsev neeg thiab tsim los rau kev sib cuam tshuam ntawm smartphones yooj yim, txhim khu kev qha. Lawv khaws cov ntaub ntawv hauv cov ntawvNDEF hom ntawv txhais los ntawm NFC Forum, uas yog qhov ua rau yuav luag txhua lub xov tooj nyeem ib daim ntawv thiab ua rau nws, qhib qhov txuas, qhia ntawv, txuag kev sib cuag, lossis qhib lub app, yam tsis muaj lub siab nyiam app.

Cov kev xaiv sib txawv feem ntau sib txawv hauv cov neeg siv nco:

• NTAG 213muaj kwv yees li 144 bytes ntawm cov neeg siv nco. Nws yog qhov zoo tagnrho rau ib qho URL lossis cov ntaub ntawv khoom luv luv, thiab nws yog lub neej ntawd rau kev lag luam feem ntau thiab ntim khoom.
• NTAG 215muaj kwv yees li 504 bytes, muaj txiaj ntsig thaum koj xav tau ob peb NDEF cov ntaub ntawv lossis kev them nyiaj ntev dua.
• NTAG 216muaj kwv yees li 888 bytes, rau kev nplua nuj, ntau-cov ntaub ntawv sau tseg.
• NTAG 424 DNAmuaj 416 bytes ntxiv rau AES-128 cryptography thiab tus kais-cov lus pov thawj tshwj xeeb; nws yog tsim los rau kev ruaj ntseg thiab tiv thaiv kev ua txhaum cai es tsis yog kev sib txuas ncaj qha.

Ib txoj hauv kev ua kom me me ntawm cov nti: yog tias koj tab tom encoding tsuas yog ib qho URL, NTAG213 yuav luag ib txwm txaus, txij li qhov txuas luv luv yog zoo nyob rau hauv nws qhov txwv 144-byte. Txav mus rauNTAG 215los yog NTAG216 thaum koj xav tau ntau cov ntaub ntawv (piv txwv li URL ntxiv rau cov ntawv ntxiv rau cov ntaub ntawv app), qhov URL ntev nrog cov ntsuas ntsuas, lossis lub taub hau rov qab -encode tom qab.

 

MIFARE NFC cov ntawv nplaum yog dab tsi?

MIFARE NFC cov ntawv nplaum siv NXP's MIFARE chips, uas yog tus tswj kev nkag mus, kev thauj mus los hauv pej xeem, pib, kev ua tswv cuab, thiab kaw- nyiaj them. Piv nrog NTAG, MIFARE yog qhov system- taw qhia: lub nti yog txhais tau tias ua haujlwm nrog cov nyeem, cov yuam sij, thiab cov software backend, tsis yog lub xov tooj xwb.

• MIFARE Classic 1K / 4Kyog ib txoj haujlwm qub txeeg qub teg tseem pom muaj nyob hauv ntau lub tshuab qub. Nws siv tus tswv ntawm Crypto-1 cipher, uas tau zoo-cov ntaub ntawv tsis muaj zog, yog li nws tsim nyog rau qis- pheej hmoo lossis qub txeeg qub teg- kev xa tawm tau zoo tab sis tsis yog rau cov haujlwm ruaj ntseg tshiab. Rau keeb kwm yav dhau, saibMIFARE 1K daim npav yog dab tsi.
• MIFARE Plusyog ib txoj hauv kev hloov kho tshiab los ntawm Classic uas ntxiv AES kev ruaj ntseg.
• MIFARE DESFire EV1 / EV2 / EV3yog qhov ruaj ntseg, ntau- daim ntawv thov kab, siv AES-128 thiab peb-pass kev sib koom ua pov thawj, raws li tau piav qhia hauvNXP's DESFire EV3 cov ntaub ntawv. Nws yog qhov kev xaiv ib txwm muaj rau kev tswj xyuas kev nkag mus, kev thauj mus los, thiab daim pib.

