Help with Decryption key.

[AbbaDabba]

Hi guys,

I'm trying to get the decryption keys for the following file -

https://chaupal.tv/tv-show/web-02hr-main-show-scam-video/36e8ab62-5515-435d-94a4-d4788ecf3500 (you would need to register an account to view this - Show is called Scam - S01E01, free to watch)

I've extracted my own CDM and tested working fine.

MPD file -

https://assets.chaupal.tv/af4aa498-5717-464d-b699-77718b907435/main-1_1/dash/content.mpd?hdnts=exp=1695666336~id=9ea44a13-2d73-4d49-b65b-91d9d9a2987b~hmac=1db77151a2ebe428a286f92fb16b7b8507ba349371e017340efcd5d7eaf43f18

License URL -

https://widevine-dash.ezdrm.com/widevine-php/widevine-foreignkey.php?CustomData=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhc3NldElkIjoiYjU2N2U1NDktN2Y5Yi00NDY5LWI0YzAtODBiNjk5ZDYzOTIwIiwiY29udGVudElkIjoiMzNiMzYyNjUtMTBmZC00YWJmLTg1NTAtNGRiY2I1NDU0MjBlIiwiZGV2aWNlSWQiOiIxNjRiMTU2ZS1iYTc1LTRmYWItOGFjMC0yN2M4NWVjOThlNzUiLCJwcm9maWxlSWQiOiI1YzI3NmQwMS05ZDgzLTRhYzktOWYxYy00NDE1ODMyZTZkZjMiLCJzZXNzaW9uSWQiOiI5ZWE0NGExMy0yZDczLTRkNDktYjY1Yi05MWQ5ZDlhMjk4N2IiLCJzdHJlYW1UeXBlIjoiVk9EIiwib2ZmbGluZVBsYXlpbmciOmZhbHNlLCJjb250ZW50RHVyYXRpb24iOjE1OTUsInVzZXJJZCI6IlhWTXhmUFY3N09SRXE0aDI3bUZGVHA5b2hJQjIiLCJpYXQiOjE2OTU2NjYyOTYsImV4cCI6MTY5NTY2NzE5Nn0.JwMQkvSgScZeIA0IoYXs6LSK2qHMl3DRfwiNh7pRtRQ&pX=408297

Headers I'm using -

import requests

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36',
    'Content-Type': 'application/x-www-form-urlencoded',
    'Origin': 'https://chaupal.tv',
    'Referer': 'https://chaupal.tv/',
}

params = {
    'CustomData': 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.6HsAvPnFBQ-bSkuIM9DV_l2e-iKyyrEJheKJxTNx-ow',
    'pX': '408297',
}

data = b'\x08\x04'

response = requests.post(
    'https://widevine-dash.ezdrm.com/widevine-php/widevine-foreignkey.php',
    params=params,
    headers=headers,
    data=data,
)

Using WKS-KEYS, error I'm getting -

PSSH: AAAAP3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAB8SEDOzYmUQ/Uq/hVBNvLVFQg4aBWV6ZHJtSOPclZsG
License URL: https://widevine-dash.ezdrm.com/widevine-php/widevine-foreignkey.php?CustomData=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.6HsAvPnFBQ-bSkuIM9DV_l2e-iKyyrEJheKJxTNx-ow&pX=408297
Traceback (most recent call last):
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\l3.py", line 25, in <module>
    correct, keys = WV_Function(pssh, lic_url)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\l3.py", line 21, in WV_Function
    wvdecrypt.update_license(license_b64)
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\pywidevine\L3\decrypt\wvdecryptcustom.py", line 58, in update_license
    self.cdm.provide_license(self.session, license_b64)
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\pywidevine\L3\cdm\cdm.py", line 275, in provide_license
    session.session_key = oaep_cipher.decrypt(license.SessionKey)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Windows 10\AppData\Local\Programs\Python\Python311\Lib\site-packages\Cryptodome\Cipher\PKCS1_OAEP.py", line 167, in decrypt
    raise ValueError("Ciphertext with incorrect length.")
ValueError: Ciphertext with incorrect length.

