Channel4 help to get keys

[Isaacg96]

Been a long-time lurker on the forum and have followed early posts. This community has been great but I believe that my case needed a new post due to its uniqueness.
Returning to the hobby and have noticed that some of your tools are outdated.
Encountered difficulties related to decrypting DRM-protected content. This also a personal goal to increase my workflow and scripting skills

Specific Challenge:
Struggling to obtain the decryption key for a video from a given URL. The video URL - Channel 4 - Formula 1, S10E01
Tried using various tools but haven’t been successful with gathering X-http custom request, token and json -- this need to be added to correct python script I belive.
Obtained the MPD URL for the video: https://ak-jos-c4assets-com.akamaized.net/CH4_42_6_900_76365001001001_001/CH4_42_6_900...03526373205347
Identified the license URL: Widevine License URL: https://c4.eme.lp.aws.redbeemedia.com/wvlicenceproxy-service/widevine/acquire

Using your own CDM based on a tutorial from the forum.
The CDM details include Pixel 6, API 28, Pie (x86), and you’re using tools like Frida, Frida-Tools, Frida-Server and Dumper V2.

Issues and Questions:
Existing scripts (widevine_key-l3.py and channel4.py) may be outdated.
Unsure how to utilize the collected data to obtain the decryption key/KID.
Have noticed an update (ukfta13) but encountered path-related issues when running it.
How to proceed, especially considering your limited Python knowledge and consider myself to have intermediate, at least I can get buy with cmd, PowerShell and Linux.

Is there any hardcoded paths that I can replace them with appropriate environment variables or relative paths.
What do I change in the ukfta13-c4_dl script, what is relevant lines that adjust I can adjust accordingly. I didn't see this included in the hashed comments

I'm wondering if someone could give me some pointers - happy to provide further details.

Started looking in to this earlier than I planned as streamfab is having (CDM 2557 issues) and is 'no longer the tool for the job', until devs crack it and a mate needs it.
The stream is only up for the next 3 days, which adds further pressure.

[ElCap]

Tried looking at the recent threads?
https://forum.videohelp.com/threads/411643-Freevine-A-downloader-for-free-streaming-services

[Isaacg96]

Elcap, thank you for the prompt response. Funny you say that I was looking on that thread this morning prior to your response.

I'll read through and test later this evening. I'll update on my progress or if I still need further pointers

[PSXman_uk]

Elcap, thank you for the prompt response. Funny you say that I was looking on that thread this morning prior to your response.

I'll read through and test later this evening. I'll update on my progress or if I still need further pointers

Heres your File https://www.transfernow.net/dl/20240305pCODrSzY

[Isaacg96]

Good afternoon, thank you for your response PSXman_uk, and the upload.
Is 720p the highest available resolution, recall being able to DL 1080p previously but maybe this is now a limitation of L1 or other additional data required.

[PSXman_uk]

1080p https://www.transfernow.net/dl/20240305PcswB6ZJ

[Isaacg96]

PSXman_uk, well delivered. Are you able to shared the method.
I was after the race highlights also. ID: 76365002 in 1080p

[PSXman_uk]

As you are in the uk best method is with freevine even if your outside uk same with a proxy you will need to create your own WVD possibly

https://www.transfernow.net/dl/20240305zhuF1Dbx

[Isaacg96]

Sterling work!
Is WVD the Same as having a CDM with Dumper V2, Frida..etc

Feel free to pm with extended method details

[Isaacg96]

Issue has been resolved - thanks to PSXman_uk and all that interacted with the Freevine thread.

Was able to use freevine thread and instructions to update my tools, config my account and download videos, in the name of "testing".

Echoing the appreciation for stabbedbybrick [Github]

[abacaxi]

Hi there,
I also get difficulties getting the key for this please ? Is it possible to get this key with https://keysdb.net/ ?

https://www.channel4.com/programmes/shameless/on-demand/33881-001

AAAAZnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEYIARIQAAAAAAAAAAAAAAAAA4Y0hBoIcmJtY2g0dHYiJDAwMDAwMDAwLTAwMDAtMDAwMC0wMDAwLTAwMDAwMzg2MzQ4NDIA

https://c4.eme.lp.aws.redbeemedia.com/wvlicenceproxy-service/widevine/acquire

payload request

message	"CAQ="
request_id	2922018
token	"RnlQRFJTeFgQO7edv7jLDU0VjB78phmpzvIGWEjUM0OFQUHegFBTgNtFLXFETYAbT9vLVB5wfvX0fEckKJII30cF6aCVfyHKjxYx4QgxkIBnJNsWrmdK93Gxrhf9mrl0b_HfWE6zZ4ygJjQ8crvE7cb9146HNiyT"
video	{…}
type	"ondemand"
url	"https://cf.jos.c4assets.com/CH4_08_02_900_33881001001002_009/CH4_08_02_900_33881001001002_009_J01.ism/stream.mpd?c3.ri=13507243758683780118&mpd_segment_template=time&filter=%28type%3D%3D%22video%22%26%26%28%28DisplayHeight%3E%3D288%29%26%26%28systemBitrate%3C4800000%29%29%29%7C%7Ctype%21%3D%22video%22&ts=1709851736&e=600&st=Y3WqX_NywPuojk_om2Y6Y4vLU-PYUJlkNCluHsDcXXs"

header

Accept
	*/*
Accept-Encoding
	gzip, deflate, br
Accept-Language
	fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Connection
	keep-alive
Content-Length
	616
Content-Type
	application/json
Host
	c4.eme.lp.aws.redbeemedia.com
Origin
	https://www.channel4.com
Referer
	https://www.channel4.com/
Sec-Fetch-Dest
	empty
Sec-Fetch-Mode
	cors
Sec-Fetch-Site
	cross-site
User-Agent
	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0

