{"id":20314,"date":"2022-03-09T09:06:18","date_gmt":"2022-03-09T09:06:18","guid":{"rendered":"https:\/\/knowhow.distrelec.com\/uncategorized-hu\/a-qr-kod-felemelkedese\/"},"modified":"2022-03-09T09:21:47","modified_gmt":"2022-03-09T09:21:47","slug":"a-qr-kod-felemelkedese","status":"publish","type":"post","link":"https:\/\/knowhow.distrelec.com\/hu\/it-es-digitalis-vilag\/a-qr-kod-felemelkedese\/","title":{"rendered":"A QR-k\u00f3d felemelked\u00e9se"},"content":{"rendered":"\n

Amikor m\u00e1r mindenkinek, m\u00e9g az \u00e1ltal\u00e1nos iskol\u00e1s gyermekeknek is van mobiltelefonjuk, az eszk\u00f6z\u00f6k haszn\u00e1lata mellett folyamatosan fejl\u0151dik az is, ahogyan seg\u00edtenek nek\u00fcnk a vil\u00e1gunkkal val\u00f3 kapcsolattart\u00e1sban. Az egyik alkalmaz\u00e1s, amely a k\u00f6zelm\u00faltban a Covid\u201319 vil\u00e1gj\u00e1rv\u00e1ny alatt \u00fajj\u00e1\u00e9ledt, a QR-k\u00f3d.<\/p>\n\n

\n\t<\/div>\n\n

Mik azok a QR-k\u00f3dok?<\/h2>\n\n
\"\"<\/figure>
\n

A \u201eQuick Response\u201d (Gyors v\u00e1lasz) r\u00f6vid\u00edt\u00e9se QR-k\u00f3dok, amelyen fekete n\u00e9gyzetek feh\u00e9r alapon helyezkednek el r\u00e1csos form\u00e1ban, \u00e9s ezek beolvashat\u00f3 k\u00f3dk\u00e9nt m\u0171k\u00f6dnek. A legt\u00f6bb okostelefon-kamera k\u00e9pes beolvasni, majd feldolgozni \u0151ket.<\/p>\n\n\n\n

A QR-k\u00f3d olyan adatokat t\u00e1rol, amelyek a feldolgoz\u00e1s ut\u00e1n megjelennek a beolvas\u00f3 eszk\u00f6z\u00f6n. A QR-k\u00f3dok legt\u00f6bbsz\u00f6r webes hivatkoz\u00e1sokra, e-mail-v\u00e1zlatokra, alkalmaz\u00e1slet\u00f6lt\u0151 hivatkoz\u00e1sokra mutatnak, valamint telefonh\u00edv\u00e1sok kezdem\u00e9nyez\u00e9s\u00e9re is szolg\u00e1lhatnak, \u00e9s ez a felsorol\u00e1s k\u00f6zel sem teljes. A beolvas\u00e1s \u00e9s a feldolgoz\u00e1s k\u00e9palkot\u00f3 eszk\u00f6zzel, majd azt k\u00f6vet\u0151en a Reed-Solomon hibajav\u00edt\u00e1si elv alapj\u00e1n m\u0171k\u00f6dik, amelyet olyan n\u00e9pszer\u0171 technol\u00f3gi\u00e1kn\u00e1l is haszn\u00e1ltak, mint p\u00e9ld\u00e1ul a CD-k \u00e9s a Blu-ray lemezek.<\/p>\n<\/div><\/div>\n\n

A QR-k\u00f3dok t\u00f6rt\u00e9nete<\/h2>\n\n

A QR-k\u00f3dokat 1994-ben tervezt\u00e9k meg a jap\u00e1n aut\u00f3iparban val\u00f3 haszn\u00e1latra. A Denso Wave v\u00e1llalatn\u00e1l dolgoz\u00f3 Masahiro Hara olyan m\u00f3dszert keresett a j\u00e1rm\u0171vek gy\u00e1rt\u00e1s k\u00f6zbeni nyomon k\u00f6vet\u00e9s\u00e9re, amely nagy sebess\u00e9g\u0171 alkatr\u00e9sz-beolvas\u00e1st tett lehet\u0151v\u00e9. A fekete-feh\u00e9r k\u00f3dok megtervez\u00e9s\u00e9hez a Go j\u00e1t\u00e9k b\u00e1bui szolg\u00e1ltak alapul, \u00e9s csak\u00fagy, mint a n\u00e9pszer\u0171 t\u00e1rsasj\u00e1t\u00e9k, a QR-k\u00f3dok is hamar sz\u00e9les k\u00f6rben nagy n\u00e9pszer\u0171s\u00e9gre tettek szert.<\/p>\n\n

