ERROR: Unable to decrypt signature, subkeys lengths not valid;

[notbandali]

Hi.

I'm using youtube-dl on Arch linux and I updated it to the latest version available on the community repo at the time (youtube-dl 2013.06.29-1). It fixed the errors that were related to python modules, but this is the new error that I'm getting:

ERROR: Unable to decrypt signature, subkeys lengths not valid; please report this issue on GitHub.

[notbandali]

Never mind, just closed the terminal and opened another one now apparently it's working. I don't know what exactly happened or why exactly that error was produced. Does closing and re-opening the terminal generate any sort of "signature or subkey length"?

[jaimeMF]

Thanks for reporting, it has happened the same thing to me: the first time it fails but the seconds it can be downloaded.
For other report, it's better to post the output as text (we can easily copy the url and test).
The url that fails is http://www.youtube.com/watch?v=tg00YEETFzg

Currently we have only dicovered how to use the signature if it has an specific size, if we find videos where we can reproduce other sizes, we'll try to implement it.
If your want more info about that issues see #897.

[jojopi]

http://youtube.com/watch?v=doXH-i5qeck, and most of the videos on that channel, are consistently giving me s lengths of anything but 43.43. I am not sure what countries these are available in, though.

[devwout]

http://www.youtube.com/watch?v=WbhJYIDKj6o

[youtube] Setting language
[youtube] WbhJYIDKj6o: Downloading video webpage
[youtube] WbhJYIDKj6o: Downloading video info webpage
[youtube] WbhJYIDKj6o: Extracting video information
[youtube] WbhJYIDKj6o: Vevo video detected.
ERROR: Unable to decrypt signature, subkeys lengths not valid; please report this issue on GitHub.

Edit: tried this a second time and it works now...

[jaimeMF]

@jojopi Thanks, I can reproduce, that's slightly related, I'll have a look.

[jaimeMF]

@jojopi Thanks, these videos are fixed now.
@devwout Thanks, if you find any video that raises that error more than once, please post it here.

[shuLhan]

I believe this one fails too : http://www.youtube.com/watch?v=Ckr4r41Wuk0

Edit: version 7ce7e39.

[FiloSottile]

UxxajLWwzqY failed for me just once with

ExtractorError: Unable to decrypt signature, subkeys lengths not valid; please report this issue on GitHub.

[FiloSottile]

I'm trying hard to get a non-43 length s in the browser, but I seem not to be able to.

I'm using this bookmarklet to check, if anyone want to try

javascript:var rx = new RegExp("[,&]s=([0-9A-F]+)\.([0-9A-F]+)", "g"); while((match = rx.exec(ytplayer.config.args.url_encoded_fmt_stream_map)) !== null){ console.log(match[1].length, match[2].length); }

Might try to automate this.

[msliczniak]

This one gives error consistently for me: http://www.youtube.com/watch?v=M82OAUouEUQ

Also this: #926

[FiloSottile]

It works for me. This is going to be a pain to test.

[msliczniak]

2013.06.32 seems to fix v=M82OAUouEUQ #926 (comment)

[LAP2008]

I have have a channel where you cant download any videos from http://www.youtube.com/user/LOENENT
issue #930 with screenshots if anyone can help that would be great :)

(Problem exists with the 06.33 update)

[tkazec]

Can confirm the LOENENT issue, on .30-.33 this video gives 100% failure rate: http://www.youtube.com/watch?v=yCSfaHeIinE

[Baril27]

Getting error "Unable to decrypt signature, subkeys lengths 42.43 not supported; retrying might work;" with version (2013.06.33) and url http://www.youtube.com/watch?v=x_PrT25o8Vs

[Huarong]

Fail with many attempts.

url: http://www.youtube.com/watch?v=9gDFzmlW5J8
version: 2013.6.33

$ youtube-dl "http://www.youtube.com/watch?v=9gDFzmlW5J8"
[youtube] Setting language
[youtube] 9gDFzmlW5J8: Downloading video webpage
[youtube] 9gDFzmlW5J8: Downloading video info webpage
[youtube] 9gDFzmlW5J8: Extracting video information
[youtube] 9gDFzmlW5J8: Encrypted signatures detected.
ERROR: Unable to decrypt signature, subkeys lengths 42.43 not supported; retrying might work; please report this issue on http://yt-dl.org/bug

[phihag]

http://www.youtube.com/watch?v=9gDFzmlW5J8" (@Huarong) and http://www.youtube.com/watch?v=yCSfaHeIinE (@tkazec) work fine for me with youtube-dl v2013.06.34. You can update with

sudo youtube-dl -U

See #948 for the big picture.

[Huarong]

@phihag That works. Thank you.