Advanced security has become a baseline
requirement in modern automotive systems. As a result of increased connectivity, software
updates, and regulations, OEMs must standardize system-wide security requirements for MCUs.
Many of these requirements are aligned with independent standards, such as the ISO 21434 and
EVITA standards. As a result, automakers are increasingly redesigning products and platforms
to incorporate MCUs with improved security functionality, supporting features such as secure
boot, secure communication, and secure firmware updates.
The MSPM33C321A-Q1 device addresses these
needs through a combination of various hardware and software features.
- Arm® TrustZone® Technology
provides a hardware-enforced separation between secure and non-secure firmware, so that
critical code is isolated from less trusted application software.
- The Hardware Security Module (HSM)
on this device, built on TrustZone® technology, enables EVITA-light cybersecurity
performance for sensitive applications.
- Cryptographic Accelerators
supporting AES-256, SHA-256, as well as a public key accelerator (PKA) for algorithms such
as ECDSA and ECDH together enable efficient and effective implementation of
authentication, secure communication, and firmware integrity checks.
- Secure Key Provisioning from Texas
Instruments means cryptographic keys are securely exchanged and managed, allowing trusted
code to be programmed onto devices only after verification, further supporting secure
system design.
- Secure Bootand Firmware Update
allow automakers to maintain control, safety, and security of vehicle software from
production through end-of-life.