Encryption Protocols and Algorithms for E2E

Hi all,

Can someone point me to the documentation or where I should be looking in the source code to identify the encryption algorithms used for End-2-End communications and data at rest encryption on the endpoints? I can’t seem to find it on the website/Github under security or anywhere else.

I am happy that TLS will be used for data in transit as long as HTTPS has been set up. But at rest and for E2E what protocol is used for key exchange? Does it use AES256 or AES128 with ECB, CBC or CBR?