import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.io.*;
import com.Ostermiller.util.Base64;
import com.Ostermiller.util.MD5;
import java.net.URLEncoder;
public class EnDecryptor {
public static void addProvider()
{
if (Security.getProvider("IBMJCE") == null) {
// IBMJCE is not installed, install it.
try
{
Security.addProvider
((Provider)Class.forName("com.ibm.crypto.provider.IBMJCE").newInstance());
}
catch (Exception ex) {
AuthLogger.logFatal("EnDecryptor:addProvider():Cannot install provider: " + ex.getMessage());
}
}
}
public static String encrypt(String word)
{
addProvider();
String encWord="";
byte[] encryptedWordbytes=null;
try
{
if (null == word)
{
throw new NullPointerException("EnDecryptor:encrypt(): No string to be encrypted provided!");
}
AuthLogger.logDebug("EnDecryptor:encrypt():Generating an encryption key...");
encryptedWordbytes = MD5.getHash(word);
AuthLogger.logDebug("EnDecryptor:encrypt():MD5 HASH length:"+encryptedWordbytes.length);
AuthLogger.logDebug("EnDecryptor:encrypt():MD5 HASH :"+new String(encryptedWordbytes));
// Create a Rijndael key
SecretKeySpec KeySpec = new SecretKeySpec(encryptedWordbytes, "AES");
AuthLogger.logDebug("EnDecryptor:encrypt():Done generating the key...");
Cipher cipherKey =Cipher.getInstance("AES/CBC/PKCS5Padding", "IBMJCE");
byte[] iv = new byte[16];
IvParameterSpec spec = null;
for(int i=0;i<16;i++)
{
iv[i]=(byte)i;
}
spec = new IvParameterSpec(iv);
cipherKey.init(Cipher.ENCRYPT_MODE, KeySpec, spec);
byte[] encryptedDataBytes = cipherKey.doFinal(word.getBytes());
String base64data = new String(Base64.encode(encryptedDataBytes));
AuthLogger.logDebug("EnDecryptor:encrypt():BASE64DATA="+base64data);
byte[] encryptedKeyBytes = MD5.getHash(encryptedDataBytes);
SecretKeySpec KeySpec2 = new SecretKeySpec(encryptedKeyBytes, "AES");
Cipher cipherKey2 = Cipher.getInstance("AES/CBC/PKCS5Padding", "IBMJCE");//Cipher.getInstance(DataEncryptDecrypt.AlgEnc);
cipherKey2.init(Cipher.ENCRYPT_MODE, KeySpec2, spec);
byte[] encryptedkey = cipherKey2.doFinal(encryptedWordbytes);
String base64Key = new String(Base64.encode(encryptedkey));
AuthLogger.logDebug("EnDecryptor:encrypt():BASE64Key="+base64Key);
String parm1 = "Data=" + URLEncoder.encode(base64data, "UTF-8") ;//$$$ encode(base64data);
String parm2 = "A=" + URLEncoder.encode(base64Key, "UTF-8") ;//$$$ encode(base64Key);
//encWord="Data="+parm1+"&A="+parm2;
encWord=parm1+"&"+parm2;
}catch(Exception e)
{
e.printStackTrace();
}
return encWord;
}
public static String decrypt(String encData, String encKey)
{
addProvider();
String decryptedData="";
byte[] abKeysKey=null;
try
{
byte[] abEncryptedKeys=(Base64.decode(encKey.getBytes()));
if (null == encData)
{
throw new NullPointerException("EnDecryptor:decrypt(): No data to be decryopted provided!");
}
AuthLogger.logDebug("EnDecryptor:decrypt():Generating a the HASH of the data...");
abKeysKey = MD5.getHash(Base64.decode(encData.getBytes()));
// Create a Rijndael key
SecretKeySpec KeySpec = new SecretKeySpec(abKeysKey, "AES");
Cipher cipherKey = Cipher.getInstance("AES/CBC/PKCS5Padding", "IBMJCE");//Cipher.getInstance(DataEncryptDecrypt.AlgEnc);
IvParameterSpec spec = null;
byte[] iv = new byte[16];
for(int i=0;i<16;i++)
{
iv[i]=(byte)i;
}
spec = new IvParameterSpec(iv);
cipherKey.init(Cipher.DECRYPT_MODE, KeySpec, spec);
byte[] abKeys = cipherKey.doFinal(abEncryptedKeys);
String base64key = new String(Base64.encode(abKeys));
AuthLogger.logDebug("EnDecryptor:decrypt():BASE64 DECODED KEY="+base64key);
//byte[] encryptedKeyBytes = MD5.getHash(encryptedDataBytes);
SecretKeySpec KeySpec2 = new SecretKeySpec(abKeys, "AES");
Cipher cipherKey2 = Cipher.getInstance("AES/CBC/PKCS5Padding", "IBMJCE");//Cipher.getInstance(DataEncryptDecrypt.AlgEnc);
cipherKey2.init(Cipher.DECRYPT_MODE, KeySpec2, spec);
byte[] decodedData = cipherKey2.doFinal(Base64.decode(encData.getBytes()));
decryptedData= new String(decodedData);
AuthLogger.logDebug("EnDecryptor:decrypt():decoded data="+decryptedData);
}catch(Exception e)
{
e.printStackTrace();
}
return decryptedData;
}
}
在这个代码中,我可以主要编码A-Z和a-z,0-9和+,/但我不能编码任何特殊字符,如(〜,@,!等)或国际字符,如(ê等) 任何人都可以提出任何建议,因为我需要编码和解码像这样的字符任何帮助将不胜感激。
新修改
如果我使用import java.io.IOException;
它会解决我的问题吗?
答案 0 :(得分:0)
我知道使用sun
包不好,但我这样做了它主要编码所有空间和国际字符,除了这里的一两个代码
import java.io.IOException;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
// Java Base64 Encoder / Java Base64 Decoder
public class Base64Test {
public static void main(String[] args) {
BASE64Decoder decoder = new BASE64Decoder();
BASE64Encoder encoder = new BASE64Encoder();
try {
String encodedBytes = encoder.encodeBuffer("(@@@@&&&&&)".getBytes());
System.out.println("encodedBytes " + encodedBytes);
byte[] decodedBytes = decoder.decodeBuffer(encodedBytes);
System.out.println("decodedBytes " + new String(decodedBytes));
} catch (IOException e) {
e.printStackTrace();
}
}
}
输出
encodedBytes KEBAQEAmJiYmJik=
decodedBytes (@@@@&&&&&)