Ib qho kev ceeb toom tsim nyog hais txog thaum ntxov: MIFARE feem ntau yog siv los ua daim npav, fob tseem ceeb, lossis lub dab teg es tsis yog daim ntawv nplaum, vim tias cov kab ke no feem ntau muab daim ntawv pov thawj rau ib tus neeg. Raws li cov ntawv nplaum, MIFARE ua rau kev nkag siab tsuas yog rau cov cuab yeej cuab tam lossis qhov system tagging. Yog tias koj qhov project nkag mus rau - lossis kev ua tswv cuab -raws li, koj yeej xav tauMIFARE daim npav nkaglos yog fobs es tsis txhob sau ntawv.

 

NTAG vs MIFARE NFC stickers: side-by-side comparison

Cov lus no piv cov chips ntawm cov yam ntxwv uas feem ntau txiav txim siab ib qhov project.

 

Qhov sib txawv tseem ceeb uas cuam tshuam rau koj qhov project

 

Smartphone nyeem: iPhone, Android, NDEF thiab UID

Xov tooj compatibility tsis yog ib yam; nws nyob ntawm seb tus xov tooj nug kom nyeem. Feem ntau niaj hnub iPhones thiab Android pab kiag li lawm nyeem NDEF cov ntaub ntawv ntawm NTAG tag hauv keeb kwm yav dhau thiab ua rau nws, qhib qhov URL uas tsis muaj app ntsia. Kev nyeem cov nti UID, lossis kev nyeem ntawv lossis cov ntaub ntawv cov ntaub ntawv, yog ib qho haujlwm sib txawv uas feem ntau xav tau ib qho app lossis tus nyeem ntawv tshwj xeeb.

Qhov no yog qhov uas MIFARE Classic tau txais qhov tsis txaus ntseeg rau cov neeg siv khoom lag luam: nws cov ntaub ntawv sector tsis tuaj yeem nyeem tau thoob plaws txhua lub xov tooj, thiab kev txhawb nqa iPhone tshwj xeeb yog txwv, yog li Classic feem ntau ua ke nrog cov neeg nyeem siab es tsis yog pej xeem cov xov tooj. NTAG thiab DESFire ua raws NFC Forum tag hom, uas ua rau lawv xav tau ntau dua. Yog tias cov neeg siv kawg yuav coj mus rhaub nrog lawv tus kheej lub xov tooj, NTAG yog qhov kev nyab xeeb dua thawj koom ruam, thiab nws pab kom nkag siabYuav ua li cas NFC nyeem ntawv ua haujlwm hauv xov toojua ntej koj cog lus.

 

Kev ruaj ntseg thiab authentication

Standard NTAG21x chips yog tsim rau qhib kev sib tshuam. Qee qhov txhawb nqa 32-ntsis lo lus zais uas tuaj yeem cuam tshuam kev sau dua tshiab, tab sis tus password tsis yog cryptographic authentication, thiab chip's UID, thaum tshwj xeeb, tuaj yeem nyeem tau thiab tsis yog ntawm nws tus kheej pov thawj ntawm qhov tseeb. Cov ntsiab lus kawg no tseem ceeb, vim tias UID-tsuas yog "kev pov thawj" yog ib qho ntawm feem ntau ua yuam kev tiv thaiv cuav.

Rau kev lees paub tiag tiag, lub nti yuav tsum ua pov thawj nws tus kheej cryptographically.NXP's NTAG 424 DNAsiv AES-128 thiab tsim qhov sib txawv, server-cov lej pov thawj ntawm txhua tus kais, uas nyuaj heev rau clone. Ntawm qhov system sab, MIFARE DESFire ntxiv peb - dhau qhov kev lees paub qhov tseeb thiab cov ntaub ntawv qib yuam sij, yog li daim npav thiab tus nyeem ntawv txheeb xyuas ib leeg ua ntej cov ntaub ntawv txav mus. Yuav ua li cas qhov no yog siv rau hauv kev xyaum, saib lub ntsiab lus ntawm noNFC tiv thaiv- thev naus laus zis.

 

Nco thiab cov ntaub ntawv qauv

NTAG siv qhov yooj yim, feem ntau cov kab cim xeeb tso tawm rau NDEF, uas yog vim li cas nws thiaj yooj yim rau encode rau URLs, ntawv nyeem, thiab cov ntaub ntawv tiv tauj. MIFARE siv lub cim xeeb ntawm cov haujlwm, kev siv, cov ntaub ntawv, thiab cov yuam sij nkag. Qhov ntawd ua rau muaj kev tswj xyuas ntau dua rau leej twg tuaj yeem nyeem lossis sau dab tsi, ntawm tus nqi ntawm kev npaj ntau dua, kev tswj xyuas qhov tseem ceeb, thiab kev sim.

