Can mi band simulate an encrypted access card?

Mi band can simulate access cards and elevator cards. To put it bluntly, it can simulate the operation of cpu on ic card. At present, it can directly simulate non-encrypted ic cards and virtual white cards. Officials say that non-encrypted ic cards can support access control, but as we all know, the access control system of non-encrypted ic basically does not exist. The early access control system was an ID card, and later it was changed to an ic, which has the ability to store date information and is convenient for property management. So this function is trivial. Let's start with the virtual white card, saying that property authorization is needed. I am even less optimistic about this for the following two reasons. First, the property will not give you authorization easily. In addition to their own ability, there are economic problems. It is certain to charge you, but the question is how much. Second, some friends think it doesn't matter to give some money, so the following conclusion may disappoint you, because the card issuer of the property is the standard card issuer of 13.56mhz, which means that only ic cards can be issued, and some can issue ID cards of 125khz, but the mi frequency band belongs to cpu analog cards, so their equipment can't read it at all. How to issue cards? So some friends' properties have been used up, but they still don't need them.

The key question is coming. Is it really useless? Of course not! You have to solve the problem yourself. First of all, the access cards and elevator cards in many communities work in a one-card-one-secret way, so the virtual white card can't be solved basically unless you can calculate the password according to the card number of the virtual white card and work. If you really can, I don't think you need to read what I wrote. So we should start with the simulation of non-encrypted cards.

I. Equipment

At present, there are only three tools that can be used to write cards on the market, namely, PN 532 (around 40 yuan),122 u (around 200 yuan) and PM3 (around 400 yuan). But the first two can't operate the cpu analog card, so the device needs PM3 and the latest Iceman firmware to operate the cpu analog card.

Second, the preparatory work

If you need a uid or cuid card, or if you can store the card data in your computer, you can use your own ic card. If you use ic card, you must first use the three devices mentioned above to crack the password, read the data, and then delete the passwords of all sectors (0- 15 sectors). Only in this way can the mi band be simulated. If you use a UID card or a cuid card, all you need to do is to change their card numbers (sector 0 and block 0) to be the same as your own ic with the above equipment, and then simulate them with a bracelet. After the simulation, the bracelet has become a clone of its own ic card, but because there is no password, the card reader will not recognize it, so it cannot be used.

Third, let's call it a day

Write the saved ic card complete information directly into the bracelet with pm3, because the bracelet is a virtual card and the card number cannot be changed, so the previous steps are very important. Write it in about 30 seconds and call it a day.

Fourth, personalized suggestions.

Some friends want to simulate multiple cards in the bracelet, such as their own home, work unit and parents' home, but it is also more troublesome to change cards in the bracelet. The best way is to integrate the data of different sectors after reading the data, then this card will have multiple functions at the same time and it will be very convenient to use. Of course, the premise is that the sectors of these data cannot be duplicated. If your family has 1 fans, your company has 2 fans, and your parents have 3 fans, that's fine. If you have 1 fans in your family and 1 fans in your company, it won't work.