Aluminiyɔmu RFID Blocking Sleeves Baarakɛcogo ani baarakɛcogo

 

Aluminiyɔmu papiye bololanɛgɛ bɛ RFID taamasiyɛnw bali cogo min

 

Ni karti sigilen bɛ jirisunba dɔ kɔnɔ min bɛ taa ni fɛnw ye, o dakun bɛ kɛ i n’a fɔ aFaraday ka cakɛda. Aluminiyɔmu layini bɛ kuran-magnetiki-yɔrɔ jira ani k’a minɛ, kɛnɛma kalanbaga bɛna baara kɛ ni min ye cogoya la walasa ka RFID puce fanga di. Foro si tɛ se puce ma, data si tɛ bɔ karti la.

 

O bɛ baara kɛ k’a sababu kɛ...fari jugumanba, conducteur (dakun) janya min ka kan ka kɛ walasa ka taamasiyɛn dɔ dɔgɔya ni 63% ɲɔgɔn ye. Ni 13,56 MHz ye, n’o ye NFC sarali kartiw baarakɛcogo ye ani bi hakilitigi seereyaw fanba, aliminiyɔmu fari juguya bɛ se milimɛtɛrɛ 0,018 ma. Cuisini papier standard bɛ boli milimɛtɛrɛ 0,016 ɲɔgɔn na. A surunyalen don kosɛbɛ.Jago karti-lakanani bololanɛgɛwaw bɛ nin papiye in lamini papiye walima polimɛri layiniw cɛ ani a ka c’a la ka tɛmɛ aliminiyɔmu fari juguman kelen kan, o min bɛ taamasiyɛn jigin 13,56 MHz kalanbagaw ka jɛɲɔgɔnya dakun jukɔrɔ.

Ɲininkali kelen min bɛ kɛ an fɛ tuma bɛɛ Syntek la, o bɛ o ɲagami jira. Fɛnɲɛnɛmako ɲɛmɔgɔ dɔ bɛ RFID-blocking badge holders ɲini baarakɛla 200 ye, ka "RFID blocking" ɲɛfɔ k'a sɔrɔ a ma frequency fɔ. An b’a ɲininka u ka boon bɛ baara kɛ ni kalanden modɛli jumɛn ye. Waati tilancɛ ɲɔgɔn, jaabi bɛ Kɛ HID ProxPoint walima o ɲɔgɔnna 125 kHz sitɛmu ye. O waati la an ka kan ka kɛ tilennen ye: an kaaluminiyɔmu papiye karti bololanɛgɛbɛ jate 13,56 MHz ani ka tɛmɛ o kan. A bɛna NFC sarali kartiw, e-pasipɔriw, ani HF hakilitigiw ka seereyaw lakana ka ɲɛ. A tɛna lakanani dannamɔgɔ di 125 kHz gɛrɛgɛrɛ badgew ma. Ni i ka sitɛmu bɛ baara kɛ ni 125 kHz ye, i mago bɛ multi-layer conductive composite purpose-min jɔra low-frequency attenuation kama, wa o ye fɛn dilannen suguya wɛrɛ ye min sɔngɔ tɛ kelen ye.

Passive Shielding Sleeves vs. Active Blocking Cards: Min bɛ bɛn baarakɛda ka baarakɛcogo ma

 

Fɛn dilannen suguya fila bɛ ɲɔgɔn sɔrɔ "RFID balili" kɔrɔ, nka a bɛ fɔ ko fɛɛrɛw tɛ ɲɔgɔn ta. Ka u hakili ɲagami sannifeere la, o ye fili nɔgɔman ye min bɛ bonya kosɛbɛ.

 

Gɛlɛya bɛ jira kariti caman- sigidaw la. Jamming karti ka baarakɛcogo ɲuman bɛ santimɛtɛrɛ 2 ɲɔgɔn bɔ a sanfɛla la. Aw bɛ don karti, wari sara karti ani tɛmɛsira karti dɔ dalajɛ fɛn kelen kɔnɔ, o la, jammer tɛ se ka se u saba bɛɛ ma. Baro minnu kɛra fɛnɲɛnamafagalan lakanani forobajɛkuluw kan, n’o ye san 2025 jirisunba dɔ ye min ɲɛfɔlen don Linus Tech Tips sigida lajɛba kan, olu ye ko dɔw sɛbɛn, minnu na karti kelen wɛrɛ bɛ jammer ni laɲini seereyaw cɛ, o kɛra sababu ye ka jammer dɛsɛ. Dangerous Things Forum mɔgɔw ye nin ko in sɛgɛsɛgɛ ka taa a fɛ ni HID iClass seereyaw ye.

