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Unable to decrypt signature, key length 81 not supported #754

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opened 2026-02-20 23:12:10 -05:00 by deekerman · 3 comments

deekerman commented

2026-02-20 23:12:10 -05:00

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Originally created by @ghost on GitHub (Jul 10, 2013).

./youtube-dl --verbose flag "http://www.youtube.com/watch?feature=player_embedded&v=tg00YEETFzg"
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', 'flag', 'http://www.youtube.com/watch?feature=player_embedded&v=tg00YEETFzg']
[debug] youtube-dl version 2013.07.10
[debug] Python version 2.7.3 - Linux-2.6.32-5-amd64-x86_64-with-debian-7.0
[debug] Proxy map: {}
[youtube] Setting language
[youtube] flag: Downloading video webpage
ERROR: Unable to download video webpage: HTTP Error 404: Not Found; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
File "./youtube-dl.1/youtube_dl/extractor/youtube.py", line 410, in _real_extract
video_webpage_bytes = compat_urllib_request.urlopen(request).read()
File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.7/urllib2.py", line 407, in open
response = meth(req, response)
File "/usr/lib/python2.7/urllib2.py", line 520, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python2.7/urllib2.py", line 445, in error
return self._call_chain(_args)
File "/usr/lib/python2.7/urllib2.py", line 379, in _call_chain
result = func(_args)
File "/usr/lib/python2.7/urllib2.py", line 528, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 404: Not Found
Traceback (most recent call last):
File "./youtube-dl.1/youtube_dl/YoutubeDL.py", line 312, in extract_info
ie_result = ie.extract(url)
File "./youtube-dl.1/youtube_dl/extractor/common.py", line 95, in extract
return self._real_extract(url)
File "./youtube-dl.1/youtube_dl/extractor/youtube.py", line 412, in _real_extract
raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
ExtractorError: Unable to download video webpage: HTTP Error 404: Not Found; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output.

Other affected video:
http://www.youtube.com/watch?feature=player_embedded&v=taFAS_-G37Q

Originally created by @ghost on GitHub (Jul 10, 2013). ./youtube-dl --verbose flag "http://www.youtube.com/watch?feature=player_embedded&v=tg00YEETFzg" [debug] System config: [] [debug] User config: [] [debug] Command-line args: ['--verbose', 'flag', 'http://www.youtube.com/watch?feature=player_embedded&v=tg00YEETFzg'] [debug] youtube-dl version 2013.07.10 [debug] Python version 2.7.3 - Linux-2.6.32-5-amd64-x86_64-with-debian-7.0 [debug] Proxy map: {} [youtube] Setting language [youtube] flag: Downloading video webpage ERROR: Unable to download video webpage: HTTP Error 404: Not Found; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Traceback (most recent call last): File "./youtube-dl.1/youtube_dl/extractor/youtube.py", line 410, in _real_extract video_webpage_bytes = compat_urllib_request.urlopen(request).read() File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen return _opener.open(url, data, timeout) File "/usr/lib/python2.7/urllib2.py", line 407, in open response = meth(req, response) File "/usr/lib/python2.7/urllib2.py", line 520, in http_response 'http', request, response, code, msg, hdrs) File "/usr/lib/python2.7/urllib2.py", line 445, in error return self._call_chain(_args) File "/usr/lib/python2.7/urllib2.py", line 379, in _call_chain result = func(_args) File "/usr/lib/python2.7/urllib2.py", line 528, in http_error_default raise HTTPError(req.get_full_url(), code, msg, hdrs, fp) HTTPError: HTTP Error 404: Not Found Traceback (most recent call last): File "./youtube-dl.1/youtube_dl/YoutubeDL.py", line 312, in extract_info ie_result = ie.extract(url) File "./youtube-dl.1/youtube_dl/extractor/common.py", line 95, in extract return self._real_extract(url) File "./youtube-dl.1/youtube_dl/extractor/youtube.py", line 412, in _real_extract raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err)) ExtractorError: Unable to download video webpage: HTTP Error 404: Not Found; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. --- Other affected video: http://www.youtube.com/watch?feature=player_embedded&v=taFAS_-G37Q

deekerman closed this issue

2026-02-20 23:12:12 -05:00

deekerman commented

2026-02-20 23:12:13 -05:00

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@jaimeMF commented on GitHub (Jul 10, 2013):

When it says Be sure to call youtube-dl with the --verbose flag and include its complete output. it means to add the --verbose option, not --verbose flag ;).

I can download them, just run it a second time and it may work (it's the only solution right now). If it still fails, we'll try to reproduce, thanks for the report.

@jaimeMF commented on GitHub (Jul 10, 2013): When it says `Be sure to call youtube-dl with the --verbose flag and include its complete output.` it means to add the `--verbose` option, not `--verbose flag` ;). I can download them, just run it a second time and it may work (it's the only solution right now). If it still fails, we'll try to reproduce, thanks for the report.

deekerman commented

2026-02-20 23:12:13 -05:00

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Owner

@ghost commented on GitHub (Jul 10, 2013):

Yeah, YT is playing with different algos. Sometimes it comes down with algo no. 83, sometimes with 81. If I catch it again I'll rerun with the correct parameter :).

@ghost commented on GitHub (Jul 10, 2013): Yeah, YT is playing with different algos. Sometimes it comes down with algo no. 83, sometimes with 81. If I catch it again I'll rerun with the correct parameter :).

deekerman commented

2026-02-20 23:12:14 -05:00

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@jaimeMF commented on GitHub (Jul 10, 2013):

Ok, I'm closing this now, but if you discover a video that always fail, please comment here or open a new issue.

@jaimeMF commented on GitHub (Jul 10, 2013): Ok, I'm closing this now, but if you discover a video that always fail, please comment here or open a new issue.

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