 

Kev sib koom ua ke ntawm qhov system thiab tus nqi

Ib qhov project NTAG feem ntau tuaj yeem siv nrog ib leegNFC nyeem ntawv thiab sau ntawv: encode qhov URL, siv daim nplaum, thiab cov neeg siv khoom coj mus rhaub. Ib txoj haujlwm MIFARE feem ntau xav tau cov neeg nyeem sib xws, kev tswj hwm qhov tseem ceeb, software backend, thiab nkag mus rau cov cai, ntxiv rau kev sim tawm tsam cov kab ke nyob.

Tus nqi raws li qhov nyuaj. Tus nqi tiag tiag tus tsav tsheb rau NFC daim nplaum yog cov nti hom, kav hlau txais xov loj, substrate (daim ntawv, PET, PVC, los yog epoxy), luam ntawv, txawm tias cov cim npe yog dawb los yog ua ntej -encoded, ib qho lamination lossis xauv kauj ruam, thiab, rau kev siv hlau, ib txheej ferrite ntxiv, txhua qhov sib npaug ntawm qhov ntau. Cov lus qhia siv tau yooj yim: tsis txhob them nyiaj rau MIFARE nyuaj thaum lub xov tooj tsuas yog xav tau qhib URL, thiab tsis txhob sim khiav kev tswj xyuas kev nyab xeeb ntawm NTAG nti.

 

NTAG424 DNA vs MIFARE DESFire rau kev tiv thaiv- cuav

Rau kev tiv thaiv hom no yog qhov kev xaiv uas tseem ceeb tshaj plaws, vim tias ob lub chips siv zog AES-128 cryptography tab sis daws teeb meem sib txawv me ntsis.

NTAG424 DNA yog lub hom phiaj- tsim los rau cov neeg siv khoom siv kais-kom- txheeb xyuas. Vim tias nws qhov kev lees paub tseeb yog tsim rau txhua tus kais dej thiab kuaj xyuas ntawm koj lub server, tus neeg yuav khoom tuaj yeem lees paub qhov tseeb nrog lub xov tooj zoo tib yam thiab tsis muaj app, thiab tib tus kais tuaj yeem tsav kev lag luam lossis kev sau npe. Nws kuj yog qhov kev xaiv pheej yig dua rau siab - ntim cov khoom pov thawj.

MIFARE DESFire yog tsim los rau ntau- daim ntawv thov, nyeem ntawv- raws li ecosystems xws li kev nkag mus, kev thauj mus los, thiab cov nqi khaws cia, thiab nws yog qhov kev xaiv zoo thaum daim ntawv pov thawj ruaj ntseg kuj tau ua cov haujlwm ntawd. Rau cov neeg siv khoom pov thawj cov khoom siv ntshiab nws feem ntau yog ntau tshaj qhov koj xav tau; rau ib daim ntawv pov thawj uas yuav tsum tau nyob rau hauv ib qho kev nkag los yog kev them nyiaj system thiab kuj nqa ib tug authentication muaj nuj nqi, nws fits zoo.

Qhov kev txiav txim siab hauv ib kab: xaiv NTAG424 DNA rau cov neeg siv khoom- ntsib kev tiv thaiv hom, thiab DESFire thaum qhov kev lees paub yuav tsum tau ua ke nrog kev nkag mus, pib, lossis them nyiaj hauv tib qhov kev tswj hwm. Txawm li cas los xij, tsis txhob cia siab rau qhov kev kuaj UID dawb, vim qhov ntawd yog kev txheeb xyuas, tsis yog kev lees paub.

 

Xaiv los ntawm daim ntawv thov

Raukev tshaj tawm kev lag luam thiab cov ntawv tshaj tawm ntse, NTAG213 tuav kais-rau- qhib URLs, rub tawm app, thiab nplooj ntawv phiaj xwm pheej yig thiab ntseeg tau. Rauntse ntim thiab cov ntaub ntawv khoomxws li phau ntawv qhia, kev tso npe lav, thiab cov ntsiab lus ntawm hom, NTAG213 npog cov kev sib txuas yooj yim, nrog NTAG216 thaum koj xav tau chav ntxiv.

