The relevance of implementing blockchain in the IoT

on 05/04/2019, by Jon Gold, IDG NS (adapted by Jean Elyan), Networks, 1072 words

Recently, thecompaniesrealizethatI’IoTmaybeassociate a lotoftechnologiesITand theblockchainthe technology ofdistributed register the basis ofcrytpocurrencies– is no exception. Yet, ifin certain circumstancesthesetwo phenomena can be complementary,do not expect an explosion oftechnologyIoTbases ontheblock chain.


the basis, theunderstanding ofblue chain technologyocs can be counter-intuitive.That is whyIt iswithout a doubtbest to considertheblockchainas a sort of distributed ledger thatcannedan immutable traceof thetransactions. Each blockchaincontains the recordsecureof a transactionor other datato preventIeurfalsification,eachn so muchlinked to previousby a cryptographic hash.So thatany tampering with the invalid blocktheconnection. knots just about any material with aCPU – communicate over a networkpeerto peerdecentralized for pashare data and ensure theirvalid in the chain.SelonNirKshetriprofessor of management at the University of North CarolinaGreensborothesystem works because all the blocksifgrantonthespecificitydata they save. If someonetrymodify a transactionalready validon a given node, the rest of the data on the networkprevents him from doing so.The old data record isimmutable,explained againNirKshetri.

Thissecurity technologyis very effectiveif there is notofactormalware that manages to take control ofall nodesof thechaof blocks (the famous attackof the51%), the protected data cannot be falsified or manipulated. It is therefore notthunderousthattheblock chaininterestedbusinessesof the sectorIoT. According to JayFallah,CTOand co-founder ofNXMLabsa startupspecializedinthe safety ofI’IoT,put aside theability totheblockchain securely distribute reliable information about anetwork,the other attraction of the solution is its position in the technology stack.Block chaintosituatesa crossroadvery interesting.HASover the last 15years,computer processing has accelerated to the levelfromstorage,of theCPU,etcbutdevelopments inthenetworkingare veryrecent,he remarked. Theblockchainis notin itselfnetwork technology is notno longer adata technology is both that time .

Complementarity of
blockchainand of theIoT

Each sellerIoTwill justify differently what makestheblock chainrelevantforits environment.Nevertheless,the point of viewby AllisonClift Jenning,CEOof filament,afoBlockchain publisher forcompany,sums it up pretty wellthe general approach.All actors whowantworkintrust,andhavethempracticeare stillveryarchaic,areofgood candidatespotentialfor blockchain,did-shedeclare.This is the case for example of thesales ofvehiclessecond hand,a subject that concernsparticularlyFilament.In fact, the companyworkit witha big jerkDetroit automakerto create a platformoftrusted vehicles. Adevicebranchon the diag portnosticof the vehiclesecond handtraced backtheminformation andconsign lare given ina blockchain,forconstitutesra historyimmutableof his condition. The systemalso lets you know if the airbags havealready worksifthe vehiclewas floodedandvs. Nonedistributerused cars ornoneprodishonest tenant cannoteditthesegive, andif he disconnected the device, the vehicle would be considered suspicious.

According to Elvira Wallis, vice-presidentseniorand global lead for the implementation ofI’IoTat the house ofSAP,today,trustand data validation are the mainpatternsimplementationofthe block chaininI’IoT.In most casesof usesthat wetreatrelate to monitoring andthe tracing ofproductshas shedeclare. As an example, she cites atracking systemofhigh-end food productsofthen the place of productionto the place of sale.Theknots ofthechainofblockshave been installed oncrates and trucks,in order toto report traceability informationirrefutablesthroughout the transport. For instance,thetimeduring whichasteakhast refrigerated at such and such a temperature,thedistancethat he has traveledtoday, andvs.

Of theimplementationsnot always relevant

Thesuppliersoffer manyblockchain based productscenssanswer different casesof uses. Each operates an implementationtechnologyblockchainsome of whichnotlook alikenot much anymore the classic block chain, linear, mine, used incryptocurrencies. That meansthatthe company buys acapacity for one casespecific use. AccordingcsillaZsigrisenior analyst of 451Researchlittlecompanies havethe expertise needed to implement a systemsecuredown on thechainblocks.But, asettingapplication inintelligent of technologyblockchainis to play to its strengths, creating a reliable platform foron critical information.The simple addition ofa diapertrust and validationthis is where thetrueadded valueof the blockchainsaidMrsZsigri.

However,according to experts,MrsifI’implementationof theblock chainfor someapplicationsIoTisfairly well understood, it does not apply in all casesof uses. Apply a chain of blocks ofnon-transactional systems (hetherehasexceptions,this is the case ofconfiguration product based on the NXM blockchainLabsfor devicesIoT)is notagoodstrategy. If there is no need to share data between two different parties – as opposed to simply transferring data from one sensor to another – blockchain is generally meaningless, as itdon’t bringnoneof thevaluesaddssthat we findin most implementationsIoTnewsthey:data analysis.Wenot’sothatat the beginning ofthe era ofthe chain ofblockssaidAlissonClift-Jennings.Theblockchainisslowerethan a databaseclassicoftensheis not even readable,andit has no search engine.Finally, bynature, sheislittletransparent.

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The relevance of implementing blockchain in the IoT


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