B4J Question Encrypting Bytes

[cklester]

I'm running a test encryption and getting an error.

Here's the relevant function:

Sub AppStart (Args() As String)
    Log("running testBytesEncryption")
    testBytesEncryption
End Sub

Private Sub testBytesEncryption
    Dim enc As B4XCipher
    Dim b() As Byte
    Dim s As String
    s = "sjdhflaksjdf lasdf8 shf8s7fh sjdhf aslkdjfh sdifah dlfi743h89r73h4r3$R#$T#G3ng78gh89a7dfh9a87s:"
    b = s.GetBytes("UTF8")
    Log("String is " & s & " (" & b.Length & "B)")
'    Log(enc.Decrypt(enc.Encrypt(b,LockboxEncryptionKey),LockboxEncryptionKey))
End Sub

I get an error in the log:

running testBytesEncryption
main._testbytesencryption (java line: 134)
java.lang.NoClassDefFoundError: org/bouncycastle/crypto/Digest
    at b4j.example.main._testbytesencryption(main.java:134)
    at b4j.example.main._appstart(main.java:91)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:91)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:78)
    at b4j.example.main.main(main.java:28)
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.crypto.Digest
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 9 more

In the Libraries Manager, I have both Encryption and jB4XEncryption. Both are needed, so I hope there is no conflict there.

Why is it crashing? I haven't even started accessing enc yet.

What am I missing?

OK, is this B4XEncryption also needed?

 

[emexes]

Why is it crashing? I haven't even started accessing enc yet.

What if you comment out the: Dim enc As B4XCipher line?

 

[cklester]

What if you comment out the: Dim enc As B4XCipher line?

I get no crash if I do that.

 

[OliverA]

Did you include the additional jar file as instructed here https://www.b4x.com/android/forum/threads/jb4xencryption.48178/ ?

 

[cklester]

Did you include the additional jar file as instructed here https://www.b4x.com/android/forum/threads/jb4xencryption.48178/ ?

I'm able to select the jB4XEncryption module in the Libraries tab, so I think I have it.

 

[Erel]

m able to select the jB4XEncryption module in the Libraries tab, so I think I have it.

No. Reread the tutorial: https://www.b4x.com/android/forum/threads/jb4xencryption.48178/

 

[emexes]

I get no crash if I do that.

This post is from a while ago, but has a sample project zip that perhaps might still be usable.

https://www.b4x.com/android/forum/threads/jb4xencryption.48178/#post-299214

edit: lol Erel beat me to it by 42 seconds

 

[cklester]

Did you include the additional jar file as instructed here https://www.b4x.com/android/forum/threads/jb4xencryption.48178/ ?

That's what I missed! Thank you.