Inkcazo eneenkcukacha ngomgaqo wokusebenza kobugcisa wenkonzo yokutshaja iPnC Plug&Charge -1

1, Isigaba sokwakha ukuthembana phakathi kwezithuthi kunye nezikhululo zokutshaja

Ukuqinisekiswa kobuwena:Isikhululo sokutshaja siqinisekisa ubuwena baso ngesatifikethi se-SECC (Supply Equipment Communication Controller), ngelixa isithuthi sisebenzisa isatifikethi se-V2G root certificate (Trust Anchor) esisethwe ngaphambili kwifektri ukuze siqinisekise ukuchasana. Ukuthintela ukuhlaselwa kwesatifikethi sobuqhetseba, inkqubo ingenise i-OCSP (Online Certificate Status Protocol). Kwimigangatho yamva nje ye-ISO15118-20, ukuqinisekiswa kokurhoxiswa kwe-real-time kuyimfuneko kuzo zonke izatifikethi (kubandakanya izatifikethi ze-Sub CA kunye neLeaf) ukuqinisekisa ukuba yonke ikhonkco lonxibelelwano iphantsi kweliso elingqongqo lokuthobela imithetho.

Kule nqanaba, isithuthi (i-EV) kunye nesikhululo sokutshaja (i-EVSE) ziyaxhawulana ngokusekelwe kwiprotokholi ye-ISO 15118. Emva kokugqiba umsebenzi wokufaka izibhamu kunye nokwakha ikhonkco lonxibelelwano lwedijithali, omabini amaqela aya kuthethathethana ukuze amisele uhlobo lwesicelo seProtokholi yoKhuseleko lweLayer yeTransport (TLS):

• I-TLS 1.2isetyenziswa kumgangatho we-ISO 15118-2;
• Xa usebenzisaI-ISO 15118-20umgangatho,I-TLS 1.3yamkelwe;

1. Isikhululo sokutshaja sibonisa ikhonkco laso lesatifikethi kwisithuthi sombane, kuquka isatifikethi seSupply Equipment Communication Controller (SECC) kunye nesatifikethi seCharge Operator (CPO) Intermediate Certificate Authority (Sub CA), ukuze kugqitywe ukuqinisekiswa kwesazisi esithembekileyo sesithuthi.
2. Izithuthi zombane zisebenzisa ii-trust anchors ezifakwe kwangaphambili (oko kukuthi izatifikethi zeengcambu ze-V2G ezimiselwe kwangaphambili ngaphambi kokuba isithuthi sizise kubasebenzisi) ukuqinisekisa uthotho olupheleleyo lwezatifikethi oluthunyelwe zizikhululo zokutshaja.
3. Izithuthi zombane ziya kuqinisekiswa ukuba azinazo izatifikethi: Phantsi komgangatho we-ISO 15118-2, izatifikethi ze-SECC ziyilwe ngexesha elifutshane (iinyanga ezi-2-3), kwaye imeko yokurhoxiswa kwezatifikethi ze-CPO Sub CA iqinisekiswa nge-Online Certificate Status Protocol (OCSP); Umgangatho we-ISO 15118-20 ufuna ukuba zonke izatifikethi ziqinisekiswe ukuba azinazo izatifikethi nge-OCSP.
4. Emva kokuba onke amanyathelo okuqinisekisa edlulisiwe, isithuthi sombane singaqinisekisa ubuwena obuthembekileyo besikhululo sokutshaja, kwaye idatha epheleleyo yonxibelelwano elandelayo iya kudluliselwa kusetyenziswa iindlela ezifihliweyo.

