https certificate installation issues on Amcrest DVR

[jfriend00]

I'd like to install an SSL certificate from Let's Encrypt on my Amcrest 1080P HD-CVI DVR. The advantage of using a Let's Encrypt certificate is that it uses a certificate authority that is already trusted by modern browsers so https will "just work" without having to download something into each browser.

Right now I've got at least two obstacles to using such a certificate.

1. How to prove to Let's Encrypt that I control the ddns domain that I'm requesting the certificate for? Their usual method for doing that is described here and none of those sound like something we can do with an Amcrest DVR.

2. How to get the certificate onto the DVR and in the right place where the DVR would use it for the https connection?

So, is there any way to use an https certificate other than the one that the Amcrest DVR can generate for you?

[plusfour]

I'd like to install an SSL certificate from Let's Encrypt on my Amcrest 1080P HD-CVI DVR. The advantage of using a Let's Encrypt certificate is that it uses a certificate authority that is already trusted by modern browsers so https will "just work" without having to download something into each browser.

The protocol that Let's Encrypt uses was designed for use with public web servers and not much else. It's unlikely you'll get it working with any kind of IoT device like the NVR, unless the NVR is both running a large amount of special software that implements LE's ACME protocol and it has a publicly visible, accessible interface with an associated DNS name.

As I said, it's designed for public web servers, not things like the NVR. For browsers, there's no solution to this problem, in fact it's going to get worse over time as they make it harder and harder to use SSL without involving a public/commercial CA.