Any help is appreciated. Thank you.

[NBA456017]

Get the license url by requesting

headers = {
    'authority': 'content.chaupal.tv',
    'accept': '*/*',
    'accept-language': 'zh-CN,zh;q=0.9',
    'authorization': 'Bearer eyJhbGciOiJSUzI1NiIsImtpZCI6ImFkNWM1ZTlmNTdjOWI2NDYzYzg1ODQ1YTA4OTlhOWQ0MTI5MmM4YzMiLCJ0eXAiOiJKV1QifQ.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.rtadq5VX6PF3TgeXVMn5C8hYCNLn4VzQG74qEFhAyQYrKw5VA-3m1CyIMversZHOMd3o8H5fR6Z5wFn-PtL378bXGrWez1n8NmmNZiV7c14S7xtTKcU9B1riOXJlZ5DTV9s-Ia2IyKNHhdn4uER7XsZarbjsG6IdePuWQK4JC8GrIF7j-nxCHlMNRvS26t5H6xzd-Qw-YeCxWnikbuY2t3RlePoCpX7zQVkL68WLXVsJFR_uaANYQ-WRpw-gvFF8sI7H0NUn-c_mGAyho7lh8jmRjP-eYJsawZ6G8zrJ5yZgtkc23KR70wwGgVvBz7tIFH4XkVbxzKAvpwe-wLWKkQ',
    'content-type': 'application/json;charset=UTF-8',
    'lang': 'en',
    'origin': 'https://chaupal.tv',
    'referer': 'https://chaupal.tv/',
    'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36',
    'x-client-version': '1.2.41',
    'x-platform': 'WEB',
    'x-profile-id': '621a936e-ef50-4f53-8fae-da13f948993f',
}
params = {
    'contentId': 'd1d49f25-af86-4a77-a224-a7238ebed477',
    'streamType': 'DASH',
}

json_data = {
    'deviceId': 'be227a81-2058-47a8-982c-3c2e47f1bf67',
    'playbackId': 'ea6282b8-f6b9-4b0d-9fd0-2beedc842577',
    'device': {
        'deviceType': 'web-desktop',
    },
    'adParams': {
        'device': {
            'deviceType': 'web-desktop',
        },
    },
}

response = requests.post(
    'https://content.chaupal.tv/asset/b567e549-7f9b-4469-b4c0-80b699d63920/playback',
    params=params,
    headers=headers,
    json=json_data,
)
lic_url = response.json()[0]['licenseUrl']

KEY

--key 33b3626510fd4abf85504dbcb545420e:34838e915727f5cbc6c3ef67e08bd412

[AbbaDabba]

Thanks for your reply.

I've tried the above method of getting the license URL but I still get the same error.

Wonder what I'm doing wrong.

PSSH I'm using -

AAAAP3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAB8SEDOzYmUQ/Uq/hVBNvLVFQg4aBWV6ZHJtSOPclZsG

License URL found using the above method you kindly showed me.

[whs912km]

sorry NBA456017 but your lic url from preview tab is the same url that you type in search field "wide" then i don't understand your tip

also your headers is full different from my headers, make from lic url (bash) and curlconverter ... my data is this only, no auth, x-profile-id value:

    'Accept': '*/*',
    'Accept-Language': 'en;q=0.8',
    'Connection': 'keep-alive',
    'Origin': 'https://chaupal.tv',
    'Referer': 'https://chaupal.tv/',
    'Sec-Fetch-Dest': 'empty',
    'Sec-Fetch-Mode': 'cors',
    'Sec-Fetch-Site': 'cross-site',
    'Sec-GPC': '1',
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
    'Content-Type': 'application/x-www-form-urlencoded',

[NBA456017]

Thanks for your reply.

I've tried the above method of getting the license URL but I still get the same error.

Wonder what I'm doing wrong.

