topic macro definition for encrypt API in LPC Microcontrollers

macro definition for encrypt API

ShinjiOhishi — Thu, 03 Jun 2021 11:41:26 GMT

About encrypt a data using the following API on LPC55S69.

psa_cipher_generate_iv
psa_cipher_update
psa_cipher_finish

The following macro definition is defined in the API specification. https://developer.arm.com/documentation/ihi0086/latest/

PSA_CIPHER_IV_LENGTH
PSA_CIPHER_UPDATE_OUTPUT_SIZE
PSA_CIPHER_UPDATE_OUTPUT_MAX_SIZE
PSA_CIPHER_FINISH_OUTPUT_SIZE
PSA_CIPHER_FINISH_OUTPUT_MAX_SIZE

I have mbedtls enabled and tried to build the SDK, but crypto_sizes.h doesn't have these macro definitions.
Why is no define?

Re: macro definition for encrypt API

FelipeGarcia — Fri, 04 Jun 2021 18:59:59 GMT

Hi Shinji,

According to the same document you are referring those macros were added in 1.0 beta 3 version. You can see this in the C.1.2 Changes between 1.0 beta 3 and 1.0.0 section of the document.

Our latest SDK is using Platform Security Architecture APIs Version 1.0 so these new macros are still not reflected in our drivers.

Best regards,

Felipe

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Re: macro definition for encrypt API

ShinjiOhishi — Mon, 07 Jun 2021 01:36:36 GMT

Hi, Felipe Garcia.
Thank you for answering.