A QR-k\u00f3dok elterjed\u00e9s\u00e9ben jelent\u0151s szerepet j\u00e1tszott a mobiltelefon-technol\u00f3gia, amely lehet\u0151v\u00e9 tette azok beolvas\u00e1s\u00e1t. 2002-ben megjelent az els\u0151 mobiltelefon, amely m\u00e1r k\u00e9pes volt a QR-k\u00f3dok beolvas\u00e1s\u00e1ra \u00e9s feldolgoz\u00e1s\u00e1ra, \u00e9s a nagyk\u00f6z\u00f6ns\u00e9g els\u0151 alkalommal \u00e9lvezhette ennek a k\u00e9nyelmes technol\u00f3gi\u00e1nak az el\u0151nyeit. A n\u00e9pszer\u0171s\u00e9ge viszonylag lass\u00fa terjedt el, \u00e9s csak a legelk\u00f6telezettebb k\u00f6vet\u0151kre korl\u00e1toz\u00f3dott. Akkoriban m\u00e9g mindig egy k\u00fcl\u00f6n alkalmaz\u00e1st kellett let\u00f6lteni az \u00faj k\u00f3dok beolvas\u00e1s\u00e1hoz. Ez 2017-ben, az \u00faj iPhone-szoftver, az iOS 11 megjelen\u00e9s\u00e9vel megv\u00e1ltozott. Az \u00faj oper\u00e1ci\u00f3s rendszerben az iPhone saj\u00e1t kameraalkalmaz\u00e1sa k\u00e9pes volt beolvasni QR-k\u00f3dokat \u2013 nem volt sz\u00fcks\u00e9g harmadik f\u00e9l alkalmaz\u00e1sok let\u00f6lt\u00e9s\u00e9re.<\/p>\n\n

Pascal Keller, a Distrelec Sv\u00e1jc m\u0171szaki t\u00e1mogat\u00f3i csoport vezet\u0151je is j\u00f3l eml\u00e9kszik a QR-k\u00f3dok lass\u00fa terjed\u00e9s\u00e9re:<\/p>\n\n

Azt hiszem, 2015-ben kapt\u00e1k fel nagyon \u2013 kellett lennie egy beolvas\u00f3 alkalmaz\u00e1snak a telefonodon, \u00e9s eml\u00e9kszem, hogy egy sz\u00f3r\u00f3lap h\u00e1tulj\u00e1n l\u00e9v\u0151 QR-k\u00f3dot olvastam be, hogy let\u00f6ltsek valamit. Ezut\u00e1n egyre t\u00f6bbf\u00e9le m\u00f3don kezdt\u00e9k alkalmazni, p\u00e9ld\u00e1ul \u00faj eszk\u00f6z\u00f6k v\u00e1s\u00e1rl\u00e1sakor a csomagol\u00e1son volt egy QR-k\u00f3d, amely az internetre felt\u00f6lt\u00f6tt haszn\u00e1lati \u00fatmutat\u00f3ra ir\u00e1ny\u00edtott. Az\u00f3ta el\u00e9gg\u00e9 elterjedt lett Sv\u00e1jcba!<\/em><\/p>Pascal Keller, Distrelec Sv\u00e1jc<\/em><\/strong><\/cite><\/blockquote>\n\n

QR-k\u00f3dok a Covid\u201319 idej\u00e9n<\/h2>\n\n

2019 v\u00e9g\u00e9n a QR-k\u00f3dok tov\u00e1bbra is hasznosnak bizonyultak az olyan ipar\u00e1gakban, mint p\u00e9ld\u00e1ul a marketing, az \u00fczleti \u00e9let, az oktat\u00e1s \u00e9s a non-profit piac. Azonban a 2020-t\u0151l kezd\u0151d\u0151, Covid\u201319 ellen folytatott k\u00fczdelem sor\u00e1n voltak k\u00e9pesek igaz\u00e1b\u00f3l megmutatni egyed\u00fcl\u00e1ll\u00f3 funkci\u00f3jukat, \u00e9s seg\u00edtettek mindenkinek biztons\u00e1gban maradni.<\/p>\n\n

Erik Skogly, az Elfa Distrelec Norv\u00e9gia orsz\u00e1gos \u00e9rt\u00e9kes\u00edt\u00e9si vezet\u0151je felfigyelt erre az \u00faj trendre:<\/p>\n\n

