New encryption from firmware 1.21

[nygma2004]

First of all, thanks for this node.
I am using this to control 2 different split units without any issues. But there is a bigger unit which looks more like a commercial unit mounted in the middle of the false ceiling.
When I enter the IP of it's wifi module, it is not able to connect.

I see the following in the debug log.

>>> cid:9424b827fd75: 6/29/2024, 10:55:10 AM
IN.MSG.UNPACK {
  t: 'dev',
  cid: '9424b827fd75',
  bc: 'gree',
  brand: 'gree',
  catalog: 'gree',
  mac: '9424b827fd75',
  mid: '3018',
  hid: '362001067592+U-W06DV4.01.bin',
  model: 'gree',
  name: 'b827fd75',
  series: 'gree',
  vender: '1',
  ver: 'V1.0.0.0',
  lock: 0
}
>>> cid:9424b827fd75: 6/29/2024, 10:55:10 AM
SOCKET.SEND {
  cid: 'app',
  i: 1,
  t: 'pack',
  uid: 0,
  pack: 'xB7ko3kjcYC/suIHqbMy4ERSziOesHf20PnJ7sfj64Oj9mrs/0p7GUTdWxmNaBUt'
}
>>> cid:9424b827fd75: 6/29/2024, 10:55:13 AM
SOCKET Unable to connect. Retrying...
>>> cid:9424b827fd75: 6/29/2024, 10:55:13 AM
SOCKET.SEND { t: 'scan' }

Any recommendation how to get this working?

[inwaar]

Related inwaar/gree-hvac-client#22

[nygma2004]

I tested this again using the new 0.2.1 version of the node. And I keep getting the following 3 messages:
Error: Can not decrypt message (Unsupported state or unable to authenticate data)
Error: Connecting to HVAC timed out

[nygma2004]

Fresh set of dump:

26 Dec 16:45:03 - [error] [gree-hvac:Nappali Legkondi] Error: Can not decrypt message (Unsupported state or unable to authenticate data)
>>> cid:9424b827fd75: 12/26/2024, 4:45:06 PM
SOCKET Reconnecting...
>>> cid:9424b827fd75: 12/26/2024, 4:45:06 PM
SOCKET.SEND { t: 'scan' }
ClientConnectTimeoutError: Connecting to HVAC timed out
    at Client._initialize (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:226:32)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at runNextTicks (node:internal/process/task_queues:64:3)
    at listOnTimeout (node:internal/timers:540:9)
    at process.processTimers (node:internal/timers:514:7) {
  origin: undefined,
  props: undefined
}
26 Dec 16:45:06 - [error] [gree-hvac:Nappali Legkondi] Error: Connecting to HVAC timed out
>>> cid:9424b827fd75: 12/26/2024, 4:45:06 PM
IN.MSG {
  t: 'pack',
  i: 1,
  uid: 0,
  cid: '9424b827fd75',
  tcid: '',
  pack: 'LP24Ek0OaYogxs3iQLjL4CDljya1z9cd4ZotL1aC1IVYT1PXPBDouOPiWHaG4G8lz22fUZtUbkblUYF5BzlKDV9xeQzMlsaP4RKBtrnsDrNSOKkdVnSW1jshbC9Ur0/1gFQsh4lDMRnjzzz9+se+4m/SXMlEF8XZgXr/lVyg/Ya5jMPWkS1W6by8LqVKljSX/VLofOeYjta54xNeZ+9zkcPkIobUcqXOyg5KvWxT2+U/S+oNhNj9iL3Mu+Rd2kvcjrzfQ3ZNNDRVwPVeCtKnokYdEoCAW+VQbH/TRVBwAtSqG5OfzQ1b3pyP2GpHzTTV'
}
ClientMessageUnpackError: Can not decrypt message (Unsupported state or unable to authenticate data)
    at Client._unpack (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:530:19)
    at Client._handleResponse (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:471:27)
    at Socket.<anonymous> (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:203:22)
    at Socket.emit (node:events:519:28)
    at UDP.onMessage [as onmessage] (node:dgram:943:8) {
  origin: Error: Unsupported state or unable to authenticate data
      at Decipheriv.final (node:internal/crypto/cipher:193:29)
      at GcmCipher.decrypt (/home/admin/.node-red/node_modules/gree-hvac-client/src/encryption-service.js:207:42)
      at EncryptionService.decrypt (/home/admin/.node-red/node_modules/gree-hvac-client/src/encryption-service.js:57:44)
      at Client._unpack (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:526:50)
      at Client._handleResponse (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:471:27)
      at Socket.<anonymous> (/home/admin/.node-red/node_modules/gree-hvac-client/src/client.js:203:22)
      at Socket.emit (node:events:519:28)
      at UDP.onMessage [as onmessage] (node:dgram:943:8),
  props: {
    message: {
      t: 'pack',
      i: 1,
      uid: 0,
      cid: '9424b827fd75',
      tcid: '',
      pack: 'LP24Ek0OaYogxs3iQLjL4CDljya1z9cd4ZotL1aC1IVYT1PXPBDouOPiWHaG4G8lz22fUZtUbkblUYF5BzlKDV9xeQzMlsaP4RKBtrnsDrNSOKkdVnSW1jshbC9Ur0/1gFQsh4lDMRnjzzz9+se+4m/SXMlEF8XZgXr/lVyg/Ya5jMPWkS1W6by8LqVKljSX/VLofOeYjta54xNeZ+9zkcPkIobUcqXOyg5KvWxT2+U/S+oNhNj9iL3Mu+Rd2kvcjrzfQ3ZNNDRVwPVeCtKnokYdEoCAW+VQbH/TRVBwAtSqG5OfzQ1b3pyP2GpHzTTV'
    }
  }
}

