首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
"Blink" Technology A) Tired of all that time-consuming swiping? Credit cards using "contactless" technology allow users to pay
"Blink" Technology A) Tired of all that time-consuming swiping? Credit cards using "contactless" technology allow users to pay
admin
2021-12-15
89
问题
"Blink" Technology
A) Tired of all that time-consuming swiping? Credit cards using "contactless" technology allow users to pay for merchandise by holding the card near a special reader instead of swiping it or handing it to a clerk. The announcement of new "blink" cards by Morgan Chase & Co. marks the first push to introduce the cards to US consumers on a wide scale. This technology is already in use to some extent in Europe and Asia.
B) The new blink credit card is just like a regular credit card in many ways. It has the account holder’s name and the account number embossed (凸印) on the front of the card. On the back is a magnetic strip containing the account information, so the card can be used anywhere regular credit cards can be used. The key difference is inside the card.
C) Embedded within the blink card is a small RFID (radio frequency identification) microchip. When the chip is close enough to the right kind of terminal, die terminal can get information from the chip— in this case, the account number and name. So instead of swiping the magnetic strip on the card through a standard credit-card reader, card holders simply hold their card a few inches from the blink terminal. The card never leaves the card holder’s hand.
D) As with standard credit-card transactions, the terminal then sends the information via phone line to the bank mat issued the card and checks the account balance to see if there is room on the card for the purchase. If there is, the bank issues a confirmation number to the terminal, the sale is approved and the card holder is on his or her way.
E) Credit cards using blink technology employ RFID. There are many forms of RFID. For example, Wal-Mart has experimented with putting RFID chips on their merchandise so they can track inventory automatically.
F) Blink uses a specific kind of RFID developed under International Standard 14443. ISO 14443 has certain features that make it particularly well-suited to applications involving sensitive information, such as credit-card account numbers. First, data transmitted by ISO 14443 chips is encrypted (加密). Second, the transmission range is designed to be very short, about 4 inches (10cm) or less.
G) Recent additions to the standard allow ISO 14443 technology to store biometric data such as fingerprints and face photos for use in passports and other security documents. To understand how the contactless card and terminal work together, first we have to talk about induction. In 1831, it was already known that an electric current produced a magnetic field. That year, Michael Faraday discovered that it worked the other way around as well—a magnetic field could produce an electric current in wires that passed through the field. He called this induction, and the law that governs it is known as Faraday’s Law.
H) In some cases, induction is something electrical engineers try to avoid. For instance, if the electric lines in your neighborhood run too close to die phone lines, die magnetic field produced by the electric lines can generate voltage in the phone lines. This voltage shows up as "noise" in the signal passing through the phone lines. Shielding and proper orientation of the lines can prevent this interference.
I) For RFID devices such as blink cards, engineers have harnessed induction. Each blink card contains a small microchip as well as a wire loop. The blink terminal gives off a magnetic field in the area around it. When a blink card gets close enough, the wire loop enters the terminal’s field, causing induction. The voltage generated by the induction powers the microchip. Without this process, called inductive coupling (耦合), each blink card would have to carry its own power supply in the form of a battery, which would add bulk and weight and could eventually run out of power. Because the power is supplied by the terminal, the blink system is known as a passive system.
J) Once the blink card has power flowing to it from the terminal, the processor then transmits information to the terminal at a frequency of 13. 56 MHz. This frequency was chosen for its suitability for inductive coupling, its resistance to environmental interference and its low absorption rate by human tissue. Instruction sets built into the processor encrypt the data during transmission.
K) Whenever credit cards are involved, people are worried about security. Sending the credit-card data to a terminal via a radio signal might not seem very secure. But when the process operates properly, it’s actually more secure than using a magnetic-strip credit card. The information on a magnetic strip can be read, altered or duplicated using a variety of devices that have been available for years. The encryption built into a blink card makes this particular form of theft impossible. Also, using the blink card allows the user to keep the card in his or her hand the entire time. This could prevent someone from seeing the account number and name on the card.
L) A signature is not required when using a blink card, which leads to security concerns. Chase feels that the encryption and other security features built into blink make the card secure without the need for a signature, which would slow down the transaction and defeat the purpose of blink altogether. They even suggest that it makes the transaction safer, since the clerk never sees the card or account number. The problem, of course, is that if someone gets his or her hands on your blink card, there’s no need to verify anything at all in order to use it in a store. But blink users are no more accountable for fraudulent (欺诈的) charges than any other credit-card user.
M) There have been reports of problems in the testing of contactless RFID credit cards; however, that led to additional security concerns. In some cases, if two or more terminals were close together, not only did both terminals read the card, but the read range of each terminal increased to as much as 30 feet (9m). Even if the terminal is operating within the proper range of 4 inches, some people are worried that they could accidentally walk too close to a terminal and end up paying for someone else’s purchase. The simplest safeguard against this is probably merchants positioning the terminals in such a way as to make this unlikely.
