[ANJIELO SMART security knowledge-ONE] Distinguish between IC cards and ID cards in access control systems

[ANJIELO SMART security knowledge-ONE] Distinguish between IC cards and ID cards in access control systems

Regarding the difference between IC cards and ID cards, not only laymen cannot understand it, but many people in the industry still cannot understand it. Today we will discuss and learn together: What is the difference between channel gate IC access control and ID access control.
There are similarities and differences between ID access control and IC access control systems. In fact, the scope of use of both is similar. However, IC access control has encryption reading and writing functions and a large storage capacity. It is widely used in all-in-one cards and membership cards, while ID cards are read-only cards. , widely used in access control and parking lots.

Comparing the two systems, the differences are as follows:
1. Security: IC access control uses IC cards, and ID access control uses ID cards. The security of IC cards is much greater than that of ID cards. There is no authority to read the card number in the ID card and it is easy to copy. Reading and writing of the data recorded in the IC card requires corresponding password authentication. Even each area in the card has different password protection to fully protect data security. The password for writing data in the IC card and the password for reading data can be changed. Set to different, providing a good hierarchical management method to ensure system security.
2. Recordability: The ID card cannot write data, and its recorded content (card number) can only be written once by the chip manufacturer. Developers can only read the card number for use, and cannot formulate new number management based on the actual needs of the system. system. IC cards can not only read a large amount of data by authorized users, but also write a large amount of data (such as new card numbers, user permissions, user information, etc.) by authorized users. The content recorded in the IC card can be erased and written repeatedly.
3. Storage capacity: mifare1 card) can record about 1000 characters of content.
4. Offline and online operation: Since there is no content in the ID card, the card holder's permissions and system function operations 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 information, permissions, consumption balance and other large amounts of information), and can be completely run away from the computer platform, realizing automatic conversion between online and offline, and can be used in a wide range of applications. Less wiring required.
5. One-card expansion application: Since the ID card has no records and no partitions, 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, which not only increases the difficulty of project construction, but also increases unnecessary investment. Therefore, using ID cards as a system makes it difficult to expand the system and implement a true all-in-one 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 for access control, the second partition for consumption, the third partition for employee attendance, etc. It fully realizes the purpose of the all-in-one card and can achieve a completely modular design. Even if the user wants to add function points, there is no need to wire anymore. He only needs to add hardware and software modules. This facilitates the future upgrade and expansion of the IC card system at any time and achieves smooth upgrades. Reduce duplication of investment. For example, a community in Shenzhen once established an ID card system. However, due to the above-mentioned shortcomings of the ID card system, the system could not be put into daily use. Therefore, the system could only be completely scrapped and later replaced by an IC card system.
6. Maintenance and operation of intelligent systems: For example, if a new user ID card is issued by the computer, all ID card numbers must be manually downloaded one by one to each ID card reading controller through the network of the ID card system. , otherwise the ID card will be regarded as an invalid card and cannot be used; if you want to change user permissions, you need to enter the authorized ID card number on each ID card controller. Another example: after the system is put into use, ID cards are often added. Every time a card is added or the permissions of a certain card are modified, the card number must be entered on all controllers available for the card. This is This greatly increases the workload and time of manual operation and maintenance. In addition, if there are more one-card subsystems, or if the subsystems are slightly larger, the complexity of system maintenance and management will increase exponentially, which will directly cause the system to fail to operate normally. In the one-card system using IC cards, after the IC card is issued, the card itself becomes a data information carrier. Even if the communication network is blocked, the read-write controller can still realize offline read-write card operation. If user permissions are changed, the user permissions can be written directly in the IC card. New users only need to modify the card to change the permissions. There is no need to modify each controller. Technically, it avoids managers from changing controllers everywhere. The issue of card usage permissions has achieved the purpose of improving management efficiency and realizing intelligent management.
7. Cost-effectiveness: Although ID cards and ID card readers are cheaper than IC cards and card readers, from the perspective of the composition of the entire one-card system (wiring cost, structural composition), the prices of the two systems are equivalent, while only IC cards The operation of the card system can be stable and reliable, so the cost performance of the IC card system is much higher than that of the ID card system. In addition, considering that the hardware environment of today's residential communities is not very mature and system maintenance personnel are not very familiar with 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 system. Therefore, a smart IC card system that can adapt to both online and offline operations is the only choice for today's users.

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