jameshollyer
Member since Oct 2019 • Last active Nov 2019Most recent activity
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- 16 comments
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Thanks for looking into this Gordon! How are you testing that this is working? I am using the NRFConnect app as a source of truth. I uploaded your code to my puck and tried to get the secure characteristic from that app and once I entered the passkey it just disconnects(same as before). I am also trying on an objective-c core bluetooth application I wrote to test connecting to the app and I get an "unknown error" after I type in the passkey(also, same as before). I am wondering what you are using to show that is does work as intended? I will try again with the new firmware.
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I don't think it was ever working. When I said it was working it is because the passkey prompt popped up. I was never able to connect to it. I thought I was reproducing a reported Web Bluetooth bug in Chrome. However, when I dug further I found the issue was in the call to Core Bluetooth. I have now made a standalone Objective C OSX application that uses core bluetooth to connect and I am still getting the error. I then tried it on the NRF Connect app and it did not work there. I also tried through Chrome's web bluetooth on Windows and it did not work there either. This is leading me to believe the issue might be in the Puck.
I did restart my Mac and try again and I am still not able to connect to the protected characteristic.
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I would like to open this back up. I am not sure this is working properly. It is now prompting me for the passkey on mac os and android(using the nrf connect app). In Mac when I enter the key it gives me an "unkown error" and on the NRF connect app it acctually disconnects me from the puck when I enter the passkey.
My current code is :
NRF.setSecurity({passkey:"123456", mitm:1, display:1}); NRF.setServices({ 0xabcd : { 0xAB40 : { value : "Hello", maxLen : 50, notify: true, readable: true, writable: true, }, 0xAB41 : { value : "Hello", maxLen : 50, notify: true, readable: true, writable: true, security: { read: { encrypted: true, passkey:"123456", mitm: true, lesc: true, signed: false }, write: { encrypted: true, passkey:"123456", mitm: true, lesc: true, signed: false } } } } }, {advertise: [ 0xabcd ]}); var on = false; setWatch(function(e) { on = !on; LED1.write(on); var pressTime = e.time - e.lastTime; NRF.updateServices({ 0xabcd : { 0xAB40 : { value : "time: " + e.time, notify: true }, 0xAB41 : { value : "lastTime: " + e.lastTime, maxLen : 50, notify: true }, } }); }, BTN, { repeat:true, edge:"falling", debounce: 50 });
everything works fine on characteristic 0xAB40 but I cannot get the secure 0xAB41 characteristic to work. Please advice.
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Now http://www.espruino.com/binaries/travis/master/ does not even have a file for puck js.
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The espruino_2v04_puckjs.zip file is not working for me. I even went and installed 2v03 to make sure it was not updating and that I was doing it properly. 2v03 worked just fine. That master branch version of 2v04 does not. The NRF Connect app says "Starting DFU" then immediately says "disconnecting..."
I also wanted to say that I am using web-bluetooth to connect to the characteristic. Here is my code for that:
connectClick(event) { console.log('clicked', event); navigator.bluetooth.requestDevice({ filters: [{ services: [0xabcd], }] }) .then(device => { console.log("requested", device); return device.gatt.connect(); }) .then(server => { console.log('got server', server); return server.getPrimaryService(0xabcd); }) .then(service => { console.log('got service', service); service.getCharacteristic(0xAB40).then(characteristic => { this.startListeningForTime(characteristic); }); service.getCharacteristic(0xAB41).then(characteristic => { this.startListeningForTime(characteristic); }).catch(error => { console.log('error', error); }) }) } handleCharacteristicValueChanged(event) { var enc = new TextDecoder("utf-8"); var value = event.target.value; console.log('Received ' + enc.decode(value)) // TODO: Parse Heart Rate Measurement value. // See https://github.com/WebBluetoothCG/demos/blob/gh-pages/heart-rate-sensor/heartRateSensor.js } startListeningForTime(characteristic) { characteristic.startNotifications() .then(char => { console.log('notification started', char) // Writing 1 is the signal to reset energy expended. char.addEventListener('characteristicvaluechanged', this.handleCharacteristicValueChanged.bind(this)); }) }
Just wanted to make sure that I should not be able to access that without entering a passkey if it is working.
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I am trying to get some sort of proof that there is any security things happening at all. Most notably is that there is no prompt for a pin at any point.
Here is all the code I am uploading to my puck.js although I don't think anything but the first line(obviously copy pasted from the docs) is relevant.
NRF.setSecurity({passkey:"123456", mitm:1, display:1}); NRF.setServices({ 0xabcd : { 0xAB40 : { value : "Hello", maxLen : 50, notify: true }, 0xAB41 : { value : "Hello", maxLen : 50, notify: true, security: { read: { encrypted: true, mitm: true, lesc: true, signed: false } } } } }, {advertise: [ 0xabcd ]}); var on = false; setWatch(function(e) { on = !on; LED1.write(on); var pressTime = e.time - e.lastTime; NRF.updateServices({ 0xBC10 : { 0xAB40 : { value : "time: " + e.time, notify: true }, 0xAB41 : { value : "lastTime: " + e.lastTime, maxLen : 50, notify: true }, } }); }, BTN, { repeat:true, edge:"falling", debounce: 50 });
Puck js is updated to 2v04.
Enjoys building cool things. I also should note that I work on Web Bluetooth in Chrome.