BUY DS28E15P+ https://www.utsource.net/itm/p/7578531.html
The DS28E15P+ is a DeepCover secure authenticator with 1-wire SHA-256 and 512bit user EEPROM in 6 pin TSOC package. DeepCover embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide most secure key storage possible. The DS28E15 combines secure challenge and response authentication functionality based on FIPS180-3 specified secure hash algorithm (SHA-256) with 512bits of user programmable EEPROM. Additional secure memory holds a secret/key for SHA-256 operations. Each device has its own unique 64bit ROM identification number (ROM ID) that is factory programmed into the chip. The DS28E15 generates SHA-256 message authentication code (MAC) computed from data in user memory, SHA-256 secret, host controller random challenge and 64bit ROM ID. A secure and low cost factory programming service is available to pre-program device data including SHA-256 secret. It is used in authentication of consumables, secure feature control.
The DS28E15P+ is a secure authenticator with a 1-Wire interface from Maxim Integrated. It is a secure, low-cost, and low-power solution for authentication and cryptographic key storage. Description: The DS28E15P+ is a secure authenticator with a 1-Wire interface. It provides a secure, low-cost, and low-power solution for authentication and cryptographic key storage. It features a unique 64-bit ROM registration number, a secure SHA-256 authentication protocol, and a 4Kb EEPROM for user data storage. The device also features a tamper-proof design, with on-chip detection of physical tampering attempts. Features: 64-bit ROM registration number Secure SHA-256 authentication protocol 4Kb EEPROM for user data storage Tamper-proof design On-chip detection of physical tampering attempts Low-cost and low-power solution Applications: The DS28E15P+ is ideal for authentication and cryptographic key storage applications. It is suitable for use in automotive, industrial, consumer, and medical applications. It can be used in applications such as secure access control, secure identification, secure authentication, and secure data storage. (For reference only)