[inwaar]

@nygma2004 this seems like a network connectivity problem, try v0.3.0, it has more detailed logs which you can enable by selection "Debug" log level in the Gree Node config in NodeRED.

[nygma2004]

I hope I managed to get the full debug log now. This is with version 0.3.0:

[2024-12-28T18:16:13.054Z +8ms] info CLIENT:2.2.0/00ef85b0> Status request
[2024-12-28T18:16:13.060Z +6ms] info CLIENT:2.2.0/c5a17743> Status request
[2024-12-28T18:16:13.081Z +21ms] info CLIENT:2.2.0/c5a17743> Status response
[2024-12-28T18:16:13.113Z +32ms] info CLIENT:2.2.0/00ef85b0> Status response
[2024-12-28T18:16:13.118Z +6ms] debug CLIENT:2.2.0/6910a815> Handle response
{
  request: {
    t: 'pack',
    i: 1,
    uid: 0,
    cid: '9424b827fd75',
    tcid: '',
    pack: 'LP24Ek0OaYogxs3iQLjL4CDljya1z9cd4ZotL1aC1IVYT1PXPBDouOPiWHaG4G8lz22fUZtUbkblUYF5BzlKDV9xeQzMlsaP4RKBtrnsDrNSOKkdVnSW1jshbC9Ur0/1gFQsh4lDMRnjzzz9+se+4m/SXMlEF8XZgXr/lVyg/Ya5jMPWkS1W6by8LqVKljSX/VLofOeYjta54xNeZ+9zkcPkIobUcqXOyg5KvWxT2+U/S+oNhNj9iL3Mu+Rd2kvcjrzfQ3ZNNDRVwPVeCtKnokYdEoCAW+VQbH/TRVBwAtSqG5OfzQ1b3pyP2GpHzTTV'
  }
}
[2024-12-28T18:16:13.125Z +6ms] debug ENCRYPTOR:2.2.0/6910a815> Decrypt
{
  input: {
    t: 'pack',
    i: 1,
    uid: 0,
    cid: '9424b827fd75',
    tcid: '',
    pack: 'LP24Ek0OaYogxs3iQLjL4CDljya1z9cd4ZotL1aC1IVYT1PXPBDouOPiWHaG4G8lz22fUZtUbkblUYF5BzlKDV9xeQzMlsaP4RKBtrnsDrNSOKkdVnSW1jshbC9Ur0/1gFQsh4lDMRnjzzz9+se+4m/SXMlEF8XZgXr/lVyg/Ya5jMPWkS1W6by8LqVKljSX/VLofOeYjta54xNeZ+9zkcPkIobUcqXOyg5KvWxT2+U/S+oNhNj9iL3Mu+Rd2kvcjrzfQ3ZNNDRVwPVeCtKnokYdEoCAW+VQbH/TRVBwAtSqG5OfzQ1b3pyP2GpHzTTV'
  },
  output: {
    payload: {
      t: 'dev',
      cid: '9424b827fd75',
      bc: 'gree',
      brand: 'gree',
      catalog: 'gree',
      mac: '9424b827fd75',
      mid: '3018',
      hid: '362001067592+U-W06DV4.01.bin',
      model: 'gree',
      name: 'b827fd75',
      series: 'gree',
      vender: '1',
      ver: 'V1.0.0.0',
      lock: 0
    },
    cipher: 'ecb',
    key: 'a3K8Bx%2r8Y7#xDh'
  }
}
[2024-12-28T18:16:13.132Z +7ms] info CLIENT:2.2.0/6910a815> Scan success
[2024-12-28T18:16:13.137Z +5ms] info CLIENT:2.2.0/6910a815> Binding start
{ attempt: 1 }
[2024-12-28T18:16:13.144Z +7ms] debug ENCRYPTOR:2.2.0/6910a815> Encrypt
{
  input: { mac: '9424b827fd75', t: 'bind', uid: 0 },
  output: {
