Error on Client Authenticate Step #741

adchristodoulou · 2020-11-10T16:28:50Z

https://ssbc.github.io/scuttlebutt-protocol-guide/

I'm following the above documentation and implementing SSB in PHP. I've managed to get the client and server hello working using an ssb-room set up on DigitalOcean.

But when I get to step 3 (client authenticate), I'm sending 112 bytes (which I'm verifying), however the logs on my ssb-room docker container give me the below error, and the server sends back 0 bytes. The room itself is working because I'm getting the correct response back from the hello step. Is there any way I can turn on more verbose logging to see if I can debug this?

server error, from net:82.5.113.240:56619~shs: Error: stream ended with:64 but wanted:112 at drain (/home/node/.npm-global/lib/node_modules/ssb-room/node_modules/pull-reader/index.js:43:26) at /home/node/.npm-global/lib/node_modules/ssb-room/node_modules/pull-reader/index.js:63:18 at /home/node/.npm-global/lib/node_modules/ssb-room/node_modules/pull-reader/index.js:20:7 at drain (/home/node/.npm-global/lib/node_modules/ssb-room/node_modules/stream-to-pull-stream/index.js:126:18) at Socket.<anonymous> (/home/node/.npm-global/lib/node_modules/ssb-room/node_modules/stream-to-pull-stream/index.js:147:5) at Socket.emit (events.js:203:15) at TCP._handle.close (net.js:606:12)

`if (($sock = \socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === false) {
echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "\n";
}

        if (socket_connect($sock, $ipAddress, $port) === false) {
            echo "socket_connect() failed: reason: " . socket_strerror(socket_last_error($sock)) . "\n";
        }
        
        // dd(strlen($this->networkSecretKey), $this->networkSecretKey, strlen($this->networkSecretKey2), $this->networkSecretKey2, strlen($this->networkKeyPair), $this->networkKeyPair, strlen($this->networkPublicKey), $this->networkPublicKey);
        // $signature = \Sodium\crypto_auth($this->ephemeral['public_key'], $this->networkSecretKey);
        if ($package = \Sodium\crypto_auth($this->ephemeral['public_key'], $this->networkSecretKey)) {
            echo 'OK', PHP_EOL;
        } else {
            throw new Exception('Invalid signature');
        }

        // dd(\Sodium\crypto_auth_verify($signature, $this->ephemeral['public_key'], $this->networkSecretKey));

        $send = $package.$this->ephemeral['public_key'];

        // dd(strlen($send), $send);
        $bytes = socket_write($sock, $send, strlen($send));

        echo "Wrote $bytes bytes on first send";
        
        $buf = 'This is my buffer.';
        if (false !== ($bytes = socket_recv($sock, $buf, 2048, MSG_WAITALL))) {
            echo "Read $bytes bytes from socket_recv(). Closing socket...";
        } else {
            echo "socket_recv() failed; reason: " . socket_strerror(socket_last_error($sock)) . "\n";
        }

        $server_hmac = substr($buf, 0, 32);
        $server_ephemeral_pk = substr($buf, 32, 32);

        // dd(strlen($buf), $buf);

        // dd(\Sodium\crypto_auth_verify($server_hmac, $server_ephemeral_pk, $this->networkSecretKey));
        
        $curveKey         = sodium_crypto_sign_ed25519_pk_to_curve25519($publicKey);
        $curveMyKey       = sodium_crypto_sign_ed25519_sk_to_curve25519($this->mySecretKey);
        $shared_secret_ab = sodium_crypto_scalarmult($this->ephemeral['secret_key_32'], $server_ephemeral_pk);
        $shared_secret_aB = sodium_crypto_scalarmult($this->ephemeral['secret_key_32'], $curveKey);
        $shared_secret_Ab = sodium_crypto_scalarmult($curveMyKey, $server_ephemeral_pk);

        $detatchedSignatureA = $this->generateDetatchedSignatureA($this->networkSecretKey, $publicKey, hash('sha256', $shared_secret_ab));

