I want to use chacha20 cypher to encrypt and decrypt a 64 byte message and send it over BLE anyone tried something like this?https://devzone.nordicsemi.com/f/nordic-q-a/12718/i-want-to-use-chacha20-cypher-to-encrypt-and-decrypt-a-64-byte-message-and-send-it-over-ble-anyone-tried-something-like-thisI want to use chacha20 cypher to encrypt and decrypt a 64 byte message and send it over BLE. I tried using wolfSSL, cifra both of which provides the implementations but there documentations are not clear for using them on nrf51822.en-USTelligent Community 13Wed, 23 Mar 2016 10:13:27 GMTRE: I want to use chacha20 cypher to encrypt and decrypt a 64 byte message and send it over BLE anyone tried something like this?https://devzone.nordicsemi.com/thread/48297?ContentTypeID=1Wed, 23 Mar 2016 10:13:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:52defa0d-50bf-4e6f-9cd9-c67ccf3c8bebHung Bui<p>@Jitu: I&#39;m not very familiar with chacha20 cypher, but the only encryption modules on the nRF51 are AES codebook and AES CCM. Seems that chacha20 won&#39;t use these, then you would need to do calculation manually by the chip. I don&#39;t think we have a library or documentation on how to do it.</p><div style="clear:both;"></div>