dhoomrapaan ki shurooaat jyaadaatar kishoraavastha ya kishoraavastha ke aarambhik daur mein hoti hai. dhoomrapaan mein jokhim ke tatv aur vidroh hota hai, jo ki aksar yuva logon ko aakarshit karta hai. uchch star ke model aur saathiyon ki upasthiti bhi dhoomrapaan karne ko protsaahit kar sakti hai. choonki kishor vayaskon ki tulana mein apne saathiyon se adhik prabhaavit hote hain isliye maata-pita, school tatha svaasthya peshevar in logon ke cigarette peene ke prayaas ko rokane mein aksar asafal hote hain.[58][59]
udaaharan ke liye baitari sanchaalit selyular telephone aksar ek kam shakti ke enaalaug agrasira ke istemaal se base station se radio signal badhaane aur sangati bithaane ke liye karti hai. haalaanki ek base station ke paas grid ki shakti hoti hai aur apekshit vidyut ka prayog kar sakti hai, lekin bahut lacheele software radio mein. is tarah ke base stationon ke liye aasaani se nae selular maanakon mein prayukt sanket prakriya ko aasaani se riprograam kiya ja sakta hai.
poore Europe mein aur vishesh roop se peris mein (pranaali RATP dvaara 1995 mein shuroo ki gayi), lion, bordo, grenobal, nainsi aur maarsile France mein, poore purtagaali raajamaarg vyavastha mein aur kai purtagaali saarvajanik car park mein, Milan, turin, Italy mein nepals aur floreins aur Belgium mein brasels, kailipso antararaashtreeya maanak ke anuroop RFID paas ka saarvajanik parivhan pranaali ke liye upayog kiya jaata hai. unka upayog ab Canada (mauntriyl), maiksiko, isaraail, Columbia mein bogota aur parera, naarve mein stavaangar, laksamabarg, aadi mein bhi kiya jaata hai.

fir bhi anya kootlekhit protokaul, anadhikrut paathakon ke khilaaf gopaneeyata haasil karne ke prayaas mein hain, haalaanki ye protokaul abhi anusandhaan charan mein hain. RFID taig ko surakshit karne mein ek badi chunauti, taig ke bheetar kampyooteshanal sansaadhanon ki kami hai. maanak kootalekhan takaneek mein adhikaansh kam keemat vaale RFID upakaranon mein upalabdh sansaadhanon ki tulana mein adhik ki aavashyakta hoti hai. RSA security ne ek prototaaip upakaran ko peteint karaaya hai jo sthaaneeya star par ek maanak takkar parihaar protokaul ke dakhal se RFID sanketon ko jaam kar deta hai, or prayokta ko agar vaanchhit ho to pehchaan rokane ki anumati deta hai.[64] vibhinn neetigat upaayon ka bhi prastaav kiya gaya hai, jaise ki RFID taig waali vastu ko ek udyog maanak lebal ke saath chihnit karna. RFID suraksha, kuchh varshon se ek bahut sakriya anusandhaan kshetr hai, jismein 2002 se lekar aaj tak 400 se adhik vaigyaanik pepar prakaashit kiye gaye hain. is kshetr mein sandarbh ki ek vyaapak soochi RFID Security and Privacy Lounge mein pai ja sakti hai.
Singapore mein, saarvajanik parivhan ki bason aur trainon mein nishkriya RFID ko laagoo kiya gaya hai jise EZ-Link card ke roop mein jaana jaata hai. bheed bhare shahar ke aatanrik kshetron mein yaataayaat ko char tol dvaara niyantrit kiya jaata hai jise stord vailyoo card (kaishakaard ke roop mein gyaat) ke upayog ko ek sakriya taiging pranaali ke saath upayog dvaara laagoo kiya jaata hai.
rajistar hastaantaran laujik mein dviaadhaari sankhya flip flop ke samoohon mein sangraheet hain jise rajistar kaha jaata tha. pratyek rajistar ka aautaput taaron ka bandal hai jise ek "bas" kaha jaata hai jo anya aakalan ke liye us number ko paas rakhata hai. yeh aakalan keval sanyojan laujik ka ek bhaag hai. pratyek aakalan ke paas ek bas aautaput hota hai aur ye kai input rajistaron se juda ho sakta hai. kabhi-kabhi ek rajistar ke paas inke input par bahusanketak hota hai jisse yeh kai bason mein se kisi ek se number ko store kar sakta hai. vaikalpik roop se kai cheejon ke aautaput ko bafars ke maadhyam se joda ja sakta hai jo ek ko chhodkar sabhi upakaranon ke aautaput ko band kar sakta hai. input se pratyek rajistar ke naye data ko sveekaar karne par anukramik state machine niyantran karta hai.
agar system vaanchhit degree ki vishvastata ke pratinidhitv karne ke liye paryaapt digital deta ka bhandaaran karta hai to parimaaneekaran truti ko kam kiya ja sakta hai. ek nirdhaarit enaalaug sanket ko theek-theek prastut karne ke liye kitni digital data ki aavashyakta hoti hai usaki jaankaari naaikvist-shaannon namoona prameya ek mahatvapoorn nirdesh pradaan karta hai.
kuchh pranaaliyon mein yadi digital deta ka ek bhaag lupt ho jaae ya galat tareeke se vyavahrut hon, to sambandhit deta ke vishaal khandon ka arth poori tarah se badal sakta hai. kyonki kleef ifekt ke kaaran, upayogakartaaon ke liye bataana mushkil hai ki koi vishisht system vifalta ke kagaar par sahi tha ya fir vah asafal hone se pehle bahut adhik shor ko sahan kar sakta hai ya naheen.
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