Is there a interface to support diffie-hellman algorithm?

[dllhlx]

As the stream is not safe in grpc insecure channel, is there a interface that I can use diffie-hellman algorithm in transfer progress?

[BusyJay]

Why not just use secure channel?

[dllhlx]

@BusyJay In my application model, I can't use the secure channel. I can only use insecure channel but the stream is not safe, so if not there is an interface to support diffie-hellman in grpc-rs I can use to encrypt the data.

[siddontang]

@dllhlx, does core C gRPC support this? If yes, you can help us to add this feature.

[dllhlx]

@BusyJay @siddontang can I add DH algorithm in file src/codec.rs and the pb_codec section like

pub mod pb_codec {
    use protobuf::{self, Message, MessageStatic};

    use error::Result;

    #[inline]
    pub fn ser<T: Message>(t: &T, buf: &mut Vec<u8>) {
        //add DH logic here <-------------
        t.write_to_vec(buf).unwrap()
    }

    #[inline]
    pub fn de<T: MessageStatic>(buf: &[u8]) -> Result<T> {
        //add DH logic here <-------------
        protobuf::parse_from_bytes(buf).map_err(From::from)
    }
}

[siddontang]

We design to support different codec protocols, maybe it can work.

/cc @BusyJay

[dllhlx]

@siddontang I try this solution, ant it works!

[siddontang]

Cool