I'm trying to learn how to encrypt data in a text field using NetBeans, and created a test app. My coding does not show any errors but when I click the "Encrypt" button, I get presented with the error message: "java.lang.SecurityException: JCE cannot authenticate the provider BC".
I got the encryption coding from the this YouTube video (https://www.youtube.com/watch?v=A41LMCEXZBo&list=PLB04B4E5D9B58C13D&index=135) and the encryption works there. The encryption coding looks as follows:
private void btnEncryptActionPerformed(java.awt.event.ActionEvent evt) {
try
{
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
input = txtPlain.getText().getBytes();
SecretKeySpec key = new SecretKeySpec(keyBytes, "DES");
IvParameterSpec ivSpec = new IvParameterSpec(ivBytes);
cipher = Cipher.getInstance("DES/CTR/NoPadding", "BC");
cipher.init(Cipher.ENCRYPT_MODE, key, ivSpec);
cipherText = new byte[cipher.getOutputSize(input.length)];
ctLength = cipher.update(input, 0, input.length, cipherText, 0);
ctLength += cipher.doFinal(cipherText, ctLength);
txtEncrypt.setText(new String(cipherText));
System.out.println("cipher: " + new String(cipherText));
}
catch(Exception e)
{
JOptionPane.showMessageDialog(null, e);
}
}
Why would my encryption not work and how would I correct this error?
PS: The exact same error message comes in the NetBeans console but with errors regarding the lines:
cipher = Cipher.getInstance("DES/CTR/NoPadding", "BC");
and
System.out.println("cipher: " + new String(cipherText));
The full error that displays in the console is:
java.lang.SecurityException: JCE cannot authenticate the provider BC
at javax.crypto.Cipher.getInstance(Cipher.java:657) at javax.crypto.Cipher.getInstance(Cipher.java:657)
at javax.crypto.Cipher.getInstance(Cipher.java:596)
at PasswordFrame.btnEncryptActionPerformed(PasswordFrame.java:91)
at PasswordFrame.access$000(PasswordFrame.java:9)
at PasswordFrame$1.actionPerformed(PasswordFrame.java:50)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6525)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6290)
at java.awt.Container.processEvent(Container.java:2234)
at java.awt.Component.dispatchEventImpl(Component.java:4881)
at java.awt.Container.dispatchEventImpl(Container.java:2292)
at java.awt.Component.dispatchEvent(Component.java:4703)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
at java.awt.Container.dispatchEventImpl(Container.java:2278)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4703)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.util.jar.JarException: file:/C:/Users/Osiris/Documents/NetBeansProjects/EncryptionTest/lib/bcprov-1.45.jar has unsigned entries - org/bouncycastle/i18n/LocalizedMessage$FilteredArguments.class
at javax.crypto.JarVerifier.verifySingleJar(JarVerifier.java:464)
at javax.crypto.JarVerifier.verifyJars(JarVerifier.java:322)
at javax.crypto.JarVerifier.verify(JarVerifier.java:250)
at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:160)
at javax.crypto.JceSecurity.getVerificationResult(JceSecurity.java:186)
at javax.crypto.Cipher.getInstance(Cipher.java:653)
... 40 more
