Android Question RandomAccessFile Password

[Scantech]

Can i unlock a File that was password protected by B4A RandomAccessFile with B4J RandomAccessFile?

 

[mangojack]

Have you tried ... you might answer your own question.

 

[Scantech]

I get some kind of error. It does not point me out to which line. I'll post error later on

 

[KMatle]

Same thing l. If you forget the pw, no chance (AES-256)

 

[Erel]

Use B4XSerializator to convert the data to bytes and then use B4XEncryption to encrypt it and File.WriteBytes to write the encrypted bytes.

It will work with B4A, B4i and B4J.

 

[Scantech]

Waiting for debugger to connect...
Program started.
3
0
CollectDataDebug - Copy.txt
java.lang.NoClassDefFoundError: org/bouncycastle/crypto/Digest
at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.decrypt(RandomAccessFile.java:413)
at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.readHelper(RandomAccessFile.java:396)
at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.ReadEncryptedObject(RandomAccessFile.java:377)
at b4j.example.main._listview1_selectedindexchanged(main.java:171)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:632)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:234)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:98)
at anywheresoftware.b4a.BA$1.run(BA.java:216)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.crypto.Digest
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 25 more
java.lang.RuntimeException: java.lang.NoClassDefFoundError: org/bouncycastle/crypto/Digest
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:120)
at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:98)
at anywheresoftware.b4a.BA$1.run(BA.java:216)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: org/bouncycastle/crypto/Digest
at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.decrypt(RandomAccessFile.java:413)
at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.readHelper(RandomAccessFile.java:396)
at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.ReadEncryptedObject(RandomAccessFile.java:377)
at b4j.example.main._listview1_selectedindexchanged(main.java:171)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:632)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:234)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
... 9 more
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.crypto.Digest
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 25 more

Sub ListView1_SelectedIndexChanged(Index As Int)
    Log(Index)
    Log(ListView1.Items.Get(Index))
    
    Dim raf As RandomAccessFile
    raf.Initialize("D:\B4J Projects\Decode Debug Log\DebugLog\", ListView1.Items.Get(Index), False)
    Dim logBuild As StringBuilder
    logBuild.Initialize

    logBuild = raf.ReadEncryptedObject("somepassword", raf.CurrentPosition)
    raf.Close
    
    File.WriteString("D:\B4J Projects\Decode Debug Log\DebugLog\Decoded\", ListView1.Items.Get(Index), logBuild.ToString)
    
    
    
End Sub

Well it does not work for me. I have same password on b4a and b4j?

 

[Scantech]

Use B4XSerializator to convert the data to bytes and then use B4XEncryption

Oh i see. So the RAF Encryption will not work.