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decode passwords using XOR ciphering

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- retrieve phone number from phone rather than hardcoding
This commit is contained in:
Joel Beckmeyer 2024-06-21 12:31:58 -04:00
parent 76bd47869d
commit e5b22ec65e
5 changed files with 369 additions and 2 deletions
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10
.idea/deploymentTargetSelector.xml Normal file
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@ -0,0 +1,10 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="deploymentTargetSelector">
<selectionStates>
<SelectionState runConfigName="app">
<option name="selectionMode" value="DROPDOWN" />
</SelectionState>
</selectionStates>
</component>
</project>

41
.idea/inspectionProfiles/Project_Default.xml Normal file
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@ -0,0 +1,41 @@
<component name="InspectionProjectProfileManager">
<profile version="1.0">
<option name="myName" value="Project Default" />
<inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
<option name="previewFile" value="true" />
</inspection_tool>
</profile>
</component>

263
.idea/other.xml Normal file
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@ -0,0 +1,263 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="direct_access_persist.xml">
<option name="deviceSelectionList">
<list>
<PersistentDeviceSelectionData>
<option name="api" value="27" />
<option name="brand" value="DOCOMO" />
<option name="codename" value="F01L" />
<option name="id" value="F01L" />
<option name="manufacturer" value="FUJITSU" />
<option name="name" value="F-01L" />
<option name="screenDensity" value="360" />
<option name="screenX" value="720" />
<option name="screenY" value="1280" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="28" />
<option name="brand" value="DOCOMO" />
<option name="codename" value="SH-01L" />
<option name="id" value="SH-01L" />
<option name="manufacturer" value="SHARP" />
<option name="name" value="AQUOS sense2 SH-01L" />
<option name="screenDensity" value="480" />
<option name="screenX" value="1080" />
<option name="screenY" value="2160" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="31" />
<option name="brand" value="samsung" />
<option name="codename" value="a51" />
<option name="id" value="a51" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy A51" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="34" />
<option name="brand" value="google" />
<option name="codename" value="akita" />
<option name="id" value="akita" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 8a" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="samsung" />
<option name="codename" value="b0q" />
<option name="id" value="b0q" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy S22 Ultra" />
<option name="screenDensity" value="600" />
<option name="screenX" value="1440" />
<option name="screenY" value="3088" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="32" />
<option name="brand" value="google" />
<option name="codename" value="bluejay" />
<option name="id" value="bluejay" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 6a" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="29" />
<option name="brand" value="samsung" />
<option name="codename" value="crownqlteue" />
<option name="id" value="crownqlteue" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy Note9" />
<option name="screenDensity" value="420" />
<option name="screenX" value="2220" />
<option name="screenY" value="1080" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="34" />
<option name="brand" value="samsung" />
<option name="codename" value="dm3q" />
<option name="id" value="dm3q" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy S23 Ultra" />
<option name="screenDensity" value="600" />
<option name="screenX" value="1440" />
<option name="screenY" value="3088" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="google" />
<option name="codename" value="felix" />
<option name="id" value="felix" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel Fold" />
<option name="screenDensity" value="420" />
<option name="screenX" value="2208" />
<option name="screenY" value="1840" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="google" />
<option name="codename" value="felix_camera" />
<option name="id" value="felix_camera" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel Fold (Camera-enabled)" />
<option name="screenDensity" value="420" />
<option name="screenX" value="2208" />
<option name="screenY" value="1840" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="samsung" />
<option name="codename" value="gts8uwifi" />
<option name="id" value="gts8uwifi" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy Tab S8 Ultra" />
<option name="screenDensity" value="320" />
<option name="screenX" value="1848" />
<option name="screenY" value="2960" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="34" />
<option name="brand" value="google" />
<option name="codename" value="husky" />
<option name="id" value="husky" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 8 Pro" />
<option name="screenDensity" value="390" />
<option name="screenX" value="1008" />
<option name="screenY" value="2244" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="30" />
<option name="brand" value="motorola" />
<option name="codename" value="java" />
<option name="id" value="java" />
<option name="manufacturer" value="Motorola" />
<option name="name" value="G20" />
<option name="screenDensity" value="280" />
<option name="screenX" value="720" />
<option name="screenY" value="1600" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="google" />
<option name="codename" value="lynx" />
<option name="id" value="lynx" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 7a" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="31" />
<option name="brand" value="google" />
<option name="codename" value="oriole" />
<option name="id" value="oriole" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 6" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="google" />
<option name="codename" value="panther" />
<option name="id" value="panther" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 7" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="31" />
<option name="brand" value="samsung" />
<option name="codename" value="q2q" />
<option name="id" value="q2q" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy Z Fold3" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1768" />
<option name="screenY" value="2208" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="34" />
<option name="brand" value="samsung" />
<option name="codename" value="q5q" />
<option name="id" value="q5q" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy Z Fold5" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1812" />
<option name="screenY" value="2176" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="30" />
<option name="brand" value="google" />
<option name="codename" value="r11" />
<option name="id" value="r11" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel Watch" />
<option name="screenDensity" value="320" />
<option name="screenX" value="384" />
<option name="screenY" value="384" />
<option name="type" value="WEAR_OS" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="30" />
<option name="brand" value="google" />
<option name="codename" value="redfin" />
<option name="id" value="redfin" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 5" />
<option name="screenDensity" value="440" />
<option name="screenX" value="1080" />
<option name="screenY" value="2340" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="34" />
<option name="brand" value="google" />
<option name="codename" value="shiba" />
<option name="id" value="shiba" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel 8" />
<option name="screenDensity" value="420" />
<option name="screenX" value="1080" />
<option name="screenY" value="2400" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="33" />
<option name="brand" value="google" />
<option name="codename" value="tangorpro" />
<option name="id" value="tangorpro" />
<option name="manufacturer" value="Google" />
<option name="name" value="Pixel Tablet" />
<option name="screenDensity" value="320" />
<option name="screenX" value="1600" />
<option name="screenY" value="2560" />
</PersistentDeviceSelectionData>
<PersistentDeviceSelectionData>
<option name="api" value="29" />
<option name="brand" value="samsung" />
<option name="codename" value="x1q" />
<option name="id" value="x1q" />
<option name="manufacturer" value="Samsung" />
<option name="name" value="Galaxy S20" />
<option name="screenDensity" value="480" />
<option name="screenX" value="1440" />
<option name="screenY" value="3200" />
</PersistentDeviceSelectionData>
</list>
</option>
</component>
</project>

