ESAM (Embedded Secure Access Module) Embedded security control module is essentially a CPU card chip packaged with DIP or SOP chip, which was first used as a wallet in IC card meters to store recharge and consumption amount, as well as some other important parameters. At the same time, it has the function of identity identification and two-way identity authentication with external cards.
With the increasing attention of terminal security, it is widely used in various embedded terminals to achieve data security storage, data encryption and decryption, terminal identity identification and authentication, copyright protection of embedded software, DRM digital copyright management and other functions.