        $secretBox = sodium_crypto_box(
            $detatchedSignatureA.$this->myPublicKey, 
            '000000000000000000000000', 
            hash('sha256', $this->networkSecretKey.$shared_secret_ab.$shared_secret_aB)
        );

        // dd(strlen($secretBox), $secretBox);
        
        $bytes = socket_write($sock, $secretBox);

        echo "Wrote $bytes bytes on second send";
        
        $buf = 'This is my buffer.';
        if (false !== ($bytes = socket_recv($sock, $buf, 2048, MSG_WAITALL))) {
            echo "Read $bytes bytes from socket_recv(). Closing socket...";
        } else {
            echo "socket_recv() failed; reason: " . socket_strerror(socket_last_error($sock)) . "\n";
        }

        dd($buf);`

The text was updated successfully, but these errors were encountered:

clehner · 2020-11-10T17:12:33Z

Hi @useaquestion,
Nice progress on that.
That connection rejection looks like #734. That issue is fixed in ssb-server v15.3.0 - not yet in v16. Does that work?

adchristodoulou · 2020-11-10T19:35:11Z

staltz/ssb-room#21

I'm running an ssb-room through staltz's script. The one-click installer didn't work so I followed the manual instructions, and it appears to work on the front end - i.e. when you visit the IP address directly - http://143.110.168.14/

I'm not sure how to check, upgrade or downgrade my version on ssb-room. Is there documentation on this, or should I try with a different package on a fresh DigitalOcean install?

adchristodoulou · 2020-11-10T21:30:34Z

I tried to install SSB Server manually on a new Ubuntu 20.04 box, following the instructions. It worked fine until the npm install ssb-server line, at which point I got the below. I'll try on Debian 9.

root@ssb-server:~# nvm install 10
Downloading and installing node v10.23.0...
Downloading https://nodejs.org/dist/v10.23.0/node-v10.23.0-linux-x64.tar.xz...
######################################################################### 100.0%
Computing checksum with sha256sum
Checksums matched!
Now using node v10.23.0 (npm v6.14.8)
Creating default alias: default -> 10 (-> v10.23.0)
root@ssb-server:~# nvm alias default 10
default -> 10 (-> v10.23.0)
root@ssb-server:~# npm install -g ssb-server
/root/.nvm/versions/node/v10.23.0/bin/sbot -> /root/.nvm/versions/node/v10.23.0/                                                                                                                               lib/node_modules/ssb-server/bin.js
/root/.nvm/versions/node/v10.23.0/bin/ssb-server -> /root/.nvm/versions/node/v10                                                                                                                               .23.0/lib/node_modules/ssb-server/bin.js

> sodium-native@3.2.0 install /root/.nvm/versions/node/v10.23.0/lib/node_modules                                                                                                                               /ssb-server/node_modules/sodium-native
> node-gyp-build "node preinstall.js" "node postinstall.js"

sh: 1: node-gyp-build: Permission denied

> leveldown@5.6.0 install /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb                                                                                                                               -server/node_modules/leveldown
> node-gyp-build

sh: 1: node-gyp-build: Permission denied
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: sodium-native@3.2.0 (node_module                                                                                                                               s/ssb-server/node_modules/sodium-native):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: sodium-native@3.2.0 install: `no                                                                                                                               de-gyp-build "node preinstall.js" "node postinstall.js"`
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: spawn ENOENT

npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! leveldown@5.6.0 install: `node-gyp-build`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the leveldown@5.6.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional log                                                                                                                               ging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2020-11-10T19_47_24_294Z-debug.log

adchristodoulou · 2020-11-10T21:42:01Z

I'm installing ssb-server using the manual instructions on this repo's README.md on Debian 10. Couple of minor points, curl and npm aren't installed by default, so a line to install them first would probably be a good idea.

