[new civilian evening paper · is new civilian net] before period of time circulates socially " second of small black box opens intelligent door lock " the hearsay causes a society to be anxious: Whether is intelligent door lock put in safe hidden trouble? In disappear assist the comparison that released a 29 intelligence door lock this morning experiments report. The report shows, back door of attack of small black box locks up 28 sample to was not opened, buy on a line only, brand label is called " inferior rub this " without the manufacturing company, sample that tags without product model, after be being atttacked by small black box, open. Want to choose to use regular brand product only, open intelligent door lock to second of small black box this thing, consumer need not panicky.
Experiment this by in disappear assist commissioner of consumer of city of committee of committee of rights and interests of consumer of protection of associated Sichuan province, Shenzhen city consumer, Fosan is begun. Sample of 29 intelligence door lock all is spent for consumer attention and the trademark is well-known the product that spends sales volume of platform of taller, network to be located in front row, average consumer buys staff member imitate. Among them network platform buys 22 (person of solid spy, Deshiman, green rice, TCL, wisdom home, fruit is added, Panasonic(is loose fall) , Er of all things power, sea, achieve dimension, top solid, VOC, Haolishi, hypostatic inn buys 7 sample (cervine guest, triumphant enlighten be an official (K7) , Asia-Pacific day can, SAMSUNG (SHP-DR708) , triumphant enlighten be an official (K8) , SAMSUNG (SHP-P718 LBG/CN) , Xi Mo) . The price that sample locks up covers 1099 yuan to differ to 5899 yuan from every, the price differs bigger.
A sample can be opened by small black box
So called " small black box is atttacked " it is to point to technology of electromagnetism mistake infuse. Should bring to bear on to intelligent door lock below circumstance of strong electromagnetism field, door lock can appear breakdown calls the police, systematic lock is decided, the phenomenon such as circuit attaint. Compared an experiment this to choose than " electronic guard against theft locks up a standard " tower above of field strong 50V/m the puissant electromagnetism field of 30 times is strong, had a test to 29 sample. The result shows, back door of attack of small black box locks up 28 sample to was not opened, buy on a line only, brand label is called " inferior rub this " without the manufacturing company, sample that tags without product model, after be being atttacked by small black box, open.
The risk of existence of security of open of sample information identification card of 85.7%
The means opening a lock of 29 intelligence door lock includes dactylogram to open lock, password to open lock and identification card to open a lock commonly 3 kinds. In 29 sample, the safety of sample password open of 48.3% is put in the risk, the sample dactylogram of 50% identifies open safety to be put in the risk, the risk of existence of security of open of sample information identification card of 85.7% . But as we have learned, information identification card is added close can solve problem of safety of information identification card effectively. Undertake upgrading to system and algorithm, can solve password and dactylogram to identify safe problem.
Performance of sample lock firm firmware is not good
According to GB21556-2008 of national mandatory standard " lock brings requirement of completely current technology " the requirement that locks up to class A, the bolt length that 29 sample lock up all accords with a requirement (be more than be equal to 20 millimeter) , but bolt intensity is only 12 sample lock accords with a requirement. In addition, compare an experiment to consult the method that mechanical guard against theft locks up key cylinder to destroy an experiment, the common and manual machinist such as use screwdriver, forceps, hand hammer is provided, undertake till be opened,be destructived to the mechanical lash-up key cylinder of sample, at the same time the record destroys the time of open.
In 29 sample that experiment this quite, nominal " limited company of technology of Shanghai Xi Mo communication " manufacturing model is " XMSH-DL121 " sample destroys an experiment in key cylinder in, because outside force action makes the plastic join between lash-up key cylinder and separation and reunion rupture, bring about lash-up key cylinder thereby cannot movement of drive separation and reunion, fail finally to be opened in order to destroy the kind of key cylinder, another nominal " clique luck " brand type is " H300S " sample opens lock function without lash-up machinery.
Prevent destroy warning function to remain to strengthen
According to GB21556-2008 of national mandatory standard " lock brings requirement of completely current technology " requirement, the lock is in carry out continuously by accident operation and when defending the face suffers outside force to destroy, should give out sound automatically or call the police solely directive or alarm signal. Show via detecting, there are 15 locks to be able to issue alarm signal in 29 sample.
29 sample service life all achieves open 10000 times
According to GB21556-2008 of national mandatory standard " lock brings requirement of completely current technology " requirement, the service life of intelligent door lock do not answer under 3000. According to everyday switch door calculates 10 times, can use 300 days only, cannot satisfy the consumer anticipation to product life of intelligent door lock apparently. Accordingly, this second test increases experiment number.
The test shows as a result, the iteration that sample locks up 3000 times when finishing standard provision is opened after shutting, proceed experiments, till be opened repeatedly,close total number 10000 times, 29 sample all did not appear any unusual.
Intelligent door lock consumes clew:
Buy channel option: Buy door lock of regular brand intelligence through normal channel as far as possible, when electric business platform is bought, official flagship store is worth to trust more. Buy intelligent door lock and ask for bill, convenient in the future thought fors the time being.
Product of intelligent door lock chooses: Select product of brand intelligence door lock as far as possible. Examination product is packed clear explicitly model of name of product of lock of guard against theft of line out electron, brand, norms, manufacturer home, manufacturer location, safe level, bright show the information such as executive standard, notice whether the product has pattern plate of certificate of approval, manual, starting a hole to reach at the same time guarantee the file material such as card. At the same time exterior of strip inspection product, requirement exterior is neat, without breach, without rustily wait.
Means opening a lock chooses: The choice when choosing intelligent door lock fits his product, do not seek more way opening a lock painstakingly. Open a lock generally speaking means is more, potential risk is bigger.
Lash-up opens a lock: Proposal consumer chooses appliance to have lash-up opens the intelligent door lock that locks up a function, to major general a lash-up opens key spoon reservation to be in except the safety beyond the home the ground is nodded, judge lash-up to lock up key cylinder sort at the same time through key appearance, the key cylinder safety factor of odd platoon billiards is inferior, do not suggest consumer is chosen.
Attention of choose and buy: Product face plate just is checked to the sale as far as possible when the choose and buy advocate material type, combine individual experience at the same time or a few skill use makings, charge for the making of sth. to wait to the product undertake be judginged simply. The price cannot serve as the only basis of the choose and buy, but the value is overt under the market the product quality of average level assures hard, do not suggest consumer is chosen.
Dactylogram identifies module alternative: At present the dactylogram on market identifies module to basically optical dactylogram module and capacitance dactylogram identify module (semiconductor dactylogram identifies module) . Usually, capacitance dactylogram identifies module (semiconductor dactylogram identifies module) identify rate, identify rate want excel optics dactylogram to identify module, especially for the user with more shallow to grain of child, old person, dactylogram, dry finger, this one advantage that capacitance dactylogram identifies module is more clear. In the meantime, capacitance dactylogram identifies module to have capacity of certain the dactylogram that prevent bogus, but its surface is able to bear or endure scratch ability is poorer, and the water that goes up to finger is more sensitive, can immediate impact identifies successful rate. The environmental suitability that optical dactylogram identifies module is stronger, its collect a window to use toughened glass commonly, the compression with be had certain, wear-resisting, acid-proof alkaline, besmirch is corroded wait for ability, but in dactylogram grain more shallow, hand points to dry or below the circumstance of desquamate, identify lead general meeting to reduce, open speed is decelerated apparently. Consumer uses actual condition and demand to undertake choosing in him Lv of the take an examination when choosing dactylogram identifying module. (new civilian Pan Zixuan of reporter of evening paper learn on job)
