DevPwd_InvalidSalt

[p2p-sys]

It is possible to update the protocol. On firmware 2023 this error

python3 main.py 89B0A4EAAABBBCC

:55246 <<< www.easy4ipcloud.com:8800
HTTP/1.1 403 Forbidden
CSeq: 5
Content-Type:
Content-Length: 95

4DevPwd_InvalidSaltp2p,udprelay Error: Forbidden

[khoanguyen-3fc]

I've noticed that newer clients include device credentials when creating a P2P channel. However, to simplify the process and prioritize user privacy (since other users won't need to include device credentials when reporting issues), I've chosen to stick with the older protocol.

Could you provide additional details? This includes the device model, a pcap dump, and/or a link to download a Windows client compatible with your device. If possible, an official link like this one would be ideal.

I'll do my best to avoid requesting your device credentials. However, it's challenging to guarantee the code's compatibility since my device doesn't require them. If you're open to it, would you consider implementing it directly? I'd be more than happy to merge it.

[khoanguyen-3fc]

Positive update, I was able to capture the packets using the newer client!

However, addressing this seems like a bit of a rabbit hole, and unfortunately, I can only dedicate my free time to it, which might extend over the course of weeks or months.

[khoanguyen-3fc]

Quick update, I was able to reproduce the DevAuth field, it use HMAC with SHA256 hash.

But I'm also trying to figure out the encryption method for the LocalAddr field, it seems to involve some kind of KDF + AES.

@p2p-sys side question, how was you able to find the password for the cba1b29e32cb17aa46b8ff9e73c7f40b user?

[khoanguyen-3fc]

You can take a look at my latest commit (db283e9) for the Python implementation. Feel free to test it with the -t 1 argument.

However, I'm still unable to get it to pass the PTCP handshake with the device. Do you have any ideas?

[khoanguyen-3fc]

Thanks to your help, I've been able to properly handle the STUN protocol.

[github-actions]

This issue is stale because it has been open for 30 days with no activity.

[github-actions]

This issue was closed because it has been inactive for 14 days since being marked as stale.