[white_snake]

@abacaxi: Channel4 is supported in Freevine: https://forum.videohelp.com/threads/411643-Freevine-A-downloader-for-free-streaming-services

[abacaxi]

@abacaxi: Channel4 is supported in Freevine: https://forum.videohelp.com/threads/411643-Freevine-A-downloader-for-free-streaming-services

yes thanks, i saw it and gave it a try, but i couldn't suceed unfortunately... so i'm asking if a website like keydb could work for it in that case or is it freevine services the only tool for it ?

[[ss]vegeta]

so i'm asking if a website like keydb could work for it in that case

No, it couldn't.

[A_n_g_e_l_a]

no longer required

[ffilfernandes]

SUCCESS

KID: 00000000000000000000000003863484

License URL: https://cwip-shaka-proxy.appspot.com/no_auth

Acquired At: 08/03/2024 10:28:24

cffba0ba6cc758c4a55081921a64bef4:66d2349c0ffdc7b83 d633ecfefb51348
5990461536c558ceb87107cd71eb517f:2a28553f2c0c93423 367c3b4ee3ada42
db8e67bf26c057c9b3d0698a49b2a8a3:b3222c6814f55375c cf018fdc8242d05
1f7f1159eaf152ebac5dad0830021704:aef3ec36dffb759fb 17eeb1702c458ac
26ff7de86f2b589eb8caa58ad07bcbca:c6448abee5a55273b a0773c700b5cfa4

Hi there,
I also get difficulties getting the key for this please ? Is it possible to get this key with https://keysdb.net/ ?

https://www.channel4.com/programmes/shameless/on-demand/33881-001

AAAAZnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAEYIARIQAAAAAAAAAAAAAAAAA4Y0hBoIcmJtY2g0dHYiJDAwMDAwMDAwLTAwMDAtMDAwMC0wMDAwLTAwMDAwMzg2MzQ4NDIA

https://c4.eme.lp.aws.redbeemedia.com/wvlicenceproxy-service/widevine/acquire

payload request

message	"CAQ="
request_id	2922018
token	"RnlQRFJTeFgQO7edv7jLDU0VjB78phmpzvIGWEjUM0OFQUHegFBTgNtFLXFETYAbT9vLVB5wfvX0fEckKJII30cF6aCVfyHKjxYx4QgxkIBnJNsWrmdK93Gxrhf9mrl0b_HfWE6zZ4ygJjQ8crvE7cb9146HNiyT"
video	{…}
type	"ondemand"
url	"https://cf.jos.c4assets.com/CH4_08_02_900_33881001001002_009/CH4_08_02_900_33881001001002_009_J01.ism/stream.mpd?c3.ri=13507243758683780118&mpd_segment_template=time&filter=%28type%3D%3D%22video%22%26%26%28%28DisplayHeight%3E%3D288%29%26%26%28systemBitrate%3C4800000%29%29%29%7C%7Ctype%21%3D%22video%22&ts=1709851736&e=600&st=Y3WqX_NywPuojk_om2Y6Y4vLU-PYUJlkNCluHsDcXXs"

header

Accept
	*/*
Accept-Encoding
	gzip, deflate, br
Accept-Language
	fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Connection
	keep-alive
Content-Length
	616
Content-Type
	application/json
Host
	c4.eme.lp.aws.redbeemedia.com
Origin
	https://www.channel4.com
Referer
	https://www.channel4.com/
Sec-Fetch-Dest
	empty
Sec-Fetch-Mode
	cors
Sec-Fetch-Site
	cross-site
User-Agent
	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0

[iamghost]

SUCCESS

KID: 00000000000000000000000003863484

License URL: https://cwip-shaka-proxy.appspot.com/no_auth

Acquired At: 08/03/2024 10:28:24

cffba0ba6cc758c4a55081921a64bef4:66d2349c0ffdc7b83 d633ecfefb51348
5990461536c558ceb87107cd71eb517f:2a28553f2c0c93423 367c3b4ee3ada42
db8e67bf26c057c9b3d0698a49b2a8a3:b3222c6814f55375c cf018fdc8242d05
1f7f1159eaf152ebac5dad0830021704:aef3ec36dffb759fb 17eeb1702c458ac
26ff7de86f2b589eb8caa58ad07bcbca:c6448abee5a55273b a0773c700b5cfa4

its wrong keys and wrong license URL.
right key....

[Attachment 77517 - Click to enlarge]

[abacaxi]

thanks all for your answers...