Cannot install proprietary nvidia drivers, package fails integrity check

I tried installing the nvidia drivers. I added the nvidia repo and used the “zypper inr” command as recommended (https://en.opensuse.org/SDB:NVIDIA_drivers), and:

Retrieving package nvidia-gfxG04-kmp-desktop-352.30_k3.16.6_2-15.1.x86_64 (11/15), 3.5 MiB ( 28.6 MiB unpacked)
Retrieving: nvidia-gfxG04-kmp-desktop-352.30_k3.16.6_2-15.1.x86_64.rpm …[done]
nvidia-gfxG04-kmp-desktop-352.30_k3.16.6_2-15.1.x86_64.rpm:
Header V4 DSA/SHA1 Signature, key ID c66b6eae: NOKEY
V4 DSA/SHA1 Signature, key ID c66b6eae: NOKEY

nvidia-gfxG04-kmp-desktop-352.30_k3.16.6_2-15.1.x86_64(nVidia Graphics Drivers): Signature verification failed [4-Signatures public key is not available]
.

I also tried using the one-click install command and:

Error: INVALID:nvidia-gfxG03-kmp-desktop-340.76_k3.16.6_2-42.1.x86_64(nVidia Graphics Drivers): Signature verification failed [4-Signatures public key is not available]
Header V4 DSA/SHA1 Signature, key ID c66b6eae: NOKEY
Header SHA1 digest: OK (120e9f8495ae61f5ffd5139453ea7601ef726876)
MD5 digest: OK (791b3f6fefd099675cce6871bf24c91d)
V4 DSA/SHA1 Signature, key ID c66b6eae: NOKEY

Is nvidia’s package just messed up right now? Have I somehow not accepted a key I am supposed to? Can I force it to install regardless whether the public key is available? I am finding this rather frustrating.

it does appear the the NVIDIA repo is messed up at the moment. Might try again later

Is this repository maintained by nvidia themselves?

Yes NVIDIA maintains it