Hello @RKOAS ,
depending on the asymmetric cryptographic algorithm you can generate a key per via openssl you will find in this lab this method done with STM32wb55 it should be the same for the H5 as well .
you can also generate a key pair with python script i will provide you with the script in the attached files this script also generates a random message in c format which you can incorporate into you project to test the sign and verification with RSA algorithm .
BR
In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