Ahogy \u00e9n l\u00e1tom, legal\u00e1bbis n\u00e9h\u00e1ny \u00e9vvel ezel\u0151ttig, a norv\u00e9gok nem igaz\u00e1n haszn\u00e1lt\u00e1k a QR-k\u00f3dokat. De 2020 febru\u00e1rj\u00e1ban, amikor a vil\u00e1gj\u00e1rv\u00e1ny kezdett felgyorsulni, a v\u00e1llalkoz\u00e1sok, orvosok, k\u00f3rh\u00e1zak \u00e9s m\u00e9g sokan m\u00e1sok elkezdt\u00e9k \u00e9rint\u00e9smentes inform\u00e1ci\u00f3\u00e1tad\u00e1sra haszn\u00e1lni \u0151ket. L\u00e1ttam, hogy \u00e9ttermekben men\u00fck helyett haszn\u00e1lt\u00e1k a k\u00f3dokat, illetve nyomon k\u00f6vet\u00e9si c\u00e9lokb\u00f3l a k\u00f3rh\u00e1zakban \u00e9s a rendel\u0151kben ezekkel regisztr\u00e1lt\u00e1k a l\u00e1togat\u00e1st \u2013 a QR-k\u00f3dok a praktikus \u00e9s egyszer\u0171 haszn\u00e1latuk r\u00e9v\u00e9n nagyszer\u0171 eszk\u00f6zz\u00e9 v\u00e1ltak mindenki sz\u00e1m\u00e1ra. Nagy \u00e9rdekl\u0151d\u00e9ssel v\u00e1rom, hogy milyen \u00faj helyeken fogj\u00e1k haszn\u00e1lni ezeket a k\u00f3dokat!<\/em><\/p>Erik Skogly, Elfa Distrelec Norv\u00e9gia<\/em><\/strong><\/cite><\/blockquote>\n\n

A QR-k\u00f3dok haszn\u00e1lata a vil\u00e1gj\u00e1rv\u00e1ny idej\u00e9n val\u00f3ban v\u00e1ltozatos volt. Kanad\u00e1ban a Vancouver M\u0171v\u00e9szeti Gal\u00e9ri\u00e1ban a gal\u00e9ria l\u00e1togat\u00f3i \u00fatmutat\u00f3j\u00e1nak digit\u00e1lis v\u00e1ltozata t\u00f6lthet\u0151 le vele<\/a>, Shanghai QR-k\u00f3dokat haszn\u00e1la felvon\u00f3kban a biztons\u00e1g jav\u00edt\u00e1s\u00e1ra \u00e9s v\u00e9szhelyzetek kezel\u00e9s\u00e9re<\/a>, az Egyes\u00fclt \u00c1llamokban pedig a Walmart QR-k\u00f3dos fizet\u00e9st vezetett be<\/a>. A t\u00e1rsadalmi t\u00e1vols\u00e1gtart\u00e1s egyik nagyszer\u0171 eszk\u00f6ze, amely seg\u00edt elker\u00fclni a m\u00e1sokkal val\u00f3 sz\u00fcks\u00e9gtelen \u00e9rintkez\u00e9st, \u00e9s minim\u00e1lisra cs\u00f6kkenti a megosztott fel\u00fcletek meg\u00e9rint\u00e9s\u00e9t.<\/p>\n\n

Haszn\u00e1latuk elterjed\u00e9se nyilv\u00e1nval\u00f3 volt: A MobileIron \u00e1ltal k\u00e9sz\u00edtett tanulm\u00e1nyban<\/a> a v\u00e1laszad\u00f3k 47%-a \u00e9szrevette a QR-k\u00f3d haszn\u00e1lat\u00e1nak n\u00f6veked\u00e9s\u00e9t a vil\u00e1gj\u00e1rv\u00e1ny idej\u00e9n. Azonban az, hogy egyre nagyobb m\u00e9rt\u00e9kben f\u00fcgg\u00fcnk a QR-k\u00f3dokt\u00f3l, n\u00e9h\u00e1ny \u00faj k\u00e9rd\u00e9st vet fel a biztons\u00e1gukkal kapcsolatban.<\/p>\n\n

