What are the precautions for smart card manufacturers to analyze the selection of CPU cards and M1 cards?

Time：2022-05-30 10:00:00

CPU chip card is a new star product in recent years. Because of its large-capacity anti-duplication and other characteristics, it is widely used in campus card, utility card, gas card, bus card, etc.; M1 card is a chip card with a large market share at present, M1 card Common chips include original S50, S70 cards, domestic Fudan chip FM11RF08, FM11R32, ISSI4439, etc.; both types of chip cards can be selected according to the system communication protocol and actual storage requirements.

Both the CPU card and the M1 card are one of the commonly used smart cards. It is difficult to tell the difference between the two from the appearance. So what is the difference between the M1 card and the CPU card? What is the difference between the two smart cards? Let's follow the editor of smart card manufacturer RZX Technology to learn about it.

In general, the CPU card is an upgraded product of the M1 card. It has more application methods and is more secure and reliable than the M1 card. With the popularization of the application of the CPU card and the reduction of the manufacturing cost, the CPU card will gradually replace in many fields. Application of M1 card. For the CPU card, it makes up for many shortcomings of the M1 card, so what are the main differences between the CPU card and the M1 card?

1. The difference between the storage space and partition of CPU card and M1 card:

The storage space of M1 card is 1K bytes for S50 and 4K bytes for S70. The storage space is limited, and it adopts fixed sector and block management.

The storage space of the CPU card is several times that of the M1 card, and a variety of capacities from 8K to 80K are available, which fully meets the current storage needs. It adopts a file storage method similar to the operating system, and the design is very flexible.

2. The key length difference between CPU card and M1 card:

The M1 card adopts a 6-byte password and is controlled by sector. Each sector can be encrypted individually.

The CPU card uses a 16-byte key, and can establish multi-level partitions according to actual needs, realize the combination control of multi-level partitions and multi-level keys, and improve the security in use.

3. Encryption authentication algorithm of CPU card and M1 card:

The M1 card uses a dedicated and undisclosed hardware logic algorithm, which has been cracked, and there are great security risks.

The CPU card adopts general public software or hardware acceleration algorithm, and can be customized, and has reached financial standards.

4. Read and write security module of CPU card and M1 card:

The M1 card uses the algorithm built-in key to send out, and the authentication method is the authentication of the card and the dedicated base station chip. This technology has been cracked.

The CPU card adopts a universal read-write module for transparent transmission, and cooperates with the SAM key algorithm. The authentication is carried out inside the cards of both parties. The encrypted random number is used in the transmission process, which greatly improves the security of reading and writing.

5. The transaction process between CPU card and M1 card:

The transaction process of the M1 card is simple, and the anti-pulling process needs to be customized.

The CPU card has financial standards, and can also be flexibly designed by the user, with a built-in anti-pull process.

6. Access control of CPU card and M1 card:

The M1 card can perform read-only, write-only, read-write, addition, and subtraction operations.

The CPU card flexibly designs authentication methods for different file types.

7. The CPU card has more secure advantages than the M1 card:

From the point of view of system security, the security of IC cards is also constantly improving, and the vitality of CPU cards is strong in terms of security. The CPU card can adopt a variety of security methods, and can even play a role in protecting the software system. A variety of different applications can be used at the same time, such as the storage structure of a virtual M1 card, that is, a card with multiple uses. The combined use of COS and software system improves the flexibility of operation.

RZX Technology is committed to the production and sales of smart cards and RFID electronic label products. The CPU chip card is the dominant product of RZX Technology. The commonly used chips for CPU cards are in stock all the year round, and the stock is sufficient. The chip material detection equipment is complete and the pass rate is high. The company also has personalized digital printing equipment, which can provide customized service of CPU card personalized portrait printing, fast delivery and guaranteed quality. Want a high-capacity anti-copy CPU card? But don't know how to choose? Consult relevant business personnel now!