Introduction to Intelligent PSAM Card
The internal structure of PSAM COS consists of five parts: CPU and encryption logic, RAM, ROM, EEPROM, and I/O, making it a complete computer security system. User data is stored in an EEPROM protected by encrypted logic, with a COS mask in the ROM to ensure code security. After generating the user's process key, COS places it in RAM space and automatically loses it after power failure, ensuring its security.
The application field of PSAM COS has the following characteristics:
1. Complies with the China Financial Integrated Circuit (IC) Card Specification and the China Financial Integrated Circuit (IC) Card Application Specification.
2. Data files support binary files, fixed length record files, variable length record files, and cyclic fixed length record files.
3. Support electronic wallet and electronic passbook functions that comply with bank regulations.
4. Support encryption algorithms such as DES and Triple DES, and download user specific secure encryption algorithms.
5. Support line encryption and line confidentiality functions to prevent communication data from being illegally stolen or tampered with.
6. Can be used as a security and confidentiality module, using process keys to achieve encryption and decryption.
7. Support T=0 communication protocol that complies with ISO-7816-3 standard.
8. The card supports multiple capacity options, including 2K, 4K, 8K, and 16K bytes of EEPROM space.
9. The security mechanism uses state machines and supports PIN verification, KEY authentication, data encryption, decryption, and MAC verification.
10. To meet individual needs, SmartCOS can be customized according to the needs of special industries and users.
11. Supports anti plug function.
12. Support command download and user-defined algorithm download.
13. The card supports sleep mode to reduce power consumption.