Turns out it's the same error:

root@ssb-server:~# nvm install 10
Downloading and installing node v10.23.0...
Downloading https://nodejs.org/dist/v10.23.0/node-v10.23.0-linux-x64.tar.xz...
######################################################################### 100.0%
Computing checksum with sha256sum
Checksums matched!
nvm alias default 10Now using node v10.23.0 (npm v6.14.8)
Creating default alias: default -> 10 (-> v10.23.0)
root@ssb-server:~# nvm alias default 10
default -> 10 (-> v10.23.0)
root@ssb-server:~# npm install -g ssb-server
/root/.nvm/versions/node/v10.23.0/bin/sbot -> /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/bin.js
/root/.nvm/versions/node/v10.23.0/bin/ssb-server -> /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/bin.js

> sodium-native@3.2.0 install /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/node_modules/sodium-native
> node-gyp-build "node preinstall.js" "node postinstall.js"

sh: 1: node-gyp-build: Permission denied

> leveldown@5.6.0 install /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/node_modules/leveldown
> node-gyp-build

sh: 1: node-gyp-build: Permission denied
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: sodium-native@3.2.0 (node_modules/ssb-server/node_modules/sodium-native):
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: sodium-native@3.2.0 install: `node-gyp-build "node preinstall.js" "node postinstall.js"`
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: spawn ENOENT

npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! leveldown@5.6.0 install: `node-gyp-build`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the leveldown@5.6.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2020-11-10T21_40_26_650Z-debug.log

adchristodoulou · 2020-11-10T21:44:15Z

Having investigated a bit further, this seems to be because I'm using the root user to run the npm install command. An unrelated thread led me to use the below command, which worked:

root@ssb-server:~# npm install -g ssb-server --unsafe-perm
/root/.nvm/versions/node/v10.23.0/bin/sbot -> /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/bin.js
/root/.nvm/versions/node/v10.23.0/bin/ssb-server -> /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/bin.js

> sodium-native@3.2.0 install /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/node_modules/sodium-native
> node-gyp-build "node preinstall.js" "node postinstall.js"


> leveldown@5.6.0 install /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/node_modules/leveldown
> node-gyp-build


> level@5.0.1 postinstall /root/.nvm/versions/node/v10.23.0/lib/node_modules/ssb-server/node_modules/level
> opencollective-postinstall || exit 0

Thank you for using level!
If you rely on this package, please consider supporting our open collective:
> https://opencollective.com/level/donate

+ ssb-server@15.3.0
added 791 packages from 281 contributors in 20.901s

adchristodoulou · 2020-11-10T22:02:48Z

I now have an ssb-server v15.3.0 running, and connected to that using my PHP script. I get the same error - both client hello and server hello work, then I get nothing back from my client authenticate step. I'm not quite sure how to read the logs from the ssb-server, so I can't attach that directly.

clehner · 2020-11-11T01:03:19Z

@useaquestion sounds like it may be a problem with your secret-handshake implementation. Are you able to connect from the same key using the sbot command? (or sbotc or go sbotcli)

Edit: maybe it has to do with that SHS uses crypto_secretbox_easy but we don't have that in PHP.

adchristodoulou · 2020-11-11T09:13:58Z

Yes, connecting to the same pub works, I'm just trying to see where the logs are stored so that I can debug further. I am noticing that documentation can be a bit everywhere - is there a central location where it's all being stored and compiled?

stale · 2021-06-02T17:59:59Z

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

stale bot added the stale label Jun 2, 2021

staltz removed the stale label Jun 2, 2021

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Error on Client Authenticate Step #741

Error on Client Authenticate Step #741

adchristodoulou commented Nov 10, 2020

clehner commented Nov 10, 2020

adchristodoulou commented Nov 10, 2020

adchristodoulou commented Nov 10, 2020 •

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stale bot commented Jun 2, 2021

Error on Client Authenticate Step #741

Error on Client Authenticate Step #741

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adchristodoulou commented Nov 10, 2020

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