Unable to decrypt signature length 93

[ghost]

deploy@dos:$ youtube-dl -U
youtube-dl is up-to-date (2013.09.17)
deploy@dos:$ youtube-dl http://www.youtube.com/watch?v=g_aMmSWd9M8 --verbose
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['http://www.youtube.com/watch?v=g_aMmSWd9M8', '--verbose']
[debug] youtube-dl version 2013.09.17
[debug] Python version 2.7.3 - Linux-3.2.0-24-virtual-i686-with-Ubuntu-12.04-precise
[debug] Proxy map: {}
[youtube] Setting language
[youtube] g_aMmSWd9M8: Downloading video webpage
[youtube] g_aMmSWd9M8: Downloading video info webpage
[youtube] g_aMmSWd9M8: Extracting video information
[youtube] g_aMmSWd9M8: Encrypted signatures detected.
[youtube] encrypted signature length 93 (46.46), itag 43, html5 player vfl79wBKW
ERROR: Unable to decrypt signature, key length 93 not supported; retrying might work; 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. Make sure you are using the latest version; type youtube-dl -U to update.
Traceback (most recent call last):
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 321, in extract_info
ie_result = ie.extract(url)
File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 103, in extract
return self._real_extract(url)
File "/usr/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 800, in _real_extract
signature = self._decrypt_signature(encrypted_sig)
File "/usr/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 447, in _decrypt_signature
raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))

[trammel]

Same issue...

~/git/rg3-youtube-dl/youtube-dl --verbose 'http://www.youtube.com/watch?v=V_nC4IGAkH8'
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', 'http://www.youtube.com/watch?v=V_nC4IGAkH8']
[debug] youtube-dl version 2013.09.17
[debug] Python version 2.7.2 - Darwin-12.5.0-x86_64-i386-64bit
[debug] Proxy map: {}
[youtube] Setting language
[youtube] V_nC4IGAkH8: Downloading video webpage
[youtube] V_nC4IGAkH8: Downloading video info webpage
[youtube] V_nC4IGAkH8: Extracting video information
[youtube] V_nC4IGAkH8: Encrypted signatures detected.
[youtube] encrypted signature length 93 (46.46), itag 46, html5 player vfl79wBKW
ERROR: Unable to decrypt signature, key length 93 not supported; retrying might work; 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. Make sure you are using the latest version; type youtube-dl -U to update.
Traceback (most recent call last):
File "/Users/default/git/rg3-youtube-dl/youtube-dl/youtube_dl/YoutubeDL.py", line 321, in extract_info
ie_result = ie.extract(url)
File "/Users/default/git/rg3-youtube-dl/youtube-dl/youtube_dl/extractor/common.py", line 103, in extract
return self._real_extract(url)
File "/Users/default/git/rg3-youtube-dl/youtube-dl/youtube_dl/extractor/youtube.py", line 800, in _real_extract
signature = self._decrypt_signature(encrypted_sig)
File "/Users/default/git/rg3-youtube-dl/youtube-dl/youtube_dl/extractor/youtube.py", line 447, in _decrypt_signature
raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
ExtractorError: Unable to decrypt signature, key length 93 not supported; retrying might work; 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. Make sure you are using the latest version; type youtube-dl -U to update.

[deiucanta]

Same issue here. Also for length 91.

[creol]

youtube-dl http://www.youtube.com/watch?v=cmSbXsFE3l8 --verbose
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['http://www.youtube.com/watch?v=cmSbXsFE3l8', '--verbose']
[debug] youtube-dl version 2013.09.17
[debug] Python version 2.7.4 - Linux-3.8.0-30-generic-x86_64-with-Ubuntu-13.04-raring
[debug] Proxy map: {}
[youtube] Setting language
[youtube] cmSbXsFE3l8: Downloading video webpage
[youtube] cmSbXsFE3l8: Downloading video info webpage
[youtube] cmSbXsFE3l8: Extracting video information
[youtube] cmSbXsFE3l8: Encrypted signatures detected.
[youtube] encrypted signature length 93 (46.46), itag 46, html5 player vfl79wBKW
ERROR: Unable to decrypt signature, key length 93 not supported; retrying might work; 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. Make sure you are using the latest version; type youtube-dl -U to update.
Traceback (most recent call last):
File "/usr/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 321, in extract_info
ie_result = ie.extract(url)
File "/usr/bin/youtube-dl/youtube_dl/extractor/common.py", line 103, in extract
return self._real_extract(url)
File "/usr/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 800, in _real_extract
signature = self._decrypt_signature(encrypted_sig)
File "/usr/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 447, in _decrypt_signature
raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
ExtractorError: Unable to decrypt signature, key length 93 not supported; retrying might work; 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. Make sure you are using the latest version; type youtube-dl -U to update.

[mikeygao]

As usual, they will change the signature every Thursday afternoon or night!

[patrickslin]

new sig len 93 algo:

python:
s[86:29:-1] + s[88] + s[28:5:-1]

javascript:
s.slice(30, 87).reverse().join('') + s[88] + s.slice(6, 29).reverse().join('')

[jaimeMF]

Fixed by @patrickslin , thanks for the report!

[mikeygao]

Thank you very much!