topic Re: MBEDTLS 4.x Port for LPC55S28 in LPC Microcontrollers

MBEDTLS 4.x Port for LPC55S28

guitardenver — Thu, 11 Jun 2026 22:47:57 GMT

I was wondering if NXP has an example using the latest MBEDTLS 4.x with the LPC55S28. The SDK downloads seem to have MBEDTLS3.x. Is there an example using/porting MBEDTLS 4.x to use the LPC55S28 hardware accelerators? Or even a 4.X example with a similar MCU?

I do not need TLS. Just basic PSA crypto portion of the new 4.X version.

- AES-CCM

- HKDF-SHA256

-SHA256

-HMAC-SHA256

Re: MBEDTLS 4.x Port for LPC55S28

Harry_Zhang — Fri, 12 Jun 2026 07:51:38 GMT

Hi @guitardenver

Currently, NXP does not provide a public example of Mbed TLS 4.x (TF‑PSA‑Crypto) running on LPC55S28 with hardware acceleration. The MCUXpresso SDK still mainly uses Mbed TLS 3.x, and the available PSA crypto examples are also based on 3.x rather than 4.x.

mbedtls3x_examples — MCUXpresso SDK Documentation

Harry