AES ECB encryption

[firma]

Hello,

I'm developing Win32 application, where I have to communicate with BLE device from our customer.
At the beginning is simple application level authentication (with NONCE).
Because of different language (Delphi) it's neccessary to implement AES ECB encryption, used in customer's device.
I have information from developer of firmware, that there's used sd_ecb_block_encrypt() function from Nordic SDK, to encrypt data, sent do device.

I tried several AES ECB implementations and libraries, but none of them is working and my encrypted authentication string is rejected by device.
Is it possible to get used AES ECB implementation, used in sd_ecb_block_encrypt() function please? Or is anywhere description of used algorithm?

Thank you!

[Einar Thorsrud]

Hi,

The sd_ecb_block_encrypt() function takes the key and clear text and produces the cipher text using ECB peripheral, so this is a hardware implementation. However, this is AES ECB block encryption, so there are other software implementations out there.