我正在尝试学习如何使用NetBeans加密文本字段中的数据，并创建了一个测试应用程序。我的编码没有显示任何错误，但是当我单击“加密”按钮时，我收到错误消息：“java.lang.SecurityException：JCE无法验证提供者BC”。
我从此YouTube视频（https://www.youtube.com/watch?v=A41LMCEXZBo&list=PLB04B4E5D9B58C13D&index=135）获得了加密编码，并且加密工作在那里工作。加密编码如下：
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);
}
}
为什么我的加密不起作用以及如何更正此错误？
PS：NetBeans控制台中出现完全相同的错误消息，但有关行的错误：
cipher = Cipher.getInstance("DES/CTR/NoPadding", "BC");
和
System.out.println("cipher: " + new String(cipherText));
控制台中显示的完整错误是：
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