3
app/src/main/AndroidManifest.xml
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@ -6,6 +6,9 @@
android:name="android.hardware.telephony"
android:required="false" />
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<uses-permission android:name="android.permission.READ_PHONE_NUMBERS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<application
android:allowBackup="true"

54
app/src/main/java/us/beckmeyer/vvmsmsreceiver/SmsReceiver.kt
View File

@ -2,21 +2,29 @@ package us.beckmeyer.vvmsmsreceiver
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Context.TELEPHONY_SERVICE
import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.provider.Telephony
import android.telephony.SmsMessage
import android.telephony.TelephonyManager
import android.util.Log
import kotlin.io.encoding.Base64
import kotlin.io.encoding.ExperimentalEncodingApi
class SmsReceiver : BroadcastReceiver() {
private val TAG = "SmsReceiver"
@OptIn(ExperimentalStdlibApi::class)
@OptIn(ExperimentalStdlibApi::class, ExperimentalEncodingApi::class)
override fun onReceive(context: Context, intent: Intent) {
val phoneNumber = getNumber(context)
Log.d(TAG, "got phoneNumber = $phoneNumber")
if (intent.action == Telephony.Sms.Intents.SMS_RECEIVED_ACTION ||
intent.action == Telephony.Sms.Intents.DATA_SMS_RECEIVED_ACTION) {
intent.action == Telephony.Sms.Intents.DATA_SMS_RECEIVED_ACTION
) {
val bundle: Bundle? = intent.extras
bundle?.let {
val pdus = bundle.get("pdus") as Array<ByteArray>
@ -26,6 +34,15 @@ class SmsReceiver : BroadcastReceiver() {
smsMessage?.let {
if (intent.action == Telephony.Sms.Intents.DATA_SMS_RECEIVED_ACTION) {
Log.d(TAG, "Data SMS received on port 5499")
val bodyUri = Uri.parse("advvm://" + smsMessage.messageBody)
bodyUri.getQueryParameter("p")?.let { p ->
val ciphertext = Base64.decode(p).toString(Charsets.US_ASCII)
Log.d(TAG, "ciphertext = $ciphertext")
if (phoneNumber != null) {
val password = decode(ciphertext, phoneNumber)
Log.d(TAG, "password = $password")
}
}
}
val messageBody = smsMessage.messageBody
Log.d(TAG, "Message body: $messageBody")
@ -36,4 +53,37 @@ class SmsReceiver : BroadcastReceiver() {
}
}
}
fun getNumber(context: Context): String? {
// Create obj of TelephonyManager and ask for current telephone service
val telephonyManager = context.getSystemService(TELEPHONY_SERVICE) as TelephonyManager
val phoneNumber = telephonyManager.line1Number
return phoneNumber.replace("\\D".toRegex(), "").takeLast(10)
}
private fun stripPrefix(char: Char): Int {
return char.code and 0x0F
}
private fun getStripped(text: String): ByteArray {
val stripped = text.map { stripPrefix(it).toByte() }
return stripped.toByteArray()
}
fun decode(cipher: String, phoneNumber: String): String {
val cipherStripped = getStripped(cipher)
val phoneNumberStripped = getStripped(phoneNumber)
val secret = byteArrayOf(12, 5, 3, 11, 9, 4, 5, 3, 8, 14)
val text = cipherStripped.zip(phoneNumberStripped)
.zip(secret.asIterable()) { (c, p), s -> (c.toInt() xor p.toInt() xor s.toInt()).toByte() }
.toMutableList()
if (cipherStripped.size > 10) {
text.addAll(cipherStripped.slice(10 until cipherStripped.size).toMutableList())
}
return text.toByteArray().map { (it + 0x30).toChar() }.joinToString("")
}
}