About MSaez.1

MSaez.1 · 2022-07-04

Hello,I am trying yo implement the HW encryption acceleration on a STM32F423CH for AED CCM Mode. I tried to implement on the first place the CTR encryption mode but it seems to me that the example provided in the NIST Special Publication 800-38A cann...

MSaez.1 · 2022-06-30

I have download the TM32CubeExpansion_Crypto_V4.0.1 library. The folder structure doesn't look like the one represented in the UM1924 document. There is no AccHw_Crypto folder and no STMF1 to STMF4 folders nowhere.Is there support for AES HW accelera...

MSaez.1 · 2022-06-30

Hello everyoneI am trying to use the crypto library to perform an AES CCM encryption decryption. I am using an STM32F423CH MCU. The frames I am receiving are comming from other system and the authentication is always failing.I implemted the validatio...

MSaez.1 · 2022-07-04

Thank you very much for your response. I finally found the source confusion. In the documentation is commented that the IVR register needs to be initialized with the B0 vector comented in the NIST example, but this is not completely true.In the examp...

MSaez.1 · 2022-07-04

First problem solved! I did not activate the CRC module before using the firmware version of the Cryptographic Library. Thanks to the video "Security Part3 - STM32 Security features - 30 - Crypto library lab"!

MSaez.1 · 2022-07-04

Hello Dominik,this is actually pretty helpful. I am struggling since quite some days with the AED HW acceleration and I agree that is very hard to use o bad documented. The STM32 FW implementation of the Cryptographic Library is regretfully not much ...

MSaez.1 · 2022-07-04

Hello,any update regarding this issue? I am having quite a lot of problems implementing CTR Encryption/Decryption. Is the documentation or the drivers wrong? I have seen other posts claiming similar problems?Thank you and best regards

MSaez.1 · 2022-07-03

Something is completly wrong somewhere. I have been doing steps in different location and going to the basics but it is still not working.I activated the AES HW aceleration module to do the encryption/decryption there. I did not get CCM working but g...

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AES CCM encryption with HW AES module

Cryptographic hardware acceleration libraries for STM32F423

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Re: STM32H753ZI CRYP module, AES-CTR, counter register, documentation vs observations

Re: STM32 cryptografic AES CCM libraries giving wrong results