add 2.x and most of 3.x keys

[comjun04]

Adds almost every video in 2.x + most videos on 3.x which includes audio.

[wikoymi]

do you have any guidance on how you got these? I'm trying to get some 3.x videos right now

[Sudsier]

Adds almost every video in 2.x which includes audio.

I want to know how you got these keys. I desperately want to decrypt CG of 3.x now, so I need to get the key. I hope you can help me, thanks.

[comjun04]

I want to know how you got these keys. I desperately want to decrypt CG of 3.x now, so I need to get the key. I hope you can help me, thanks.

I can't tell the full details about the method right now because it's complicated to make key obtaining fully automatic, some security stuff and absence of my spare time. Apologies for this, but if you want, try to poke around audio format hex and you may find an answer.
Also, I commited most of 3.x keys on latest commit, so check it out

[12345-mcpython]

Do you know how the new keygen works? I have gotten GetVideoVersionKeyScRsp.json by my program.

[SSSLiurong]

Is there any tip on how to get keys of loopCG in starrail? Thanks.

[OAAgamer]

Is it possible to get 3.5 - 3.7 keys? Thanks.