0
我在微軟Internet Explorer證書獲取問題，而加密與私鑰和具有公共密鑰問題加密證書
1）加密工作文件
public String encryption(String inputData, String key, String certificate) // Certificate is nothing but aliase name
{
String encriptData = null;
String verify = checkForCertificateConfig();
if (!verify.equals("OK")) {
return verify;
}
System.out.println("ENCRYPTION INPUTDATA : " + inputData);
System.out.println("ENCRYPTION KEY : " + key);
System.out.println("ENCRYPTION CERTIFICATE : " + certificate);
try {
if (key.equalsIgnoreCase("Private")) {
// System.out.println("ENCRYPTION WITH PRIVATE KEY");
PrivateKey privateKey = (PrivateKey) keyStore.getKey(
certificate, null);
encriptData = encryptString(inputData, privateKey);
} else {
// System.out.println("ENCRYPTION WITH PUBLIC KEY");
encriptData = encryptString(inputData,
keyStore.getCertificate(certificate).getPublicKey());
}
} catch (NoSuchPaddingException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (IllegalBlockSizeException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (NoSuchAlgorithmException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (UnrecoverableKeyException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (InvalidKeyException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (KeyStoreException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (BadPaddingException ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
} catch (Exception ex) {
encriptData = ex.getMessage();
ex.printStackTrace();
}
return encriptData;
}
private String encryptString(String encStr, PrivateKey key)
throws NoSuchAlgorithmException, NoSuchPaddingException,
InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
String encoutStr = null;
/**
* first check key generation algorithm and initialize Cipher object
* according algorithm
*/
if (key.getAlgorithm().equalsIgnoreCase("RSA")) {
edCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
} else if (key.getAlgorithm().equalsIgnoreCase("DSA")) {
edCipher = Cipher.getInstance("DSA/ECB/PKCS1Padding");
}
/**
* Initialize Cipher Object with Private key and mode of Encryption
*/
edCipher.init(Cipher.ENCRYPT_MODE, key);
byte[] buff = encStr.getBytes();
/**
* Encrypt the String and get binary data
*/
byte[] encryptedDataStringBytes = edCipher.doFinal(buff);
/**
* Encode the binary data into String formate
*/
encoutStr = this.bASE64Encoder.encode(encryptedDataStringBytes);
return encoutStr;
}
2解密）解密獲取錯誤，如
public String decryption(String inputData, String key, String certificate) {
String decriptData = null;
String verify = checkForCertificateConfig();
if (!verify.equals("OK")) {
return verify;
}
System.out.println("DECRYPTION INPUTDATA : " + inputData);
System.out.println("DECRYPTION KEY : " + key);
System.out.println("DECRYPTION CERTIFICATE : " + certificate);
try {
if (key.equalsIgnoreCase("Private")) {
// System.out.println("DECRYPTION WITH PRIVATE KEY");
PrivateKey privateKey = (PrivateKey) keyStore.getKey(
certificate, null);
decriptData = decryptString(inputData, privateKey);
} else {
// System.out.println("DECRYPTION WITH PUBLIC KEY");
decriptData = decryptString(inputData,
keyStore.getCertificate(certificate).getPublicKey());
}
} catch (NoSuchPaddingException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (IllegalBlockSizeException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (NoSuchAlgorithmException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (UnrecoverableKeyException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (InvalidKeyException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (KeyStoreException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (BadPaddingException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (IOException ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
} catch (Exception ex) {
decriptData = ex.getMessage();
ex.printStackTrace();
}
return decriptData;
}
private String decryptString(String dncStr, PrivateKey key)
throws NoSuchAlgorithmException, NoSuchPaddingException,
InvalidKeyException, IOException, IllegalBlockSizeException,
BadPaddingException {
String decStr = null;
/**
* first check key generation algorithm and initialize Cipher object
* according algorithm
*/
if (key.getAlgorithm().equalsIgnoreCase("RSA")) {
edCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
} else if (key.getAlgorithm().equalsIgnoreCase("DSA")) {
edCipher = Cipher.getInstance("DSA/ECB/PKCS1Padding");
}
/**
* Initialize Cipher Object with Private key and mode of Decryption
*/
edCipher.init(Cipher.DECRYPT_MODE, key);
/**
* Decode the encrypted String convert into binary formate
*/
byte[] encryptedDataStringBytes = this.bASE64Decoder
.decodeBuffer(dncStr);
/**
* Decrypt the binary data and get Original encrypted String.
*/
decStr = new String(edCipher.doFinal(encryptedDataStringBytes));
return decStr;
}
錯誤，如...
javax.crypto.BadPaddingException: Blocktype mismatch: 0
at sun.security.rsa.RSAPadding.unpadV15(Unknown Source)
at sun.security.rsa.RSAPadding.unpad(Unknown Source)
at com.sun.crypto.provider.RSACipher.a(DashoA13*..)
at com.sun.crypto.provider.RSACipher.engineDoFinal(DashoA13*..)
at javax.crypto.Cipher.doFinal(DashoA13*..)
at eTokenApplet.decryptString(eTokenApplet.java:1255)
at eTokenApplet.decryption(eTokenApplet.java:1099)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.plugin.javascript.JSInvoke.invoke(Unknown Source)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.plugin.javascript.JSClassLoader.invoke(Unknown Source)
at sun.plugin2.liveconnect.JavaClass$MethodInfo.invoke(Unknown Source)
at sun.plugin2.liveconnect.JavaClass$MemberBundle.invoke(Unknown Source)
at sun.plugin2.liveconnect.JavaClass.invoke0(Unknown Source)
at sun.plugin2.liveconnect.JavaClass.invoke(Unknown Source)
at sun.plugin2.main.client.LiveConnectSupport$PerAppletInfo$DefaultInvocationDelegate.invoke(Unknown Source)
at sun.plugin2.main.client.LiveConnectSupport$PerAppletInfo$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.main.client.LiveConnectSupport$PerAppletInfo.doObjectOp(Unknown Source)
at sun.plugin2.main.client.LiveConnectSupport$PerAppletInfo$LiveConnectWorker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
退房
更多信息以'eTokenApplet.decryptString（eTokenApplet.java:1255）' –