bug: Unable to write protected blocks after authentication (PWD_AUTH)

[lordonnance]

Plugin version:

"@capawesome-team/capacitor-nfc": "^5.0.2",

Platform(s):

Android

Current behavior:

1. Use transceive method to send PWD_AUTH command
2. Receive the correct PACK
3. Then directly send another command to write a protected block, assuming now the tag is in AUTHENTICATED state
4. Receive an error Msg: Error: An unknown error has occurred.

Expected behavior:

1. Use transceive method to send PWD_AUTH command
2. Receive the correct PACK
3. Then directly send another command to write a protected block, assuming now the tag is in AUTHENTICATED state
4. Write command succeed

Steps to reproduce:

1. Set PWD, PACK
2. Set AUTH0 to 43 (decimal), PWD byte page
3. Authenticate with PWD_AUTH command
4. Try setting PWD byte value

Related code:

// AUTH0 is set to PWD byte page 43 (decimal)
// PWD is already set to [16, 16, 16, 16]

      Nfc.addListener('nfcTagScanned', async (event) => {

          // PWD AUTH
          const PWDAUTH_BYTES = [27, 16, 16, 16, 16];
          const responsePwdAuth = await Nfc.transceive({ techType: NfcTagTechType.NfcA, data: PWDAUTH_BYTES });
          console.log ("responsePwdAuth", responsePwdAuth.response)
          if ((responsePwdAuth.response != null) && (responsePwdAuth.response.length >= 2)) {
            // TODO: verify PACK to confirm that tag is authentic
            console.info ("Try set PWD authenticated")

            const NEWPWD_WRITE_BYTES = [162, 43, 17, 17, 17, 17];
            const writePwdResponseAfterAuthentication = await Nfc.transceive({ techType: NfcTagTechType.NfcA, data: NEWPWD_WRITE_BYTES });
            console.log ("writePwdResponseAfterAuthentication", writePwdResponseAfterAuthentication.response)

           }
          await Nfc.stopScanSession();
})

Other information:

Android 10 - Pixel 1

Capacitor doctor:

insert the output from `npx cap doctor` here

[robingenz]

Thank you for your request. Please post the complete logcat output while the error occurs.

[robingenz]

Also, what tag are you using?

[lordonnance]

Also, what tag are you using?

I'm using Ntag213

Logcat is very short

2023-07-10 13:11:23.368 30097-30097 Capacitor/Console com.sdl.one.dgsport.wallaby I File: https://localhost/7553.7e39d28a863f8aa9.js - Line 1 - Msg: TRy set PWD authenticated 2023-07-10 13:11:23.392 30097-30097 Capacitor/Console com.sdl.one.dgsport.wallaby E File: https://localhost/7553.7e39d28a863f8aa9.js - Line 1 - Msg: Error: An unknown error has occurred.

[lordonnance]

Thank you for your request. Please post the complete logcat output while the error occurs.

Here is a more complete logcat (you can notice Auth0 set to 43 (2Bh PWD page for Ntag213)

2023-07-10 13:29:22.891 9726-9726 Capacitor com.sdl.one.dgsport.wallaby V callback: 23975089, pluginId: Nfc, methodName: transceive, methodData: {"techType":"NFC_A","data":[48,41]} 2023-07-10 13:29:22.896 9726-9872 Capacitor/NetworkPlugin com.sdl.one.dgsport.wallaby V Notifying listeners for event networkStatusChange 2023-07-10 13:29:22.903 9726-9726 Capacitor/Console com.sdl.one.dgsport.wallaby W File: https://localhost/main.4dd7fa308afae5cc.js - Line 1 - Msg: !! Network status changed !! [object Object] 2023-07-10 13:29:22.932 9726-9726 Capacitor/Console com.sdl.one.dgsport.wallaby I File: https://localhost/7553.4f973890e639c1b0.js - Line 1 - Msg: auth0ReadResponse.response 4,0,0,43,0,5,0,0,0,0,0,0,0,0,0,0 2023-07-10 13:29:22.934 9726-9726 Capacitor/Plugin com.sdl.one.dgsport.wallaby V To native (Capacitor plugin): callbackId: 23975090, pluginId: Nfc, methodName: transceive 2023-07-10 13:29:22.934 9726-9726 Capacitor com.sdl.one.dgsport.wallaby V callback: 23975090, pluginId: Nfc, methodName: transceive, methodData: {"techType":"NFC_A","data":[27,49,55,49,55]} 2023-07-10 13:29:22.955 9726-9726 Capacitor/Console com.sdl.one.dgsport.wallaby I File: https://localhost/7553.4f973890e639c1b0.js - Line 1 - Msg: responsePwdAuth 54,54 2023-07-10 13:29:22.956 9726-9726 Capacitor/Console com.sdl.one.dgsport.wallaby I File: https://localhost/7553.4f973890e639c1b0.js - Line 1 - Msg: TRy set PWD authenticated 2023-07-10 13:29:22.957 9726-9726 Capacitor/Plugin com.sdl.one.dgsport.wallaby V To native (Capacitor plugin): callbackId: 23975091, pluginId: Nfc, methodName: transceive 2023-07-10 13:29:22.958 9726-9726 Capacitor com.sdl.one.dgsport.wallaby V callback: 23975091, pluginId: Nfc, methodName: transceive, methodData: {"techType":"NFC_A","data":[162,43,49,54,49,54]} 2023-07-10 13:29:22.974 9726-9845 NfcPlugin com.sdl.one.dgsport.wallaby E An unknown error has occurred. 2023-07-10 13:29:22.975 9726-9845 Capacitor com.sdl.one.dgsport.wallaby D Sending plugin error: {"save":false,"callbackId":"23975091","pluginId":"Nfc","methodName":"transceive","success":false,"error":{"message":"An unknown error has occurred."}} 2023-07-10 13:29:22.979 9726-9726 Capacitor/Console com.sdl.one.dgsport.wallaby E File: https://localhost/7553.4f973890e639c1b0.js - Line 1 - Msg: Error: An unknown error has occurred. 2023-07-10 13:29:22.981 9726-9726 Capacitor/Plugin com.sdl.one.dgsport.wallaby V To native (Capacitor plugin): callbackId: 23975092, pluginId: Nfc, methodName: stopScanSession

Thank you for the quick replies

[robingenz]

Alright, thank you. Please provide a Minimal, Reproducible Example using this template in a public GitHub repository so I can debug the issue.

[github-actions[bot]]

It looks like there hasn't been a reply in 30 days, so I'm closing this issue.