At present, many developers who build smart communities or buildings have to go to the one-card project, but there are still many doubts and misunderstandings about whether to use IC cards or ID cards. Here are two important differences between the two cards to help you get out of the wrong zone.
First, IC card and ID card definition
The IC card is called the Integrated Circuit Card, also known as the Smart Card. It can be read and written, has large capacity, has encryption function, reliable data recording, and is more convenient to use, such as card system, consumer system, etc. Currently, there are mainly PHIFIPS Mifare series cards.
ID card full name identification card (Identification Card), is a non-writable proximity card, with a fixed number, mainly SY format of Taiwan SYRIS, the United States HID, TI, MOTOROLA and other ID cards.
Second, why does the IC card have to be initialized (ie encrypted), and the ID card is not used?
1. When the IC card is in use, it must first pass the unique two-way key authentication between the IC card and the reading and writing device before the related work can be performed, so that the entire system has extremely high security.
Therefore, it is necessary to initialize (ie, encrypt) the factory-issued IC card, in order to generate an unbreakable card system key in the IC card after leaving the factory, so as to ensure the safe issuing mechanism of the card system.
2. After the IC card is initialized and encrypted, when the user gives it to the user, the customer issues the system through the IC card, and each user card generates a private key of the system.
In this way, it is ensured that the user cards issued in other user systems cannot be used in the system, thereby ensuring the specificity of the system, thereby ensuring the safe use mechanism of the system.
3, ID card and magnetic card, just use the "card number" only, in addition to the card number, the card does not have any security function, its "card number" is open, bare. Therefore, the ID card is an "inductive magnetic card", which simply does not require the need for initialization or initialization.
4. Why is the initialization process not left to the user? This is because:
1) If the user initializes itself, it cannot prevent the internal staff from cheating. Because when the user is using the card system, if an employee uses the card bought by the society to initialize it at will, he can freely issue the resident card that can be used by the resident, and even recharge the card at will, which will not only cause serious cheating consequences, but also This will lead to serious security holes in the use of the card system.
2) In addition, if the user buys the inferior factory card and initializes it himself, but it cannot be used on the system, it will make the system use poor performance or flaws, which will cause the accident responsibility to be unclear.
3) The initialization process is performed at the manufacturer, mainly the basic needs of the IC card security key authentication mechanism, and also the profile of the IC card system integrator. Just like the city public transport IC card, before the card is used in the bus system, the key of each card must be factory-encrypted.
4) If the user lacks professional management and loses the key card for initial authorization, the user and the manufacturer will not be able to replenish the card. Therefore, the initialization work is done by the manufacturer, and there is security.
Third, the comparison between IC card system and ID card system
1. Security:
The security of the IC card is much larger than that of the ID card. The card number in the ID card is read without any permission and is easy to copy.
The reading and writing of the data recorded in the IC card require corresponding password authentication, and even each area in the card has different password protection, which fully protects the data security. The password of the IC card to write data and the password for reading data can be Set to different, provide a good hierarchical management to ensure system security.
2, recordability:
The ID card cannot write data, and its recorded content (card number) can only be written by the chip manufacturer once. The developer can only read the card number and use it. It is impossible to formulate a new number management system according to the actual needs of the system.
The IC card can not only read a large amount of data by an authorized user, but also can write a large amount of data (such as a new card number, user's authority, user data, etc.) by an authorized user, and the content recorded by the IC card can be repeatedly erased.
3. Storage capacity:
The ID card only records the card number; the IC card (such as the Philips mifare1 card) can record about 1000 characters of content.
4, offline and networked operation:
Since there is no content in the ID card, the card holder's authority and system function operation are completely dependent on the support of the computer network platform database.
The IC card itself has recorded a large amount of user-related content (card number, user data, permissions, consumption balance, etc.), which can be run away from the computer platform, and realizes the operation mode of online and offline automatic conversion, which can achieve a wide range of uses. Less wiring requirements.
5, card expansion application:
Because ID card has no record and no partition, it can only rely on network software to process the information of each subsystem, which greatly increases the dependence on the network; if the user wants to add function points after the ID card system is completed, additional wiring is required. This not only increases the difficulty of construction, but also increases unnecessary investment. Therefore, using an ID card as a system makes it difficult to expand the system and it is difficult to implement a real card.
