Auvio DRM, how to 2022 ?

[TheRedBee]

Hello,

I'm sure it has been asked multiple times, but I can't get any solution to work.

I'm trying to download DRM videos on RTBF Auvio (example: https://auvio.rtbf.be/emission/kid-paddle-21077)

I'd want help on how to, since there is a lot that I want to download.

Can we still get DRM keys nowadays ?

Thank you

[TheRedBee]

To be more specific, there is 40+ videos (and more coming) so it'd be easier if I can download myself

[CrymanChen]

Can we still get DRM keys nowadays ?

Yes you can.
According to my discovery, the website you mentioned uses standard Widevine
All you need is to put ①PSSH ②License into getwvkeys, and the key will come out.

I'm sure it has been asked multiple times, but I can't get any solution to work.

Just by reading and hanging around in this forum, you'll find what you need.

[CrymanChen]

Details and steps sent by PM.

[TheRedBee]

Details and steps sent by PM.

Wow !
I managed to get my account verified on getwvkeys and it works, I managed to download and decrypt needed video+audio and merge !

Thank you SO much for your time !

[CrymanChen]

Details and steps sent by PM.

Wow !
I managed to get my account verified on getwvkeys and it works, I managed to download and decrypt needed video+audio and merge !

Thank you SO much for your time !

No worries, please enjoy it.

[Gene]

Details and steps sent by PM.

Hello

I have also looked a lot for a solution to this because for a long time I have never managed to download from Auvio again.

Could you also explain to me how to do it please ?

A huge thank you in advance !!!

[TheRedBee]

Details and steps sent by PM.

Wow !
I managed to get my account verified on getwvkeys and it works, I managed to download and decrypt needed video+audio and merge !

Thank you SO much for your time !

No worries, please enjoy it.

Hello,
I haven't decrypted content using this method yet, I am still using getwvkeys website,
but I can't find how to how the client_id and private key files, I suppose I should query the license server with these infos somehow ?
I'd prefer not to rely on getwvkeys just in case.
Thank you!

[CrymanChen]

Learn from the forum, TheRedBee.
You'll get everything it needs to get the keys.

[TheRedBee]

I just wanted to thank you all for the help.
I gave up but bite the bullet back recently and now I am able to backup and decrypt content independently.
For the record I am using WKS-Key from CDM-tools (web archive direct link to the tool because it seems offline: https://web.archive.org/web/20230111100753/https://cdm-project.com/CDM-Tools/WKS-Keys/...chive/main.zip).

Thanks again !

[YoBruce45]

Details and steps sent by PM.

Hello CryManChen,
newbie also here, would you mind sending those steps via PM as well?
Would be a great help , parallel to start scrawling through the forum…

Thx a lot =)

[Karoolus]

Details and steps sent by PM.

Hello CryManChen,
newbie also here, would you mind sending those steps via PM as well?
Would be a great help , parallel to start scrawling through the forum…

Thx a lot =)

https://files.videohelp.com/u/303646/Auvio.zip

Finding the PSSH and License URL is widely covered on this forum, you should be able to get that really quick

PSSH can be easily found using EME Logger in Tampermonkey
License URL is

https://rbm-rtbf.live.ott.irdeto.com/licenseServer/widevine/v1/rbm-rtbf/license

but it needs the added padding as well. Just look for the url that starts with this

[YoBruce45]

Thank you Karoolus.
After searching around i have read that in the following thread:
https://forum.videohelp.com/threads/408635-DL-Auvio-replay-videos-from-belgian-TV-RTBF#post2700970

you wrote that the .zip file

contains [...] a working CDM.

How to understand this exactly, does the script contains hard coded device_client_id_blob + device_private_key (means ready to send a licence request), or do I still have to bring my own CDM keys?

Thanks

[Obo]

It has a valid working CDM inside, seemingly extracted from a Xiaomi Redmi 5 Plus. You don't need your own CDM.

[Karoolus]

Ah crap, I thought it was an Android Studio CDM. Oh well, plenty of L3's to go around I guess

[Obo]

Using the pywidevine version with the protobuf update from @A_n_g_e_l_a, here a script to examine the client-id blob:

import sys
from google.protobuf import text_format
from pywidevine.L3.cdm.formats import wv_proto4_pb2 as wv_proto4

client_id = wv_proto4.ClientIdentification()

file = 'pywidevine/L3/cdm/devices/android_generic/device_client_id_blob'
if len(sys.argv) > 1:
    file = sys.argv[1]

with open(file, 'rb') as f:
    try:
        client_id.ParseFromString(f.read())
        print(text_format.MessageToString(client_id))
    except:
        print('client id failed to parse as protobuf')

[whs912km]

@Obo

i have error when run your script

ImportError: cannot import name 'wv_proto4_pb2' from 'pywidevine.L3.cdm.formats' (D:\WKS-KEYS\pywidevine\L3\cdm\formats\__init__.py)

[Obo]

That's why I mentioned the protobuf update...

Change the lines containing wv_proto4 and replace every occurance of proto4 with proto2. That's line 3 (2 occurances) and line 5.

[whs912km]

thanks for your explanation. all right

but still: we can check, trough this script, if cdm is valid or revoked? or you can check validity only with a test to some site?

[Obo]

You can only check if your CDM is locally valid. It's just a script to parse the client blob file and output its content.