In daily life, passwords are used more and more widely, from computers to mobile phones to password locks at home. However, there are also many people who are worried: Is the fixed password of the password lock really safe? In reality, all kinds of decoding methods make our intelligent life encounter difficulties.
As for the combination lock, some users have raised such questions: the secret of the combination lock is fixed. If a thief hides in the corner and peeks when opening the door, and comes down several times, he secretly writes down the pressing order of the password of my combination lock, then the next time I am away, he can easily break into the house.
This sounds really bad. In response to these concerns of users, all fingerprint locks of Debao Shield are equipped with a more secure "virtual password technology" to completely solve the hidden dangers of password peeping.
"Virtual password technology" is to add any number of digits before and after the correct password, so long as there is a continuous correct password in the middle, the door can be opened, which can effectively prevent the password from leaking.
Just don’t change the real password order, and insert multiple numbers in the front, back or middle to realize unlocking. For example, if the correct password is 123456, you can add (8)(6)(7)123456(0)(2)(3) when entering. Note that other numbers are added in brackets.
Compared with the fixed password, the virtual password has a higher security level and is more difficult to be snooped, so the risk of password leakage is smaller, and the length is arbitrarily increased. Every time the password is changed, the security of the password can be greatly improved, and it is more difficult for thieves or thieves to obtain the real password.
So is there a maximum limit for virtual password? Yes, it depends on the length of the password set by the manufacturer of the smart door lock. For example, the maximum password limit is 20 digits, so the total length of the virtual password and password cannot exceed 20 digits.
Compared with fixed passwords, virtual password technology is undoubtedly more secure, but is it unbreakable? No matter how high the security level of virtual password technology is, there is still the risk of leakage. By snooping password input for many times, we can integrate and compare the password numbers and find out the intersection between arrays, so as to obtain the real password and crack the door lock password.
Therefore, the security of fake passwords is relative, and users are more troublesome when inputting, which slightly increases the efficiency and difficulty of inputting. However, if you remember the original passwords, these minor problems can be basically ignored.
The security of password lock is not high. Therefore, the core of fingerprint lock or other biometric smart lock lies in fingerprint unlocking or other identification methods. Password unlocking is generally used as an ancillary function, and biometric security is higher, which is also one of the important development directions of smart locks.
At present, most fingerprint locks on the market have multiple unlocking functions. For security requirements, fingerprint locks with virtual password technology are the first choice for purchase. In normal use, it is also recommended to use fingerprints, mobile phone remote control and other ways to unlock, and use less or no passwords to unlock, mechanical keys to unlock and other ways.