PSSH I'm using -

AAAAP3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAB8SEDOzYmUQ/Uq/hVBNvLVFQg4aBWV6ZHJtSOPclZsG

License URL found using the above method you kindly showed me.

"authorization " expired

[Obscurasa]

Would anyone be able to help with this video? I'm new to this so apologies if these aren't right.

MPD:

https://d2148dkxdf27z.cloudfront.net/media/tdIvvnYDq1gSz/7e8f7201/stream.mpd

License:

https://license.vdocipher.com/auth

PSSH:

AAAAUnBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAADIiKnZkb2NpcGhlcjo2YTFjMjIzYzYxODk0YmM3YTYwMWJjN2U3MTQwMzM2OUjj3JWbBg

[Obo]

And you may have overlooked that usually the URL of the movie/stream is needed as well, because we don't know what headers the license URL needs to be fed with. In fact, the "/auth" in the license url suggests that you need some form of authorization headers.

[marioeivissa]

Hi guys,

I'm trying to get the decryption keys for the following file -

https://chaupal.tv/tv-show/web-02hr-main-show-scam-video/36e8ab62-5515-435d-94a4-d4788ecf3500 (you would need to register an account to view this - Show is called Scam - S01E01, free to watch)

I've extracted my own CDM and tested working fine.

MPD file -

https://assets.chaupal.tv/af4aa498-5717-464d-b699-77718b907435/main-1_1/dash/content.mpd?hdnts=exp=1695666336~id=9ea44a13-2d73-4d49-b65b-91d9d9a2987b~hmac=1db77151a2ebe428a286f92fb16b7b8507ba349371e017340efcd5d7eaf43f18

License URL -

https://widevine-dash.ezdrm.com/widevine-php/widevine-foreignkey.php?CustomData=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.JwMQkvSgScZeIA0IoYXs6LSK2qHMl3DRfwiNh7pRtRQ&pX=408297

Headers I'm using -

import requests

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36',
    'Content-Type': 'application/x-www-form-urlencoded',
    'Origin': 'https://chaupal.tv',
    'Referer': 'https://chaupal.tv/',
}

params = {
    'CustomData': 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.6HsAvPnFBQ-bSkuIM9DV_l2e-iKyyrEJheKJxTNx-ow',
    'pX': '408297',
}

data = b'\x08\x04'

response = requests.post(
    'https://widevine-dash.ezdrm.com/widevine-php/widevine-foreignkey.php',
    params=params,
    headers=headers,
    data=data,
)

Using WKS-KEYS, error I'm getting -

PSSH: AAAAP3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAB8SEDOzYmUQ/Uq/hVBNvLVFQg4aBWV6ZHJtSOPclZsG
License URL: https://widevine-dash.ezdrm.com/widevine-php/widevine-foreignkey.php?CustomData=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.6HsAvPnFBQ-bSkuIM9DV_l2e-iKyyrEJheKJxTNx-ow&pX=408297
Traceback (most recent call last):
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\l3.py", line 25, in <module>
    correct, keys = WV_Function(pssh, lic_url)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\l3.py", line 21, in WV_Function
    wvdecrypt.update_license(license_b64)
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\pywidevine\L3\decrypt\wvdecryptcustom.py", line 58, in update_license
    self.cdm.provide_license(self.session, license_b64)
  File "C:\Users\Windows 10\Downloads\WKS-KEYS\WKS-KEYS\pywidevine\L3\cdm\cdm.py", line 275, in provide_license
    session.session_key = oaep_cipher.decrypt(license.SessionKey)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Windows 10\AppData\Local\Programs\Python\Python311\Lib\site-packages\Cryptodome\Cipher\PKCS1_OAEP.py", line 167, in decrypt
    raise ValueError("Ciphertext with incorrect length.")
ValueError: Ciphertext with incorrect length.

Any help is appreciated. Thank you.

how did you get the pssh?

[Karoolus]

how did you get the pssh?

https://forum.videohelp.com/threads/405001-How-to-get-the-widevine-pssh-from-init-mp4-...pt#post2650501