Texas Instruments SimpleLink CC3220MOD Series Manual page 52

CC3220MOD, CC3220MODA
SWRS206E – MARCH 2017 – REVISED MAY 2021
• Trusted root-certificate catalog – Verifies that the CA used by the application is trusted and known secure
content delivery
• TI root-of-trust public key – Hardware-based mechanism that allows authenticating TI as the genuine origin of
a given content using asymmetric keys
• Secure content delivery – Allows encrypted file transfer to the system using asymmetric keys created by the
device
Code and Data Security:
• Network passwords and certificates are encrypted and signed.
• Cloning protection – Application and data files are encrypted by a unique key per device.
• Access control – Access to application and data files only by using a token provided in file creation time. If an
unauthorized access is detected, a tamper protection lockdown mechanism takes effect.
• Encrypted and Authenticated file system
• Secured boot – Authentication of the application image on every boot
• Code and data encryption – User application and data files are encrypted in sFlash.
• Code and data authentication – User Application and data files are authenticated with a public key certificate.
• Offloaded crypto library for asymmetric keys, including the ability to create key-pair, sign and verify data
buffer
• Recovery mechanism
Device Security:
• Separate execution environments – Application processor and network processor run on separate Arm
cores
• Initial secure programming – Allows for keeping the content confidential on the production line
• Debug security
– JTAG lock
– Debug ports lock
• True random number generator
Figure 9-1 shows the high-level structure of the CC3220S and CC3220SF devices that are contained within
the CC3220MODS and CC3220MODSF modules, respectively. The application image, user data, and network
information files (passwords, certificates) are encrypted using a device-specific key.
Peripherals
SPI and I2C
GPIO
UART
PWM
ADC
-
52 Submit Document Feedback
CC3220S and CC3220SF
Network Processor + MCU
MCU
ARM Cortex-M4
256KB RAM /
1MB Flash (CC3220SF)
OEM
Application
Serial Flash
OEM
Data Files
Application
Figure 9-1. CC3220S and CC3220SF High-Level Structure
Product Folder Links:
Network Processor
Internet Wi-Fi
HTTPS MAC
TLS/SSL Baseband
TCP/IP Radio
Network information
CC3220MOD CC3220MODA
www.ti.com
Internet
Copyright © 2017, Texas Instruments Incorporated
Copyright © 2021 Texas Instruments Incorporated
®