Video: CoAP puas muab kev ruaj ntseg?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
CoAP yog los ntawm lub neej ntawd khi rau UDP thiab xaiv tau rau DTLS, muab kev sib txuas lus siab kev ruaj ntseg . Ib qho bytes tom qab headers hauv pob ntawv raug suav hais tias yog lub cev lus.
Raws li, CoAP puas muaj kev nyab xeeb?
Raws li COV yog UDP raws tu qauv es tsis yog TCP raws tu qauv, TLS tsis siv los ntawm lub neej ntawd. Hloov chaw, encryption feem ntau ua tiav siv Datagram Thauj Txheej Kev ruaj ntseg (DTLS) thiab qee zaus nrog IPSec. Tseem muaj ob peb extensions rau COV uas ntxiv kev txhim kho rau nws cov peev xwm.
Tsis tas li ntawd, MQTT puas ruaj ntseg? Payload Encryption MQTT yog tom qab tag nrho cov lus raws tu qauv. Txawm li cas los xij hom encryption no tsis tiv thaiv tus password (yog siv) ntawm kev sib txuas nws tus kheej. Vim tias nws tsis koom nrog kev teeb tsa tus broker lossis kev txhawb nqa qhov no yuav yog ib txoj hauv kev zoo los tiv thaiv cov ntaub ntawv.
Hais txog qhov no, CoAP ua haujlwm li cas?
CoAp enables cov khoom siv sib txuas lus hauv Internet. COV yog qhov yooj yim ntawm HTTP raws tu qauv khiav ntawm UDP, uas pab txuag bandwidth. Internet Engineering Task Force Constrained RESTful ib puag ncig (IETF CoRE) Ua haujlwm Pab pawg tau ua cov txheej txheem loj ua haujlwm rau COV.
Dab tsi yog qhov yuav tsum tau nkag mus rau CoAP cov khoom?
Cov kev xav tau cuam tshuam rau COV tuaj yeem ua cov ntsiab lus raws li hauv qab no: REQ1: CoRE cov kev daws teeb meem yuav tsum yog qhov nyuaj tsim nyog rau kev siv los ntawm cov nodes muaj qhov txwv qhov loj me thiab txwv RAM (xws li microcontrollers siv nyob rau hauv cov nqi qis wireless feem ntau muaj nyob rau hauv qhov kev txiav txim ntawm 64-256K ntawm flash thiab 4- 12K ntawm RAM).
Pom zoo:
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