 

Bolo pasif (bololanɛgɛ pasif) bɛ o fɛn caman ɲɔgɔnna bɔ yen. Karti bɛ conductive enclosure kɔnɔ walima a tɛ. Aw bɛ se ka datugucogo sɛgɛsɛgɛ ni ɲɛ ye, wa aw bɛ se k’a kɔrɔbɔ segin tan kɔnɔ: aw bɛ karti don a kɔnɔ, ka bolokɔni minɛ aw ka kalanden na. Ni kalanden ma se ka karti dɔn, bolokɔni bɛ baara kɛ.

 

Baarakɛda ka badge porogaramuw kama, bololanɛgɛw bɛ se sɔrɔ kofɔli kan: i bɛ se k’u di baarakɛla 300 ma ani k’a dɔn ko kelen-kelen bɛɛ bɛ baara kɛ cogo kelen na. Jamming kartiw nafa ka bon kosɛbɛ mɔgɔ yɛrɛ ka waribɔsɛbɛn baara la, yɔrɔ min na kartiw donni ni u bɔli bolo kelen-kelen bɛɛ la, o bɛ sɛgɛn joona.

 

Syntek bɛ pasif (passif) dilanRFID taamasiyɛn-bɔgɔli fɛnwkarti-bololanɛgɛ ni pasipɔri-tigi cogoya fila bɛɛ la. An tɛ jamming cards actives dilan sisan.

 

Access Card Threat min bɛ yen tiɲɛ na

 

Aw ye nin yɔrɔ in tɛmɛ ni aw bɛ danfara dɔn kaban wari sarali nanbarako ni donko karti cloning cɛ. Ni o fɛn fila bɛ i ko gɛlɛya kelen, i ka to ka kalan kɛ.

Hali HID ka lakanaba-seereyaw min bɛ sen na sisan, n’o ye Seos ye, o bɛ ni barikantanya sɛbɛnnen ye. San 2023 sɛbɛn dɔ min bɔra diɲɛ tɔnba fɛ min bɛ wele ko International Association for Cryptologic Research (IACR ePrint 2023/450, Sam Haskins ani Trevor Stevado) o y’a jira ko binkanni kɛra relay kan HID Seos kan ni jagokɛla ka off-the-shelf hardware ye min kɔnɔ Proxmark3 RDV4 bɛ yen. Binkanni in kɛra ɛntɛrinɛti ye i n’a fɔ relay kɔkolo, ni node fila ye minnu bɛ ɲɔgɔn sɔrɔ : kelen bilala karti sariyalen kɛrɛfɛ, kelen bilala laɲini kalanbaga kɛrɛfɛ. Ɲininikalaw ye da dɔ da wuli u ka laboratuwari kɔnɔ k’a sɔrɔ karti yamaruyalen in tun bɛ kilomɛtɛrɛ 1960 ɲɔgɔn bɔ. O binkanni in tun ka kan ka kɛ miniti kelen kɔnɔ ka gɛrɛ karti la k’a sɔrɔ a ma kɛ cogo si la, o ye ko ye min bɛ se ka da a la pewu biro kɔnɔna na walima mobili jɔyɔrɔ alifanta kɔnɔ.

 

RFID balili bololanɛgɛ tɛ kodɔn tiɲɛnenw labɛn. A bɛ min Kɛ o ye ka gɛrɛgɛrɛ finɛtiri Bɔ. Ni seereyaw bɛ Faraday dakun dɔ kɔnɔ tuma o tuma n’a ma jira kalanden dɔ la ni timinandiya ye, binkannikɛla tɛ se ka relay walima cloning sequence daminɛ fɔlɔ. Jɛkulu minnu bɛ badge kɔrɔw ka fɛnsɔrɔsiraw ɲɛnabɔ ni fɛnw sɛgɛsɛgɛli waatibolodalenw ye minnu suman sanw kɔnɔ, nin ye farikolo-ɲɛnajɛ-fɛɛrɛ ye min musaka ka dɔgɔ-.

 

Walasa ka kunnafoni wɛrɛw sɔrɔ RFID fɛɛrɛbɔ bɛ tali kɛ don o don baarakɛcogo la cogo min na, aw ye an ka kunnafoni kunbaba lajɛRFID baarakɛcogo minnu bɛ kɛ ɲɔgɔn fɛ iziniw kɔnɔ.

