feat: privy web3 wallet integration

README.md

@@ -4,6 +4,50 @@ ProofMode is light, minimal "reboot" of our full encrypted, verified secure came
 
 While we are very proud of the work we did with the CameraV and InformaCam projects, the end results was a complex application and proprietary data format that required a great deal of investment by any user or community that wished to adopt it. Furthermore, it was an app that you had to decide and remember to use, in a moment of crisis. With ProofMode, we both wanted to simplify the adoption of the tool, and make it nearly invisible to the end-user, while making it the adoption of the tool by organizations painless through simple formats like CSV and known formats like PGP signatures.
 
+# ✨ NEW: Web3 Wallet Integration
+
+This version of ProofMode includes Web3 wallet authentication through Privy SDK integration, enabling users to securely authenticate and manage cryptographic wallets alongside their proof data.
+
+## Features
+
+- **SMS/Email OTP Authentication**: Secure phone number and email verification using Privy's authentication system
+- **Embedded Wallet Creation**: Automatic Ethereum wallet generation for authenticated users
+- **Cross-Platform Ready**: Implementation designed to match iOS patterns for future consistency
+- **Secure Key Management**: Wallet addresses and authentication state managed through encrypted storage
+
+## Setup
+
+To enable Web3 wallet functionality:
+
+1. **Configure Privy Credentials**: 
+   - Open `app/src/main/java/org/witness/proofmode/crypto/privy/PrivyConfig.kt`
+   - Add your Privy `APP_ID` and `APP_CLIENT_ID` from your Privy dashboard
+
+2. **Dependencies**: 
+   - The required Privy SDK dependency is already included in `app/build.gradle`
+   - No additional setup required
+
+## Usage
+
+Users can access Web3 wallet features through the new "Web3 Wallet" option in the app, allowing them to:
+- Authenticate using phone number or email with OTP verification
+- Generate and manage embedded Ethereum wallets
+- View wallet addresses and connection status
+- Securely logout and disconnect wallets
+
+## Implementation Details
+
+- **PrivyManager.kt**: Core wallet management and authentication logic
+- **PrivyConfig.kt**: Configuration for Privy SDK credentials  
+- **Web3WalletAuthActivity.kt**: User interface for authentication flow
+- Full error handling and logging for debugging authentication issues
+
+For detailed documentation:
+- **[Web3 Wallet Setup Guide](docs/web3-wallet-setup.md)**: Step-by-step configuration and troubleshooting
+- **[Technical Documentation](docs/web3-wallet-integration.md)**: Architecture details and implementation notes
+
+This integration enhances ProofMode's cryptographic capabilities while maintaining the app's core principle of invisible, automatic operation.
+
 # Design Goals 
 
 * Run all of the time in the background without noticeable battery, storage or network impact

android-libproofcam/build.gradle.kts

@@ -3,6 +3,7 @@ plugins {
     kotlin("android")
     kotlin("kapt")
     id("androidx.navigation.safeargs")
+    id("org.jetbrains.kotlin.plugin.compose")
 }
 
 android {

android-libproofmode/src/main/java/org/witness/proofmode/ProofMode.java

@@ -55,6 +55,8 @@ public class ProofMode {
 
     public final static String PREF_CREDENTIALS_PRIMARY = "prefCredsPrimary";
 
+    public final static String PREF_OPTION_WEB3_WALLET = "web3Wallet";
+
 
     public final static boolean PREF_OPTION_NOTARY_DEFAULT = true;
     public final static boolean PREF_OPTION_LOCATION_DEFAULT = true;
@@ -65,6 +67,8 @@ public class ProofMode {
 
     public final static boolean PREF_OPTION_AI_DEFAULT = true;
 
+    public final static boolean PREF_OPTION_WEB3_WALLET_DEFAULT = false;
+
     public final static String PROOF_FILE_TAG = ".proof.csv";
     public final static String PROOF_FILE_JSON_TAG = ".proof.json";
     public final static String OPENPGP_FILE_TAG = ".asc";

app/build.gradle

@@ -2,8 +2,9 @@ plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
     id 'kotlin-kapt'
-    id 'com.google.devtools.ksp' version '1.9.0-1.0.13'
+    id 'com.google.devtools.ksp' version '2.1.0-1.0.29'
     id 'org.jetbrains.kotlin.plugin.serialization'
+    id 'org.jetbrains.kotlin.plugin.compose'
 }
 
 
@@ -33,7 +34,7 @@ android {
 
     defaultConfig {
         applicationId "org.witness.proofmode"
-        minSdkVersion 28
+        minSdkVersion 24
         targetSdkVersion 34
         versionCode 260303
         versionName "2.6.0-RC-3"
@@ -199,7 +200,6 @@ dependencies {
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
 
