CR80 ISO7816 Magnetic stripe credit card

Description

A contact CPU card is a smart card that completes data interaction through physical contact between metal contacts and a reader-writer device. It complies with the ISO/IEC 7816 standard, has a built-in microprocessor and COS, and offers security and processing capabilities that far surpass ordinary logical encryption cards.

I. Core structure
• Hardware: CPU + RAM (cache) + ROM (firmware) + EEPROM (data storage, typically 8K–64K) + encryption coprocessor (DES/3DES/RSA/AES).
• Software: Chip-embedded Operating System (COS), responsible for security management, command parsing, file system, and cryptographic operations.
• Physical interface: Typically, it has 8 gold-plated contacts, including VCC, GND, I/O (data), RST (reset), CLK (clock), etc.

II. Key Features
• High security: hardware encryption + key hierarchy + mutual authentication + anti-plugging/anti-tampering, with strong resistance to cloning and cracking.
• Stable and reliable: Physical contact transmission is stable and offers a high speed, making it suitable for high-value transactions and sensitive data scenarios.
• Multi-application support: COS supports multiple applications on one card, with independent encryption and isolation for different applications.
• Standard compatibility: Compliant with ISO/IEC 7816, supporting industry specifications such as PBOC, EMV, and social security.

III. Typical Applications
• Financial payment: bank card, credit card (EMV/PBOC).
• Identity authentication: social security card, residence permit, electronic passport.
• Industry applications: fuel cards, cable TV cards, enterprise access control/attendance cards.

IV. Advantages
High security level, stable transmission, strong anti-interference capability, suitable for large-value transactions and highly sensitive scenarios.