RauCov khoom pov thawj thiab tiv thaiv- cuav, siv NTAG424 DNA, lossis DESFire hauv lub kaw lus ruaj ntseg loj dua, thiab tsis muaj qhov zoo li qub -URL nti ib leeg. Rautswj kev nkagxws li lub qhov rooj, tus neeg ua haujlwm ID, chav tsev so, thiab cov chaw txwv, MIFARE DESFire los yog ib lub nti sib piv cov txheej txheem uas twb muaj lawm yog tus qauv, feem ntau muab ua daim npav lossis fobs ntau dua li cov ntawv nplaum. Rauticketing, kev ua tswv cuab, thiab cov xwm txheej, MIFARE yog qhov ib txwm haum, thiab daim ntawv pov thawj feem ntau yog ib qhoRFID wristbandlossis daim npav tsis yog daim ntawv lo. Raukev txheeb xyuas cov cuab yeej cuab tam yooj yim, NTAG213 feem ntau yog txaus tshwj tsis yog tias lub kaw lus tswj hwm qhov tshwj xeeb MIFARE nti.

 

Thaum tsis siv NTAG, thiab thaum tsis siv MIFARE

Avoid NTAGThaum koj xav tau kev tswj hwm kev nkag mus rau hauv cryptographic, khaws tus nqi lossis kev them nyiaj, ntau- daim ntawv pov thawj tswj hwm, lossis nplua - cov ntawv tso cai backend tau zoo. Qhov ntawd yog DESFire thaj chaw.

Zam MIFARE, tshwj xeeb tshaj yog Classic, thaum lub hom phiaj yog qhov yooj yim, loj - nplai xov tooj kais - rau -URL kev, thaum koj cov neeg tuaj saib feem ntau ntawm iPhones thiab koj yuav tau tso siab rau Classic sector nyeem, lossis thaum koj xav tau tus nqi qis tshaj thiab qhov yooj yim tshaj plaws tau encoding. Hauv cov xwm txheej ntawd NTAG sai dua, pheej yig dua, thiab kwv yees ntau dua.

 

Feem ntau yuam kev thaum xaiv NFC cov ntawv nplaum

1.  

2. Xaiv MIFARE vim nws suab zoo dua.

3. Lub nti ib leeg tsis tsim kev ruaj ntseg; koj kuj xav tau kev tswj xyuas qhov tseem ceeb, kev nyeem ntawv sib raug zoo, thiab kev nkag mus rau cov cai. Qhov kev teeb tsa tsis raug DESFIre tsis muaj kev nyab xeeb dua li qhov dej -scoped NTAG ib qho.

4.  

5. Siv UID los tiv thaiv -kev dag.

6. A UID txheeb xyuas lub nti tab sis tsis ua pov thawj tias nws yog qhov tseeb. Rau kev tiv thaiv tiag tiag, siv lub nti tsim los rau kev txheeb xyuas qhov tseeb xws li NTAG424 DNA lossis DESFire.

7.  

8. Tsis quav ntsej cov xov tooj coj li cas.

9. Yog tias cov neeg siv khoom yuav coj mus rhaub nrog lawv tus kheej li, sim koj lub nti thiab encoding ntawm ob qho tib si iOS thiab Android ua ntej cog lus rau kev ua haujlwm ntau lawm.

10.  

11. Tsis nco qab cov khoom nto.

12. Kev hloov pauv ntawm cov yas, iav, duab los qhia, thiab tshwj xeeb tshaj yog hlau, uas yuav luag txhua zaus yuav tsum muaj kev tiv thaiv -hlau NFC daim nplaum nrog txheej ferrite.

13.  

14. Xaiv lub nti ua ntej siv rooj plaub.

15. Pib los ntawm cov neeg siv kev nqis tes ua thiab cov kev xav tau ntawm lub system, tom qab ntawd xaiv cov nti, tsis yog lwm txoj hauv kev.

