Data security can generally be divided into two categories, Data Encryption and Security Erase.
Currently, the most common approach to data encryption is AES encryption technology.
AES is a Block Encryption Standard adopted by the US Federal Government, mainly used to encrypt sensitive data. It is carried out via hardware. AES usually has two encryption lengths, 128-bit and 256-bit. Both require a key (i.e. password) to conduct encryption and decryption. The Host writes the data, encrypts data via the AES Encryption Engine built into the SSD controller, and finally writes the encrypted data into flash memory.