N) The worst case scenario (情景) involves someone getting their hands on a blink terminal and modifying it to increase the range. Potentially, someone could set up the terminal at a crowded location and collect the credit-card data of anyone who came within the terminal’s read range. This probably won’t be a concern at first, since few terminals will be available, but if the technology matures, blink terminals could fall into the hands of criminals.
O) There is a way to protect blink cards from giving out their information to unauthorized terminals, either accidentally or due to criminal activity. If the card is placed in a sleeve lined with metal, it will not function. According to Chase, blink speeds up transactions, particularly at drive-throughs, by as much as 20 percent. This may have more to do with the fact that blink cards don’t require a signature than with the swiping issue.
P) So why institute blink technology at all? The answer may be Chase’s national press release, which states, "Research has shown that customers who use blink cards often spend more per transaction. " In addition, the novelty of blink could lead consumers to apply for Chase credit cards so they can use the new technology. The end result is more money for the company supplying the cards.
Q) What else does the future hold for contactless credit cards? The biggest impact could be seen in the form factor of credit cards. Much of the credit-card market is driven by personalized cards with images of the user’s favorite sports team, national parks and other graphics that create additional appeal. Without the restriction of die magnetic strip, credit "cards" could come in any shape, from keychain fobs to miniature toys or sculptures to coins that fit easily into a pocket. An RFID chip could even be sewn into a jacket sleeve or implanted into your hand. Ultimately, consumer acceptance will determine how the technology is adopted.
Keeping the blink card in hand during the entire transaction could reduce the possibility of information leaking.
选项
答案
K
解析
由题干中的keeping the blink card in hand定位到K)段最后两句。同义转述题。定位段提到信用卡的使用令人担忧的往往是安全问题,而闪卡看起来似乎更安全些,在交易过程中持有者一直将其握在手中,这样可以防止有人看到卡片上的账号和姓名。题干中的reduce the possibility of information leaking对应原文中的“prevent someone from seeing…”,故选K)。
转载请注明原文地址:https://kaotiyun.com/show/UDx7777K
0
大学英语六级
相关试题推荐
A、Herpreviousdebthadn’tbeenclearedyet.B、Hercredithistorywasconsideredpoor.C、Shehadapparentlyaskedfortoomuch.
A、Theirappreciationofhelpfromtheoutsiders.B、Theirsenseofsharingandcaring.C、Theirreadinesstoadapttotechnology.
A、Granttheemployeesalongholidaytorelax.B、Hiremoreemployeestoincreaseproductivity.C、Preparesometelevisionsforem
A、Heoftenborrowsmoneyfromothers.B、Hehasjustreceivedhismonthlypay.C、Hecan’tpayoffhiscreditcards.D、Hehaskept
A、Difficultbutrewarding.B、Variedandinteresting.C、Time-consumingandtiring.D、Demandingandfrustrating.B根据上题,考生可推测选项使用形容
A、Launchinganinitiativetoincreasetheincomeofcoffeeproducers.B、Eliminatingilliteracyoncropproductionandmarketing
A、Launchinganinitiativetoincreasetheincomeofcoffeeproducers.B、Eliminatingilliteracyoncropproductionandmarketing
随机试题
A.温脾汤B.黄龙汤C.济川煎D.新加黄龙汤热结里实,气阴不足证,宜选
患者,女性,75岁,患高血压20年,平日血压控制在140/90mmHg,糖尿病10年,应用降糖药物控制血糖。近半月来偶发心前区疼痛,闷痛多持续1~2分钟,经休息可缓解,1天来心前区疼痛持续6小时不缓解,精神烦躁,恶心呕吐1次,故急送医院。测BP130/90
患者,女性,34岁,阑尾穿孔腹膜炎手术后第6天,护士查体发现患者体温39.2℃,伤口无红肿,排便次数增多,混有黏液,伴有里急后重,该护士考虑患者并发了
某建设工程合同纠纷经第二审人民法院审理,裁定发回原审人民法院重审。下列不属于发回重审原因的是()。
下列责任承担的方式,属于行政处罚的是()。
证券公司申请为期货公司提供中间介绍业务资格,应当符合的条件包括()等。
2×20年11月18日,甲公司董事会决议处置一项生产设备。2×20年12月31日,甲公司与乙公司就该项生产设备签订了出售合同。合同约定:甲公司以700万元的售价向乙公司出售该项设备,该项交易自合同签订之日起10个月内完成,原则上不可撤销,但因外部审批及其他
一、注意事项1.本次考试包括给定资料和作答要求两部分。总时间为150分钟,建议阅读资料为40分钟,作答时间为110分钟,总分100分。2.请在答题卡上指定的位置填写自己的姓名、报考部门,填涂准考证号。考生应在答题卡指定的位置作答,未在指
将7个人分成三组,一组3个人,另两组2人,不同的分组数为a,甲、乙分到同一组的概率为p,则:
我国城乡以劳动者的劳动联合和资本联合为主的股份合作制经济的性质是
最新回复
(
0
)