 

 

Yɔrɔ min na Seereyaw-Lakanali bololanɛgɛw ye Standard Issue ye kaban

 

Jɛkulu bɛɛ tɛ o fɛnw jate i n’a fɔ u yɛrɛ sago.

I ka Procurement Spec ka kan ka min fɔ sani i ka sɔn Supplier dɔ ma

 

Fɛn dilannenw ɲɛ fanba tɛna fɛn di i ma i mago bɛ min na walasa ka desizɔn ta. Ɲininkali duuru minnu ka kan ka kɛ sani i ka sɔn misali ɲinini dɔ ma, olu filɛ nin ye.

 

 

Yɔrɔ min bɛ ɲɛfɔli kɛ	Wajibiyacogo ɲɛfɔli
1. Frequency band min bɛ lakana	A fɔra iko jateden. "Blocks RFID" tɛ fɛn ɲɛfɔlen ye. Aw ka kan ka "13,56 MHz," "125 kHz," walima "dual-frequency" ye.Syntek ka bololanɛgɛw bɛ jate 13,56 MHz (HF/NFC) la ..
2. Fɛnɲɛnɛmaw labɛncogo	Aw ye ɲininkali kɛ ko conductive layɛrɛ dilannen don ni mun ye. Syntek ka jɔli : papiye datugulen kɛnɛma, aluminiyɔmu papiye lakanani layini, PE filimu kɔnɔna. Ji tɛ don a la ani a tɛ se ka tigɛ-.
3. Dimensionnel (daɲɛw) bɛnkan	Bolo ka kan ka kɛ ISO/IEC 7810 ID-1 hakɛw ye (85,6 × 53,98 mm). Syntek hakɛ dantigɛlenw : milimɛtɛrɛ 88 × 59 kartiw kama, milimɛtɛrɛ 140 × 97 pasipɔriw kama.
4. Bolo da wulicogo juguman	Faraday ka cakɛda bɛ baara kɛ dɔrɔn ni a dafara. Da min man dun, n’a bɛ karti ka antɛni sanfɛla da bɔ kɛnɛ kan, o bɛna a to kalanden barikamaw ka se ka jɛɲɔgɔnya kɛ ni puce ye.
5. MOQ & Lead waati	Samples gratuits (sannikɛla bɛ cikan sara), MOQ 500 ye bololanɛgɛ gansanw ye, 1000 ye custom-printed ye. Waati min bɛ kɛ baarakɛdon 7 fo 15 ye. Sarali PayPal, T/T, walima Alibaba fɛ.

 

Nin bolokɔni in bɛ min kɛ ani a tɛ min bila a nɔ na

 

A tɛ kunnafoniw siri. A tɛ baarakɛlaw ka dantigɛli kɛ. A tɛ i ka karti kɔrɔlen protocole sɛmɛntiya. Ni i ka dondaw kɔlɔsili sira bɛ MIFARE Classic baara, bololanɛgɛ dɔ tɛna o kodɔnbaliya dɔgɔya.

 

A bɛ min kɛ, o ye ka finɛtiri bɔ. Segin tan ni duuru minnu na i ka baarakɛla bɛ taama mobili jɔyɔrɔ dɔ kɔnɔ ni badge ye min ma lakana, o sirilen bɛ u cɛsirilan na wa? O waati de la, binkanni relay (relay) bɛ daminɛ. Bolo dɔ bɛ o yɔrɔ datugu. Per-unit musaka bɛ dɔrɔmɛ kelen jukɔrɔ, baarakɛcogo tɛ fɛn caman Changement de infrastructure wajibiya, wa a bɛ sɛgɛsɛgɛli kɛ ni sanni yamaruya kelen ye. Baarakɛyɔrɔ ɲɛmɔgɔ min b’a dɔn ko karti sɛnɛcogo bɛ se ka kɛ baarakɛnafolo saba ye, o ye bɔrɔ ye min bɛ se ka kɛ.

 

Syntek bɛ pre-production samples di fu walasa i ka se ka sɛgɛsɛgɛli kɛ i ka badge system yɛrɛ kan sani i ka i yɛrɛ bila volume la. Karti kɛcogo, a hakɛ jateminɛlen, ani sɛbɛnni wajibiyalen fɛn o fɛn ka kan ka kɛ, aw ka o ci an ma. An bɛna bɛnkan Sɛmɛntiya ani ka misali dɔ ci tile damadɔ kɔnɔ.