DES加密解密

package util;

import it.sauronsoftware.base64.Base64;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

/**
* DES加密解密---密钥长度8
*
* @author
* @date
* @version 1.0
*/
public class DESUtil {

private final static String ALGORITHM = "DES";
private final static String KEY = "key";

/**
* 加密文本（UTF-8编码）
*
* @param text
* @param key
* @return
* @throws Exception
*/
public static String encrypt(String text) {
try {
Cipher c = Cipher.getInstance(ALGORITHM);
c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(KEY.getBytes(), ALGORITHM));
byte[] data = c.doFinal(text.getBytes("UTF-8"));
return new String(Base64.encode(data));
} catch (Exception e) {
return null;
}
}

/**
* 解密文本（UTF-8编码）
*
* @param text
* @param key
* @return
* @throws Exception
*/
public static String decrypt(String text) {
try {
Cipher c = Cipher.getInstance(ALGORITHM);
c.init(Cipher.DECRYPT_MODE, new SecretKeySpec(KEY.getBytes(), ALGORITHM));
byte[] data = c.doFinal(Base64.decode(text.getBytes()));
return new String(data, "UTF-8");
} catch (Exception e) {
return null;
}
}

}