A QR-k\u00f3d biztons\u00e1ga<\/h2>\n\n

Mint tudjuk, egy QR-k\u00f3d egy n\u00e9gyzetm\u00e1trix pixeles pontokkal. Ez azt jelenti, hogy a l\u00e9trehozott QR-k\u00f3dot nem lehet felt\u00f6rni \u2013 a QR-k\u00f3d technol\u00f3gi\u00e1ja \u00f6nmag\u00e1ban nem jelent biztons\u00e1gi kock\u00e1zatot. Azonban, mint minden weboldal vagy technol\u00f3gia, a QR-k\u00f3dok is k\u00e1rosak lehetnek, ha nem megb\u00edzhat\u00f3 felad\u00f3t\u00f3l sz\u00e1rmaznak. A MobileIron meg\u00e1llap\u00edtotta, hogy m\u00edg a v\u00e1laszad\u00f3k 69%-a magabiztosan meg tudja k\u00fcl\u00f6nb\u00f6ztetni a rosszindulat\u00fa URL-eket, a v\u00e1laszad\u00f3k mind\u00f6ssze 37%-a gondolta \u00fagy, hogy k\u00e9pes megk\u00fcl\u00f6nb\u00f6ztetni egy rosszindulat\u00fa QR-k\u00f3dot. Emiatt a felhaszn\u00e1l\u00f3k a kibert\u00e1mad\u00e1sok h\u00e1rom f\u0151 t\u00edpus\u00e1nak ki vannak t\u00e9ve: adathal\u00e1szat, rosszindulat\u00fa szoftverterjeszt\u00e9s \u00e9s k\u00e1ros weboldalakra mutat\u00f3 hivatkoz\u00e1sok. Ezekhez a t\u00e1mad\u00e1sokhoz t\u00f6bbnyire hamis posztereket hoznak l\u00e9tre, mint p\u00e9ld\u00e1ul saj\u00e1t QR-k\u00f3dokkal vagy rosszindulat\u00fa QR-k\u00f3dos matric\u00e1kkal ragasztj\u00e1k fel\u00fcl a nyilv\u00e1nos helyen l\u00e9v\u0151 sz\u00f3r\u00f3lapok eredeti QR-k\u00f3djait.<\/p>\n\n

A felhaszn\u00e1l\u00f3k a legjobban \u00fagy v\u00e9dekezhetnek az ilyen t\u00edpus\u00fa t\u00e1mad\u00e1sok ellen, ha \u00e9beren figyelnek: ellen\u0151rzik, hogy nem ragasztott\u00e1k-e fel\u00fcl az adott QR-k\u00f3dot, nem adj\u00e1k meg szem\u00e9lyes vagy bejelentkez\u00e9si adataikat az adathal\u00e1szat elker\u00fcl\u00e9se \u00e9rdek\u00e9ben, illetve a tov\u00e1bbl\u00e9p\u00e9s el\u0151tt ellen\u0151rzik az URL-eket. El\u00e9rhet\u0151 t\u00f6bb biztons\u00e1gi alkalmaz\u00e1s is a QR-k\u00f3dokhoz, ilyen p\u00e9ld\u00e1ul a Norton Snap, amelyek QR-k\u00f3d-beolvas\u00f3k\u00e9nt m\u0171k\u00f6dnek, be\u00e9p\u00edtett biztons\u00e1gi funkci\u00f3juk megv\u00e9dik a felhaszn\u00e1l\u00f3t a QR-k\u00f3don kereszt\u00fcli kibert\u00e1mad\u00e1sokt\u00f3l.<\/p>\n\n

A QR-k\u00f3dok j\u00f6v\u0151je<\/h2>\n\n

B\u00e1r m\u00e1s sok \u00e9ve haszn\u00e1lunk QR-k\u00f3dokat, a Covid\u201319 vil\u00e1gj\u00e1rv\u00e1ny r\u00e1vil\u00e1g\u00edtott arra, hogy milyen hasznos lehet a technol\u00f3gia a mindennapi \u00e9letben. A MobileIron \u00e1ltal k\u00e9sz\u00edtett tanulm\u00e1nyban a v\u00e1laszad\u00f3k t\u00f6bb mint 58%-a szeretn\u00e9 l\u00e1tni, hogy a j\u00f6v\u0151ben sz\u00e9lesebb haszn\u00e1lj\u00e1k a QR-k\u00f3dokat, \u00e9s a hat\u00f3s\u00e1gok, illetve a v\u00e1llalkoz\u00e1sok is felsz\u00e1llnak erre a vonatra, hogy kihaszn\u00e1lj\u00e1k ezt a k\u00e9nyelmes technol\u00f3gi\u00e1t. Ahogy mobiltelefonjaink \u00e9s m\u00e1s k\u00e9sz\u00fcl\u00e9keink is folyamatosan fejl\u0151dnek, biztosak vagyunk abban, hogy a QR-k\u00f3doknak sz\u00e1mos \u00faj \u00e9s izgalmas alkalmaz\u00e1sa fog megjelenni.<\/p>\n","protected":false},"excerpt":{"rendered":"Amikor m\u00e1r mindenkinek, m\u00e9g az \u00e1ltal\u00e1nos iskol\u00e1s gyermekeknek is van mobiltelefonjuk, az eszk\u00f6z\u00f6k haszn\u00e1lata mellett folyamatosan fejl\u0151dik az…\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_appearance_grid":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[888],"tags":[],"coauthors":[],"class_list":{"0":"post-20314","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-it-es-digitalis-vilag","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nA QR-k\u00f3d felemelked\u00e9se - 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