 
-    implementation("com.google.zxing:core:3.4.1")
 
 
 

app/src/main/AndroidManifest.xml

@@ -117,6 +117,11 @@
             android:label="Filebase Settings"
             android:screenOrientation="portrait"
             android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".Web3WalletAuthActivity"
+            android:label="Web3 Wallet"
+            android:screenOrientation="portrait"
+            android:theme="@style/AppTheme.NoActionBar" />
 
         <receiver
             android:name=".org.witness.proofmode.util.OnBootReceiver"

app/src/main/java/org/witness/proofmode/SettingsActivity.kt

@@ -10,13 +10,15 @@ import android.view.MenuItem
 import android.widget.CheckBox
 import android.widget.CompoundButton
 import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.Observer
 import androidx.preference.PreferenceManager
 import com.google.android.gms.common.AccountPicker
 import com.google.android.gms.common.AccountPicker.AccountChooserOptions
 import org.witness.proofmode.PermissionActivity.Companion.hasPermissions
 import org.witness.proofmode.ProofMode.PREF_CREDENTIALS_PRIMARY
 import org.witness.proofmode.c2pa.C2paUtils
 import org.witness.proofmode.crypto.pgp.PgpUtils
+import org.witness.proofmode.crypto.privy.PrivyManager
 import org.witness.proofmode.databinding.ActivitySettingsBinding
 import org.witness.proofmode.storage.FilebaseConfig
 import org.witness.proofmode.util.GPSTracker
@@ -34,6 +36,9 @@ class SettingsActivity : AppCompatActivity() {
     private lateinit var switchAI: CheckBox
     private lateinit var switchAutoImport: CheckBox
     private lateinit var switchAutoSync: CheckBox
+    private lateinit var switchWeb3Wallet: CheckBox
+
+    private lateinit var privyManager: PrivyManager
 
     private lateinit var binding:ActivitySettingsBinding
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -48,6 +53,8 @@ class SettingsActivity : AppCompatActivity() {
         val title = binding.toolbarTitle
         title.text = getTitle()
         mPrefs = PreferenceManager.getDefaultSharedPreferences(this)
+        privyManager = PrivyManager.getInstance(this)
+
         switchLocation = binding.contentSettings.switchLocation
         switchNetwork = binding.contentSettings.switchNetwork
         switchDevice = binding.contentSettings.switchDevice
@@ -56,6 +63,7 @@ class SettingsActivity : AppCompatActivity() {
         switchAI = binding.contentSettings.switchAI
         switchAutoImport = binding.contentSettings.switchAutoImport
         switchAutoSync = binding.contentSettings.switchAutoSync
+        switchWeb3Wallet = binding.contentSettings.switchWeb3Wallet
 
 
 
@@ -176,6 +184,31 @@ class SettingsActivity : AppCompatActivity() {
 
         }
 
+        // Setup Web3 wallet settings
+        switchWeb3Wallet.setOnCheckedChangeListener { _: CompoundButton?, isChecked: Boolean ->
+            mPrefs.edit().putBoolean(ProofMode.PREF_OPTION_WEB3_WALLET, isChecked).commit()
+
+            if (isChecked) {
+                // Open Web3 wallet authentication activity
+                val intent = Intent(this, Web3WalletAuthActivity::class.java)
+                startActivity(intent)
+            } else {
+                // Disconnect wallet
+                privyManager.disconnectWallet()
+            }
+
+            updateUI()
+        }
+
+        // Observe Privy manager state changes
+        privyManager.isConnected.observe(this, Observer { isConnected ->
+            // Update the switch state based on connection status
+            if (switchWeb3Wallet.isChecked != isConnected) {
+                switchWeb3Wallet.isChecked = isConnected
+                mPrefs.edit().putBoolean(ProofMode.PREF_OPTION_WEB3_WALLET, isConnected).apply()
+            }
+        })
+
     }
 
     private val REQ_ACCOUNT_CHOOSER = 9999;
@@ -219,6 +252,9 @@ class SettingsActivity : AppCompatActivity() {
         switchAutoImport.isChecked =
             mPrefs.getBoolean(ProofMode.PREFS_DOPROOF, false)
 
+        switchWeb3Wallet.isChecked =
+            mPrefs.getBoolean(ProofMode.PREF_OPTION_WEB3_WALLET, ProofMode.PREF_OPTION_WEB3_WALLET_DEFAULT)
+
     }
 
     override fun onResume() {