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feat: decrypt data from HWW

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This commit is contained in:
Vlad Stan 2022-08-12 14:12:40 +03:00
parent 174cc28fe1
commit e6c8865eca
1 changed files with 58 additions and 89 deletions
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147
lnbits/extensions/watchonly/static/components/serial-signer/serial-signer.js
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@ -15,7 +15,7 @@ async function serialSigner(path) {
receivedData: '',
config: {},
decryptionKey: null,
dheKey: null, // todo: store in secure local storage
sharedSecret: null, // todo: store in secure local storage
hww: {
password: null,
@ -202,55 +202,8 @@ async function serialSigner(path) {
}
},
handleSerialPortResponse: async function (value) {
const command = value.split(' ')[0]
const commandData = value.substring(command.length).trim()
if (command === COMMAND_DH_EXCHANGE) {
this.handleDhExchangeResponse(commandData)
return
}
switch (command) {
case COMMAND_DH_EXCHANGE:
this.handleDhExchangeResponse(commandData)
return
case COMMAND_LOG:
console.log(` %c${commandData}`, 'background: #222; color: #bada55')
return
}
if (this.dheKey) {
try {
console.log('### value', value)
const messageBin = nobleSecp256k1.utils.hexToBytes(value)
try {
const xx = await decryptMessage(this.dheKey, messageBin)
console.log('### xx: ', xx)
} catch (error) {
console.log('### error 1', error)
}
try {
const decrypted1 = await decryptMessage2(
this.sharedSecret,
messageBin
)
console.log(
'### decrypted hex 1: ',
nobleSecp256k1.utils.bytesToHex(decrypted1)
)
console.log('### decrypted text 1', new TextDecoder().decode(decrypted1))
var decryptedText = aesjs.utils.utf8.fromBytes(decrypted1);
console.log('### decrypted text utf8 1',decryptedText);
} catch (error) {
console.log('### error 2', error)
}
} catch (error) {
console.log(error)
}
}
console.log('### extract value', value)
const {command, commandData} = await this.extractCommand(value)
switch (command) {
case COMMAND_SIGN_PSBT:
@ -274,8 +227,17 @@ async function serialSigner(path) {
case COMMAND_SEED:
this.handleShowSeedResponse(commandData)
break
case COMMAND_DH_EXCHANGE:
this.handleDhExchangeResponse(commandData)
break
case COMMAND_LOG:
console.log(
` %c${commandData}`,
'background: #222; color: #bada55'
)
break
default:
console.log('### hww console', value)
console.log(` %c${value}`, 'background: #222; color: red')
}
},
updateSerialPortConsole: function (value) {
@ -724,48 +686,55 @@ async function serialSigner(path) {
const message = [command].concat(attrs).join(' ')
const encodedMessage = asciiToUint8Array(message.length + ' ' + message)
// const encodedMessageHex =
// '6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710'
// const encodedMessage = nobleSecp256k1.utils.hexToBytes(
// encodedMessageHex
// )
const encrypted = await encryptMessage(this.dheKey, encodedMessage)
const encryptedHex = nobleSecp256k1.utils.bytesToHex(encrypted)
console.log('### encrypted hex: ', encryptedHex)
/*
const decrypted = await decryptMessage(this.dheKey, encrypted)
console.log(
'### decrypted hex 0: ',
nobleSecp256k1.utils.bytesToHex(new Uint8Array(decrypted))
)
const encrypted1 =
'8f13a7763f021d7701f4100631f6c3d80576fcd0e3718b2594ceb7b910ceed29a334d1019dd6f0ffdba5b6be8c11637d6124d7adbd29c88af13800cb1f980f7d'
const encrypted1Bin = nobleSecp256k1.utils.hexToBytes(encrypted1)
const decrypted1 = await decryptMessage2(
this.sharedSecret,
encrypted1Bin
)
console.log(
'### decrypted hex 1: ',
nobleSecp256k1.utils.bytesToHex(decrypted1)
)
const encrypted2 =
'1e785d2d8cdf930aae61e8f3dbc5637917c1a621f4cdc6857cabbcdf696108d6b831cddce4c9f759e8b8eee2419f4a8f2133bb8893ae8bd251597439a6f4f7b172bd2c9eead0877cbf4cb996ad343330'
const encrypted2Bin = nobleSecp256k1.utils.hexToBytes(encrypted2)
const decrypted2 = await decryptMessage(this.dheKey, encrypted2Bin)
console.log(
'### decrypted hex 2: ',
nobleSecp256k1.utils.bytesToHex(new Uint8Array(decrypted2))
)
*/
await this.writer.write(encryptedHex + '\n')
},
extractCommand: async function (value) {
const command = value.split(' ')[0]
const commandData = value.substring(command.length).trim()
if (command === COMMAND_DH_EXCHANGE || command === COMMAND_LOG)
return {command, commandData}
const decryptedValue = await this.decryptData(value)
const decryptedCommand = decryptedValue.split(' ')[0]
const decryptedCommandData = decryptedValue.substring(decryptedCommand.length).trim()
return {
command: decryptedCommand,
commandData: decryptedCommandData
}
},
decryptData: async function (value) {
if (!this.sharedSecret) {
this.$q.notify({
type: 'warning',
message: 'Secure session not established!',
timeout: 10000
})
return '/error Secure session not established!'
}
try {
const messageBytes = nobleSecp256k1.utils.hexToBytes(value)
const decrypted1 = await decryptMessage2(
this.sharedSecret,
messageBytes
)
const data = new TextDecoder().decode(decrypted1)
const [len] = data.split(' ')
const command = data.substring(len.length +1, +len + len.length + 1).trim()
console.log('### decryptData ', data, command)
return command
} catch (error) {
this.$q.notify({
type: 'warning',
message: 'Failed to decrypt message from device!',
caption: `${error}`,
timeout: 10000
})
return '/error Failed to decrypt message from device!'
}
}
},
created: async function () {