Can the card of the CPU be copied?
The simple answer is NO, a CPU card cannot be cloned or copiedusing standard tools like those used for ID or IC cards.
Unlike older RFID cards (like Mifare Classic/M1) which have fixed algorithms that have been cracked, a CPU card is essentially a small computer with its own operating system and high-level encryption (usuallyDES/AES).
Why they are secure:
Dynamic Authentication:When the card talks to the reader, they perform a "handshake" that changes every time. Even if someone intercepts the data, it cannot be reused.
Hardware Security:The chip is designed to self-destruct or lock if someone tries to physically tamper with it or perform a side-channel attack.
Encrypted Storage:The data isn't just stored; it is hidden behind a complex cryptographic wall.
For an access control system, using CPU cards is currently the highest level of security available to prevent unauthorized duplication.
CPU Card Security: Why They Cannot Be Cloned Like Standard Mifare Cards
In the world of access control, security is a race between encryption and duplication. For years, theMifare Classic (M1) 13.56MHz cardwas the global standard.
However, as cloning tools became widely available, many businesses found their "secure" buildings vulnerable to $5 handheld duplicators.
At S4A Industrial Co Limited, we are increasingly transitioning our high-end engineering projects to CPU Cards. But why are they so much more secure? Let’s break down the technical difference in simple terms.
1. The "Static Storage" vs. "Micro-Computer" Difference
To understand the difference, imagine a traditional Mifare card as alocked suitcase. If someone steals the key (the fixed encryption algorithm), they can open the suitcase and copy everything inside.
A CPU Card, however, is like abank teller. It doesn't just "sit there" and let you read data. It has its own operating system (COS), a microprocessor, and a random number generator. When it interacts with an S4A RFID Reader, it doesn't just show an ID number; it performs a complex mathematical "conversation."
2. The Power of Triple DES / AES Encryption
Standard IC cards use a fixed logic that, once cracked, stays cracked. CPU cards utilizeTriple DES (3DES) or AES encryption.
Dynamic Authentication:Every time you tap a CPU card on an S4A controller, the "handshake" is unique. Even if a hacker intercepts the radio signal today, that data will be useless tomorrow because the next handshake requires a different mathematical result.
No "Backdoor":There are no known "universal keys" or cloning devices that can bypass the hardware-level security of a CPU chip.
3. Why This Matters for Your Security System
If your facility uses older 125KHz ID cards or Mifare 13.56MHz cards, a visitor or disgruntled employee could clone a badge in seconds using a device bought online.
By upgrading to S4A’s CPU-compatible access control series, you eliminate the "cloning" threat entirely. This is why CPU cards are the mandatory choice for:
Government and Military installations.
Financial institutions and Banks.
High-end residential complexes managed via theTTLock Appor standalone professional controllers.
4. S4A Recommended Solutions
On our official website, we offer a range of hardware specifically designed to support the advanced security of CPU cards:
S4A Pro Series Readers:Specifically optimized for high-speed CPU card decryption.
Waterproof Standalone Controllers (IP67):Our A80 and EB-series models can be configured to read CPU card sectors, ensuring that your outdoor gates are as secure as your server rooms.
Encrypted Card Issuers:We provide the tools for factories and managers to issue their own encrypted CPU cards, ensuring total control over the "Master Key."
CPU Card Security: Why They Cannot Be Copied Like Mifare Cards
The "Cross-Test" Guarantee
We understand that transitioning to new technology can be complex. At S4A, we stand by our product quality. If you are troubleshooting our units, we recommend aCross-Test:
install two identical units on the same controller. If one functions perfectly and the other exhibits a fault, we provide a responsible repair service to ensure your facility stays protected.
Conclusion
Is it worth the upgrade? Yes.While standard IC cards are sufficient for low-security areas, the CPU cardis the only way to ensure your credentials cannot be copied.
Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.
Si vous êtes intéressé par nos produits et souhaitez en savoir plus, laissez un message ici, nous vous répondrons dès que possible.
s4aapprécier toutes vos demandes et sincèrementespère profiter d'une relation commerciale fructueuse à long terme avec vouspartager les bénéfices mutuels,si vous avez des questions, n'hésitez pas à nous contacter.
Réseau IPv6 pris en charge
français
English
Deutsch
русский
italiano
español
português
العربية
Türkçe
Tiếng Việt
Indonesia