The IC card storage area itself is divided into 16 partitions, each partition has a different password, and has multiple subsystem independent management functions, such as the first partition to achieve access control, the second partition to achieve consumption, the third partition to achieve employee attendance and the like. Fully realize the purpose of the card, and can achieve a completely modular design. Even if the user wants to add function points, there is no need to re-route, just add hardware and software modules, which is convenient for the IC card system to upgrade and expand at any time to achieve a smooth upgrade. Reduce duplication of investment.
For example, a certain card in Shenzhen has established an ID card card system. However, due to the above drawbacks of the ID card system, the system cannot be put into daily use, so the system can only be completely abolished, and then the IC card card system is adopted.
6. Maintenance and operation of intelligent systems:
For example, if the computer issues a new user ID card, it must manually download all ID card numbers to each ID card reader controller through the ID card system network, otherwise the ID card is used as an invalid card. Cannot be used; to change user rights, enter the ID card number with permission on each ID card controller.
Another example: after the system is put into use, it is often necessary to add an ID card. If you add a card or modify the permissions of a card, you must enter the card number on all controllers available on the card. The workload and time of manual operation and maintenance are greatly increased. In addition, if there are more than one card subsystem, or the subsystem is slightly larger, the complexity of system maintenance management will increase geometrically, which will directly lead to the system not working properly.
The IC card system uses IC card. After the IC card is issued, the card itself is a data information carrier. Even if the communication network is unreachable, the read/write controller can realize the offline read/write card operation as usual. If you change the user rights, you can write the user's rights directly in the IC card. If you add the user to change the permissions, you only need to modify the card. You don't have to modify each controller at all. From the technical mechanism, the administrator can avoid changing the controller everywhere. The problem of the use of the card has achieved the goal of improving management efficiency and achieving intelligent management.
7, cost performance:
Although ID cards and ID card readers are cheaper than IC card cards and card readers, the price of the two systems is comparable to the configuration of the entire card system (wiring cost, structural composition), and only the IC card system can operate. Stable and reliable, the cost performance of the IC card system is much higher than that of the ID card system.
In addition, considering the current hardware environment of the community is not very mature, the system maintenance personnel are not familiar with the computer knowledge, it is impossible to establish or maintain a complete network system to support the 24-hour continuous network operation of the ID card card system. Therefore, the smart IC card card system that meets the needs of networking and offline operation is the only choice for today's users.
8. There are two conclusions in the card industry: ID cards cannot be made into a card (as mentioned above), and ID cards cannot be used for consumption:
The biggest reason why ID cards can't be consumed is the "credit" problem. Because the ID card has no key security authentication mechanism and can't write the card, the consumption data and the amount can only be stored in the database of the computer, and the computer is managed by the property management personnel. There is completely a cheating space in terms of mechanism and mechanism. In addition, if the consumption data collapses due to computer problems, there will be disastrous consequences.
Therefore, it is impossible to make consumers agree with the authority (ie credit) of the ID card managed by the community. Too many money disputes can only make the ID card consumption system unusable.
The IC card consumption system, because of its high reliability and unbreakable compliance with the ISO9001 international security certification mechanism, is more important because the "e-wallet" or IC card is in the hands of the user, and each amount of consumption is "mastered" by the user. In the hands, so the IC card consumption system is a very "credit" consumer system. Of course, in the networked state, there is data in the computer that is consistent with the user's IC card. For the system, this also implements dual secure data matching.
9, the IC card as an ID card for the "weird" phenomenon:
Some ID card devices and system manufacturers, due to the strong advantages of IC cards, have also claimed that their systems can use IC cards, but in fact, like the use of ID cards, only the card number of the IC card public area is used, and the ID card is not changed. The system structure does not have the security mechanism of key authentication and reading and writing owned by the IC card. Therefore, it is inferred that it is still an ID card card system. Compared with the traditional ID card system, it is only a waste of resources, and it is more deceptive. It also cannot have the advantage of the IC card card system.
Fourth, the conclusion
The IC card can integrate complex key authentication and identity authentication logic, and will replace the previous magnetic card and ID card (ie, inductive "magnetic card").
Due to the inherent keyless authentication, readable and writable, and completely dependent on network operation defects of the ID card system, it has not adapted to the growing demand for smart card in today's residential property, and it must only be used as a transitional product. The well-known magnetic card is gradually phased out.
The process of ID cards being continuously eliminated is accompanied by the process of vigorous development of smart IC card cards!
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