AES ECB encryptionhttps://devzone.nordicsemi.com/f/nordic-q-a/44201/aes-ecb-encryptionHello, I&#39;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&#39;s neccessary to implement AESen-USTelligent Community 13Thu, 28 Feb 2019 11:26:52 GMTRE: AES ECB encryptionhttps://devzone.nordicsemi.com/thread/173447?ContentTypeID=1Thu, 28 Feb 2019 11:26:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e6576508-b040-41f3-9d4f-60470b95e7dcEinar Thorsrud<p>Hi,</p> <p>The <a href="https://www.nordicsemi.com/DocLib/Content/SoftDevice_API_Doc/S132/v6-1-0/group_nrf_soc_functions#ga79280d697e7ba03810c6473b0c7dab87">sd_ecb_block_encrypt()</a>&nbsp;function takes the key and clear text and produces the cipher text using <a href="https://www.nordicsemi.com/DocLib/Content/Product_Spec/nRF52840/latest/ecb?305#concept_vnj_kgy_xr">ECB peripheral</a>, so this is a hardware implementation. However, this is&nbsp;AES ECB block encryption, so there are other software implementations out there.</p><div style="clear:both;"></div>