public class DESCode {
private String algorithm = "DESede/CBC/PKCS7Padding";//加密方法／运算模式／填充模式
private String charset = "UTF-8";//编码
private Cipher encCipher;//加密cipher
private Cipher decCipher;//解密cipher
private String encStrKey =null;//密钥
private String encSourceSpliter="$";
private String hashSourceSpliter="_";
private MessageDigest digest;//计算摘要对象
private KeyGenerator keyGene;
public String getKey()
{
return this.keyGene.getKey();
}
public DESCode(KeyGenerator keyGene)throws NoSuchAlgorithmException,
NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, DecoderException {
Security
.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());//添加jce支持(sun有其默认实现)
this.keyGene = keyGene;
digest=MessageDigest.getInstance("MD5");
this.encStrKey = keyGene.getEncKeyStr();
init();
}
private void init() throws NoSuchAlgorithmException,
NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, DecoderException {
encCipherInit();
decCipherInit();
}
private void encCipherInit() throws NoSuchAlgorithmException,
NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, DecoderException {
DESedeKeySpec encKey = new DESedeKeySpec(Hex.decodeHex(this.encStrKey
.toCharArray()));
SecretKey secrekey = new SecretKeySpec(encKey.getKey(), algorithm);
this.encCipher = Cipher.getInstance(this.algorithm);
IvParameterSpec iv = new IvParameterSpec(new byte[] { 1, 2, 3, 4, 5, 6,
7, 8 });//iv向量(加密解密双方要一致)
encCipher.init(Cipher.ENCRYPT_MODE, secrekey, iv);//初始化cipher对象
}
private void decCipherInit() throws InvalidKeyException, DecoderException,
NoSuchAlgorithmException, NoSuchPaddingException,
InvalidAlgorithmParameterException {
DESedeKeySpec encKey = new DESedeKeySpec(Hex.decodeHex(this.encStrKey
.toCharArray()));
SecretKey secrekey = new SecretKeySpec(encKey.getKey(), algorithm);
this.decCipher = Cipher.getInstance(this.algorithm);
IvParameterSpec iv = new IvParameterSpec(new byte[] { 1, 2, 3, 4, 5, 6,
7, 8 });
decCipher.init(Cipher.DECRYPT_MODE, secrekey, iv);//初始化cipher对象
}
public String encrypt(String sourceMsg)//加密数据
throws UnsupportedEncodingException, IllegalBlockSizeException,
BadPaddingException, InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidAlgorithmParameterException, DecoderException {
if(!this.encStrKey.equals(this.keyGene.getEncKeyStr()))
{
this.encStrKey = keyGene.getEncKeyStr();
init();
}
byte[] msg = sourceMsg.getBytes(this.charset);
byte[] value = this.encCipher.doFinal(msg);
return new String(Base64.encodeBase64(value));
}
public String decrypt(String msgStr) throws IllegalBlockSizeException,
BadPaddingException, UnsupportedEncodingException, InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidAlgorithmParameterException, DecoderException {//解密数据
if(!this.encStrKey.equals(this.keyGene.getEncKeyStr()))
{
this.encStrKey = keyGene.getEncKeyStr();
init();
}
byte[] temp = Base64.decodeBase64(msgStr);
byte[] value = this.decCipher.doFinal(temp);
String result = new String(value, this.charset);
return URLDecoder.decode(result, this.charset);
}
public String md5EnCode(String src,boolean replace)
{
if(replace)
{
src=src.replace(this.encSourceSpliter, this.hashSourceSpliter);
}
return Hex.encodeHexString(digest.digest(src.getBytes()));
}
public String urlEncode(String... str) throws UnsupportedEncodingException {
StringBuilder sb = new StringBuilder();
for (String s : str) {
sb.append(URLEncoder.encode(s, this.charset));
sb.append(this.encSourceSpliter);
}
int len = sb.length();
if (len > 0) {
sb.delete(len-1, len );
}
return sb.toString();
}
public static void main(String[] args) throws Exception {
DESCode descode = new DESCode(new KeyGenerator());
MessageDigest dig = MessageDigest.getInstance("MD5");
String msg1 = "ybcola$"
+ Hex.encodeHexString(dig.digest("pppppppp".getBytes()))
+ "$www.yltch.net";
String msg2 = descode.urlEncode("ybcola", Hex.encodeHexString(dig
.digest("pppppppp".getBytes())), "www.yltch.net");
String msg3 = descode.urlEncode("弟弟", "1000", "7", "根据推广逻辑，增加的奖励",
"dz_02156356548", "www.yltch.net");
System.out.println(msg1);
System.out.println(msg2);
System.out.println(msg3);
System.out.println("-------encode------");
msg1= descode.encrypt(msg1);
msg2= descode.encrypt(msg2);
msg3= descode.encrypt(msg3);
System.out.println(msg1);
System.out.println(msg2);
System.out.println(msg3);
System.out.println("------decode--------");
// String msg4 =
// "hOWzn/a38v2idQegaPnBUqJL3jsF9uh8OBSQ+LKoCeXGNkXX2ceCIn14g6FbFF4StrBoOfBH6UPRoHvO/Ftwp3qL4FHf/1+3aCU3K0esqqQ=";
System.out.println(descode.decrypt(msg1));
System.out.println(descode.decrypt(msg2));
System.out.println(descode.decrypt(msg3));
}
}
public class KeyGenerator {
private String key="hongsoft";
private String encKeyStr="9F8C243AEE347183B39DD81B20941E86BC11529B034C8842";
public String getEncKeyStr() {
return encKeyStr;
}
public void setEncKeyStr(String encKeyStr) {
this.encKeyStr = encKeyStr;
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
}