 

Khoom siv, kav hlau txais xov, thiab nto, thiab yuav ua li cas kuaj

Lub nti tsuas yog ib feem ntawm kev ua haujlwm. Substrate, kav hlau txais xov loj, nplaum, nto, thiab ib puag ncig txhua yam teeb meem. Cov hom ntawv nplaum feem ntau suav nrog cov ntawv rau cov nqi qis - cov nqi sib tw, PET rau cov kav ntev, PVC rau cov qauv,epoxyrau qhov zoo tshaj plaws, tiv thaiv-hlau rau cov hlau nto, thiab kev cai- luam tawm rau lub npe.

Raws li tus qauv dav dav, tus kav hlau txais xov loj dua txhim kho kais kam rau ua thiab ntau yam, thaum daim ntawv me me nyeem ntawm qhov luv dua. Ib kauj ruam tseem ceeb tshaj plaws yog sim rau ntawm qhov chaw tiag tiag. Hlau thiab kua detune tus kav hlau txais xov, lub raj mis nkhaus thiab cov khoom siv hluav taws xob me me hloov pauv, thiab qhov kub thiab txias tuaj yeem cuam tshuam qhov adhesion. Ua ntej kev tsim khoom loj, ua kom tau txais kev nyeem ntau thiab kev ntseeg siab ntawm koj cov khoom tiag tiag, nrog koj lub hom phiaj xov tooj lossis cov neeg nyeem, nyob rau hauv cov xwm txheej cov cim npe yuav nyob hauv. Yog tias nws mus rau ntawm cov hlau, paub meej tias muaj kev tiv thaiv -hlau lossis ntawm - hlau tsim thaum lub sij hawm sampling es tsis yog tom qab kev txiav txim ships.

 

Ua ntej- daim ntawv tshuaj xyuas ntau lawm rau NFC cov neeg yuav khoom

Kev lees paub cov ntsiab lus no nrog koj tus neeg muag khoom ua ntej koj xaj yuav tiv thaiv kev luam tawm ntau dua thiab ua tsis tiav:

• Exact chip, not just "NTAG" or "MIFARE": NTAG213 vs 215 vs 216 vs 424 DNA, or the particular MIFARE type.
• Nco ntsoov, raws li koj cov ntsiab lus NDEF thiab tus naj npawb ntawm cov ntaub ntawv.
• Dawb los yog ua ntej -encoded, thiab yog tias ua ntej -encoded, cov ntsiab lus tseeb thiab cov ntaub ntawv hom. Yog tias cov ntsiab lus yuav tsum hloov tom qab, nug txogrewritable NFC tagsthiab lub xauv xwm txheej.
• UID hom ntawv, thiab rau NTAG424 DNA, seb UID thiab lub txee kais yuav tsum tau tsom mus rau qhov URL rau kev txheeb xyuas.
• Xauv lossis nyeem -tsuas yog xwm txheej, lub ntsiab lus seb lub cim yog xauv tom qab encoding.
• Cov passwords lossis cov yuam sijrau cov ntaub ntawv tiv thaiv NTAG lossis MIFARE.
• Anti- txheej hlau, yog lossis tsis yog, raws li qhov chaw mounting.
• Substrate, nplaum, loj, thiab kav hlau txais xov, phim rau qhov chaw thiab ib puag ncig.
• Cov qauv kuajntawm koj qhov chaw thiab cov khoom siv, ua ntej khiav tag nrho.
• Quantity thiab coj lub sijhawm, suav nrog MOQ thiab ib qho kev cai - luam ntawv teeb.

Rau ib qho kev cai lossis loj - qhov project ntim, nws pab ua kom tag nrho cov no nrog cov chaw tsim khoom ua ntej, piv txwv li los ntawm ib qhoOEM thiab ODMtxheej txheem uas xauv lub nti, encoding, thiab cov khoom ua ntej ntau lawm.

 

Cov lus nug uas nquag nug

 

MIFARE cov ntawv nplaum puas tuaj yeem ua haujlwm nrog iPhone?

Nws nyob ntawm lub nti. MIFARE DESFire thiab NTAG, uas iPhones kho raws li tus qauv NFC Forum tags, tau txais kev txhawb nqa zoo, tab sis MIFARE Classic sector cov ntaub ntawv tsis tuaj yeem nyeem tau ntawm iPhones, yog li Classic feem ntau yog siv nrog cov neeg nyeem siab ntau dua li cov neeg siv xov tooj. Rau ib lub xov tooj- thawj qhov project, NTAG yog qhov kev xaiv zoo tshaj plaws.