2, inqanaba lokuxoxisana ngendlela yokuqaphela ubuwena

Ingqiqo eyahlukileyo phakathi kwe-EIM kunye ne-PnC: Le protocol iyakwalela ngokungqongqo ukwenza "ukuqatshelwa kobuwena obubini" kubasebenzisi. Ukuba kufunyaniswe ukuba umsebenzisi uqale ngesandla nge-RFID okanye i-App (imo ye-EIM), isikhululo sokutshaja kufuneka siyiphelise ngokuzenzekelayo inkqubo yokuqalisa i-PnC ukuze kuthintelwe umngcipheko weshishini wokuhlawula kabini.

Umgangatho we-ISO 15118 uchaza iindlela ezimbini zokuqaphela ubuwena beseshoni yokutshaja:

• 1. Iindlela Zokuchonga Zangaphandle (i-EIM):ukugubungela amakhadi e-Radio Frequency Identification (RFID), amakhadi etyala, usetyenziso lweselula, iikhowudi ze-QR, njl.njl.;
• 2. Iplagi kunye nokutshaja:Indlela yokuqinisekisa ezenzekelayo ngokupheleleyo esekelwe kwizatifikethi.

Umqobo oyintloko:Izitishi zokutshaja aziyi kubonakalisa ubuwena obuphindwe kabini kubasebenzisi. Ukuba umsebenzisi ugqiba ukuqinisekiswa ngeendlela zangaphandle ezifana nekhadi le-RFID ngaphambi kokudibanisa umpu wokutshaja, izitishi zokutshaja kufuneka ziphelise umsebenzi weplagi kunye nokudlala oqalayo; Ngaphandle koko, kunokubangela ukuba isithuthi siqinisekiswe ngokuphindaphindiweyo ngesatifikethi sesivumelwano, nto leyo ekhokelela kumngcipheko wokuhlawula kabini.

3, isigaba sokuqinisekisa ubuwena besithuthi

Emva kokuba inkqubo ikhethe imo yokutshaja yeplagi kunye nokudlala, isithuthi sombane sithumela isatifikethi sesivumelwano kunye nesatifikethi seMobile Service Provider (MSP) Sub CA kwisikhululo sokutshaja. Ezi zatifikethi zingasentla zidityaniswe kwikhonkco elipheleleyo lesatifikethi, kwaye inkqubo yokuqinisekisa isazisi esiphambili iqaliswa ngokusesikweni. I-backend iya kwenza uhlolo oluninzi lokhuseleko ngaxeshanye ukuqinisekisa ngokupheleleyo ukuba iiseshoni zokutshaja zisemthethweni, ukuba semthethweni kweeakhawunti zokubhila, kunye nokuthintela umngcipheko wokwenziwa kobuqhetseba kwesazisi sesithuthi.

Ukuthintela ukuhlaselwa kwakhona (oko kukuthi, abaphangi abathintela imiyalezo yogunyaziso baze bayithumele ngokuphindaphindiweyo), le nkqubo ivelisa ikhowudi yomngeni engacwangciswanga ye-128 bit. Isithuthi kufuneka sisebenzise isitshixo sabucala ukusayina ikhowudi yomngeni, kwaye isikhululo sokutshaja siya kwenza uqinisekiso lwesiginitsha yenqanaba le-millisecond apha ekhaya sisebenzisa isitshixo sikawonke-wonke sesatifikethi sesivumelwano. Olu guqulelo olungenamda luqinisekisa ukuba imvume ekhawulezileyo ayifumaneki kwaye ayilahlwa.

1. Ukuqinisekiswa kobunyani beenqwaba zokutshaja kwiitsheyini zesatifikethi

Isitishi sokutshaja okanye inkqubo ye-CPO backend kufuneka igqibezele ezi ngqinisiso zimbini zilandelayo:

• Ukuqinisekiswa kobunyani:Qinisekisa ukuba zonke izatifikethi ezikwikhonkco lezatifikethi zingaphakathi kwexesha lazo lokusebenza;
• Ukuqinisekiswa kobunyani:Qinisekisa ukuba utyikityo lwedijithali olupheleleyo luyasebenza na ukusuka kwisatifikethi sesivumelwano ukuya kwisatifikethi seengcambu.

