Create an AWS Kinesis WebRTC signaling channel from the browser securely

Question

I'm doing WebRTC and I use AWS Kinesis Video Signaling channels. The problem is, I have to provide the AWS credentials to the KinesisVideo, SignalingClient, and KinesisVideoSignalingChannels.

And all of this is happening on the client side (browser), which means anyone can just look at my AWS credentials, how do I create these channels in a secure way?