 

Is NTAG secure?

Standard NTAG21x chips yog tsim rau qhib kev sib cuam tshuam thiab tsuas yog muaj kev xaiv lo lus zais, uas tsis muaj kev lees paub zoo. Yog tias koj xav tau kev ruaj ntseg, NTAG424 DNA ntxiv AES-128 thiab cov lus kais tshwj xeeb uas tus neeg rau zaub mov tuaj yeem txheeb xyuas, uas yog qhov muaj zog rau kev lees paub cov khoom.

 

Daim ntawv nplaum NFC twg yog qhov zoo tshaj rau kev tiv thaiv- cuav?

NTAG424 DNA yog qhov zoo tshaj plaws ib txwm haum rau cov neeg siv khoom- ntsib kev tiv thaiv hom, vim tias cov neeg yuav khoom tuaj yeem txheeb xyuas cov khoom lag luam nrog lub xov tooj zoo tib yam. MIFARE DESFire haum rau cov xwm txheej uas tib daim ntawv pov thawj ruaj ntseg tseem xav tau los tswj kev nkag lossis them nyiaj. Kev kuaj UID dawb tsis yog tiv thaiv - cuav.

 

Puas yog NTAG213 txaus rau kuv qhov URL?

Rau ib qho URL, yuav luag ib txwm muaj, vim tias qhov txuas luv luv haum haum rau hauv NTAG213 qhov kwv yees li 144 bytes ntawm cov neeg siv nco. Kauj ruam mus rau NTAG215 lossis NTAG216 yog tias koj xav tau ntau cov ntaub ntawv NDEF, qhov URL ntev nrog cov ntsuas ntsuas, lossis lub taub hau ntxiv.

 

Vim li cas thiaj yuav tsis kuv daim ntawv nplaum NFC nyeem ntawm cov hlau nplaum?

Hlau detunes tus qauv NFC kav hlau txais xov thiab nqus cov teb, yog li daim ntawv nplaum zoo tib yam feem ntau yuav tsis nyeem thaum daig rau hlau. Siv cov tshuaj tiv thaiv -hlau NFC daim nplaum nrog txheej ferrite, thiab paub meej tias kev ua tau zoo ntawm koj qhov chaw tiag tiag thaum kuaj.

 

Kuv puas yuav tsum xaj cov ntawv dawb lossis ua ntej -encoded NFC cov ntawv nplaum?

Cov cim tsis pub dhau ua rau koj yooj yim rau encode hauv -tsev; ua ntej-encoded tags txuag lub sij hawm ntawm qhov ntsuas tab sis xav kom koj kaw cov ntsiab lus thiab sau hom nyob rau pem hauv ntej. Rau cov ntsiab lus dynamic, nug txog rewritable tags thiab seb lub nti yuav raug kaw tom qab encoding.

 

Cov kab hauv qab

Xaiv NTAG rau hauv xov tooj- ua haujlwm ua ntej xws li kev lag luam, ntim khoom ntse, cov ntaub ntawv khoom, thiab kev qhia yooj yim, thiab xaiv MIFARE, feem ntau yog DESFire, thaum daim ntawv nplaum yog ib feem ntawm kev ruaj ntseg nrog cov nyeem, cov yuam sij, thiab kev tso cai. Rau kev tiv thaiv- cuav, ncav cuag NTAG424 DNA, lossis DESFire hauv lub ecosystem loj dua, thiab tsis txhob cia siab rau UID daim tshev ib leeg. Teem cov ntaub ntawv siv, xov tooj-los yog- kev nyeem ntawv, theem kev ruaj ntseg, nco, nto, thiab ntim ua ntej; txoj cai nti, kav hlau txais xov, thiab cov khoom ua raws li cov lus teb no.

Cov lus qhia no yog ua raws li ob txhais tes- ntawm kev paub txog kev tsim, kev nkag siab, thiab ua ntej- kuaj NFC cov ntawv nplaum hla NTAG thiab MIFARE nti tsev neeg, nrog rau cov ntsiab lus kev kos los ntawm NXP thiab NFC Rooj Sib Tham cov ntaub ntawv.