Imfuneko yokuqinisekisa indawo kukuba isikhululo sokutshaja sibeke kwangaphambili isatifikethi seengcambu esihambelanayo – ngesiqhelo isatifikethi seengcambu se-V2G esinikwa ngumsebenzisi we-PKI, kwaye kwezinye iimeko, isatifikethi seengcambu se-MSP (esinexabiso eliphantsi lokusetyenziswa).

2. Ukuqinisekiswa kwe-intanethi kwesimo sokurhoxiswa kwesatifikethi

Inxalenye yenkqubo yokuqinisekisa ixhomekeke kunxibelelwano lwe-intanethi, kwaye ukuqinisekiswa kwesimo sokurhoxiswa kwesatifikethi yenye yeenkqubo eziphambili. Isikhululo sokutshaja siya kuqalisa umbuzo kumphenduli we-OCSP osetwe kwangaphambili kwisatifikethi ukuqinisekisa ukuba ezi ntlobo zimbini zilandelayo zesatifikethi azirhoxiswanga:

• Isatifikethi se-CPO Sub CA (sisebenza kwimigangatho ye-ISO 15118-2 kunye ne-ISO 15118-20);
• Isatifikethi sesivumelwano (sisebenza kuphela kwimigangatho ye-ISO 15118-20);

3. Ukuqinisekiswa kwesimo seakhawunti yebhili

Emva kokuba ukutshaja kugqityiwe, inkqubo igqibezela ngokuzenzekelayo inkqubo ukusuka ekutshintshisweni kwedatha ukuya kwirisithi yenkxaso-mali: Emva kokuqinisekisa ubunyani besatifikethi, i-CPO iya kuqinisekisa ubunyani besivumelwano sokuhlawulisa somsebenzisi. Inkqubo iya kukhupha i-ID yomboneleli wenkonzo kwi-akhawunti yonxibelelwano lwezithuthi (EMAID), kwaye i-CPMS iya kudibanisa i-MSP ehambelanayo nale ID ukuqinisekisa ukuba i-akhawunti ayikho kwimeko yokurhoxiswa okanye yokurhoxiswa.

4. Inkqubo yokutshaja iqalile

Emva kokuqinisekisa ubuwena besithuthi sombane, isithuthi kunye nesikhululo sokutshaja ziya kulandela inkqubo yotshintshiselwano lwemiyalezo yomgangatho we-ISO 15118, zithethe ngemida yokutshaja kunye nexesha, kwaye ziqalise ngokusesikweni inkonzo yokutshaja.

Ukuze kugqitywe umsebenzi weplagi kunye nokutshaja wePnC (Plug&Charge), kuyimfuneko ukuseta kwangaphambili, ukugcina, kunye nokuqinisekisa isatifikethi sesivumelwano, kunye nokuqinisekisa inkqubo yezinto ezifihliweyo ezifakwe ngaphakathi kwisiphelo sesithuthi (EV) kunye nesiphelo senqwaba (EVSE).

Njengoko kukhankanyiwe apha ngasentla, kwinkqubo yeprotocol ye-TLS:I-TLS 1.2:ihlengahlengiswe kwi-ISO 15118-2;I-TLS 1.3:Iyahambelana ne-ISO 15118-20; Omabini amaqela onxibelelwano kufuneka abe neentlobo ezimbini zedatha engundoqo:Izinto zokwazisakwayeizixhobo zokuthembaPhakathi kwazo, indawo yokugcina isitshixo igcina isitshixo sabucala sesixhobo kunye nesatifikethi segqabi esihambelanayo, esisetyenziselwa ukungqina "ukuba semthethweni kobuwena"; i-inventory ye-trust igcina izatifikethi ze-CA ezithembekileyo (ii-trust anchors), ezisetyenziselwa ukuqinisekisa ubunyani bezatifikethi zomnye umntu kunye nokuphendula umbuzo "womda we-trust".