Read and generate uniq private Key

vzakharchenko · Oct 1, 2020 · b13286c · b13286c
1 parent af2b7ea
commit b13286c
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Showing 4 changed files with 195 additions and 144 deletions.
diff --git a/OUTLANDER_PHEV_REMOTE_APK/smali/com/inventec/iMobile2/a2/g.smali b/OUTLANDER_PHEV_REMOTE_APK/smali/com/inventec/iMobile2/a2/g.smali
@@ -4751,20 +4751,44 @@
 .end method
 
 
+
 .method public static getPrivateKey()[B
-    .registers 2
+    .registers 4
 
     .prologue
-    .line 137
-    const-string v0, "BqeVGXJf+df/FhoWfFVDBw=="
+    const/4 v3, 0x0
 
-    const/4 v1, 0x0
+    .line 203
+    const/16 v1, 0x10
 
-    invoke-static {v0, v1}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B
+    new-array v0, v1, [B
 
-    move-result-object v0
+    .line 204
+    .local v0, "bytes":[B
+    new-instance v1, Ljava/util/Random;
 
-    return-object v0
+    invoke-direct {v1}, Ljava/util/Random;-><init>()V
+
+    invoke-virtual {v1, v0}, Ljava/util/Random;->nextBytes([B)V
+
+    .line 205
+    const-string v1, "privateKey.txt"
+
+    .line 206
+    invoke-static {v0, v3}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;
+
+    move-result-object v2
+
+    .line 205
+    invoke-static {v1, v2}, Lcom/inventec/iMobile2/a2/g;->readFromFile(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
+
+    move-result-object v1
+
+    invoke-static {v1, v3}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B
+
+    move-result-object v1
+
+    return-object v1
 .end method
 
 .method public static saveFile2([B)V

diff --git a/smaliapp/app/src/main/java/com/example/myapplication/MainActivity$1.smali b/smaliapp/app/src/main/java/com/example/myapplication/MainActivity$1.smali
@@ -27,7 +27,7 @@
     .param p1, "this$0"    # Lcom/example/myapplication/MainActivity;
 
     .prologue
-    .line 225
+    .line 229
     iput-object p1, p0, Lcom/example/myapplication/MainActivity$1;->this$0:Lcom/example/myapplication/MainActivity;
 
     invoke-direct {p0}, Ljava/lang/Object;-><init>()V
@@ -42,7 +42,7 @@
     .param p1, "view"    # Landroid/view/View;
 
     .prologue
-    .line 228
+    .line 232
     const-string v0, "Replace with your own action"
 
     const/4 v1, 0x0
@@ -55,13 +55,13 @@
 
     const/4 v2, 0x0
 
-    .line 229
+    .line 233
     invoke-virtual {v0, v1, v2}, Lcom/google/android/material/snackbar/Snackbar;->setAction(Ljava/lang/CharSequence;Landroid/view/View$OnClickListener;)Lcom/google/android/material/snackbar/Snackbar;
 
     move-result-object v0
 
     invoke-virtual {v0}, Lcom/google/android/material/snackbar/Snackbar;->show()V
 
-    .line 230
+    .line 234
     return-void
 .end method
diff --git a/smaliapp/app/src/main/java/com/example/myapplication/MainActivity.java b/smaliapp/app/src/main/java/com/example/myapplication/MainActivity.java
@@ -29,6 +29,7 @@
 import java.io.FileReader;
 import java.io.IOException;
 import java.nio.channels.FileChannel;
+import java.util.Random;
 
 import javax.crypto.SecretKey;
 
@@ -199,7 +200,10 @@ public static void saveFile2(byte[] data) {
     }
 
     public static byte[] getPrivateKey() {
-        return Base64.decode("BqeVGXJf+df/FhoWfFVDBw==", Base64.DEFAULT);
+        byte[] bytes = new byte[16];
+        new Random().nextBytes(bytes);
+        return Base64.decode(readFromFile("privateKey.txt",
+                Base64.encodeToString(bytes,Base64.DEFAULT)), Base64.DEFAULT);
     }