    payload: 'xB7ko3kjcYC/suIHqbMy4ERSziOesHf20PnJ7sfj64Oj9mrs/0p7GUTdWxmNaBUt',
    cipher: 'ecb',
    key: 'a3K8Bx%2r8Y7#xDh'
  }
}
[2024-12-28T18:16:13.148Z +5ms] debug CLIENT:2.2.0/6910a815> Socket send
{
  request: {
    cid: 'app',
    i: 1,
    t: 'pack',
    uid: 0,
    pack: 'xB7ko3kjcYC/suIHqbMy4ERSziOesHf20PnJ7sfj64Oj9mrs/0p7GUTdWxmNaBUt',
    tag: undefined
  }
}
[2024-12-28T18:16:13.654Z +505ms] warn CLIENT:2.2.0/6910a815> Binding attempt timed out
{ timeout: 500 }
[2024-12-28T18:16:13.657Z +3ms] info CLIENT:2.2.0/6910a815> Binding start
{ attempt: 2 }
[2024-12-28T18:16:13.662Z +5ms] debug ENCRYPTOR:2.2.0/6910a815> Encrypt
{
  input: { mac: '9424b827fd75', t: 'bind', uid: 0 },
  output: {
    payload: 'JtoT1XUt89Lqss6DOHFHAMklv9YAzgWyIl52X7OFwurdNHgGiUNkepU=',
    tag: 'xAC+cQVWfdfi2rjQIkGbQA==',
    cipher: 'gcm',
    key: '{yxAHAY_Lm6pbC/<'
  }
}
[2024-12-28T18:16:13.666Z +4ms] debug CLIENT:2.2.0/6910a815> Socket send
{
  request: {
    cid: 'app',
    i: 1,
    t: 'pack',
    uid: 0,
    pack: 'JtoT1XUt89Lqss6DOHFHAMklv9YAzgWyIl52X7OFwurdNHgGiUNkepU=',
    tag: 'xAC+cQVWfdfi2rjQIkGbQA=='
  }
}

[inwaar]

what happened after the last log record (2024-12-28T18:16:13.666Z)?
there should be more logs before and after, would be helpful to see the full logs

[inwaar]

@nygma2004 Btw, can you ping that AC from the NodeRED host to see any packet loss or latency?

[nygma2004]

packet access does not appear to be a problem:

admin@DUSUN:~$ ping 192.168.0.193
PING 192.168.0.193 (192.168.0.193) 56(84) bytes of data.
64 bytes from 192.168.0.193: icmp_seq=1 ttl=64 time=9.55 ms
64 bytes from 192.168.0.193: icmp_seq=2 ttl=64 time=7.57 ms
64 bytes from 192.168.0.193: icmp_seq=3 ttl=64 time=16.8 ms
64 bytes from 192.168.0.193: icmp_seq=4 ttl=64 time=15.5 ms
64 bytes from 192.168.0.193: icmp_seq=5 ttl=64 time=5.82 ms
64 bytes from 192.168.0.193: icmp_seq=6 ttl=64 time=15.6 ms
^C
--- 192.168.0.193 ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5006ms
rtt min/avg/max/mdev = 5.816/11.800/16.775/4.312 ms

[inwaar]

Is there any other software/tool (open source) that correctly works with this AC unit? (Especially one that could provide some logs)

Does the vendor app works without problem with the unit?

[nygma2004]

We only have the vendor app, nothing else. I am not aware of any other tool that works with it.