Security Terms

[δΈ­ζ–‡]

Note

When describing system security, the security terminology introduced in this section will be used directly!

Terms

Related predicates and abbreviations:

  • S - Security world, which means the security world. It is a concept related to TrustZone in ARM Cortex-M33.

  • NS - Non-Security world, indicating a non-secure world. It is a concept related to TrustZone in ARM Cortex-M33.

  • S/NS Aware - specifically refers to devices that can perform security control based on S/NS signals.

  • P - Privilege, indicates that M33 runs at privileged level.

  • NP - Non-Privilege, indicates that M33 runs at a non-privileged level.

  • M33 - ARM Cortex-M33 processor.

  • TZ - TrustZone, a security mechanism introduced in M33, isolates CPU cores into S/NS through TZ.

  • PPC - Peripheral Protection Control, BK7236 peripheral security attribute configuration and controller.

  • MPC - Memory Protection Control, BK7236 block storage security attribute configuration and controller.

  • BL1 - specifically refers to the BootROM solidified in the chip.

  • BL2 - Bootloader, specifically MCUBOOT in BK7236.

  • LCS - Life Cycle State.