package com.hxzkoa.util;

import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

import net.sf.json.JSONObject;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class AesUtil {
	private static final Log _log = LogFactory.getLog(AesUtil.class);
	/** 
	 * 加密 
	 *  
	 * @param content 需要加密的内容 
	 * @param password  加密密码 
	 * @return 
	 */  
	public static String encrypt(String content, String password) {  
	      /*  try {
	                KeyGenerator kgen = KeyGenerator.getInstance("AES");  
	                kgen.init(128, new SecureRandom(password.getBytes()));  
	                SecretKey secretKey = kgen.generateKey();  
	                byte[] enCodeFormat = secretKey.getEncoded();  
	                SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");  
	                Cipher cipher = Cipher.getInstance("AES");// 创建密码器  
	                byte[] byteContent = content.getBytes("utf-8");  
	                cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化  
	                byte[] result = cipher.doFinal(byteContent); 
	                String encryptResultStr = parseByte2HexStr(result); 
	               // return new String(Base64.encode(result)); // 加密  
	                return encryptResultStr; // 加密  
	        } catch (NoSuchAlgorithmException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (NoSuchPaddingException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (InvalidKeyException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (UnsupportedEncodingException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (IllegalBlockSizeException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (BadPaddingException e) {  
	                _log.error(e.getMessage(),e);  
	        }  
	        return null;  *///换linux后，加解密有问题，先注掉
		return content;
	}  
	
	/**解密 
	 * @param content  待解密内容 
	 * @param password 解密密钥 
	 * @return 
	 */  
	public static String decrypt(String content, String password) { 
		/*byte[] contentbyte = parseHexStr2Byte(content);  
	        try {  
	        	
	                 KeyGenerator kgen = KeyGenerator.getInstance("AES");  
	                 kgen.init(128, new SecureRandom(password.getBytes()));  
	                 SecretKey secretKey = kgen.generateKey();  
	                 byte[] enCodeFormat = secretKey.getEncoded();  
	                 SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");              
	                 Cipher cipher = Cipher.getInstance("AES");// 创建密码器  
	                cipher.init(Cipher.DECRYPT_MODE, key);// 初始化  
	                byte[] result = cipher.doFinal(contentbyte);  
	                
	                return new String(result); // 加密  
	        } catch (NoSuchAlgorithmException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (NoSuchPaddingException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (InvalidKeyException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (IllegalBlockSizeException e) {  
	                _log.error(e.getMessage(),e);  
	        } catch (BadPaddingException e) {  
	                _log.error(e.getMessage(),e);  
	        }  
	        return null;  *///换linux后，加解密有问题，先注掉
		return content;
	}  

	public static String parseByte2HexStr(byte buf[]) {  
        StringBuffer sb = new StringBuffer();  
        for (int i = 0; i < buf.length; i++) {  
                String hex = Integer.toHexString(buf[i] & 0xFF);  
                if (hex.length() == 1) {  
                        hex = '0' + hex;  
                }  
                sb.append(hex.toUpperCase());  
        }  
        return sb.toString();  
}  
	public static byte[] parseHexStr2Byte(String hexStr) {  
        if (hexStr.length() < 1)  
                return null;  
        byte[] result = new byte[hexStr.length()/2];  
        for (int i = 0;i< hexStr.length()/2; i++) {  
                int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);  
                int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);  
                result[i] = (byte) (high * 16 + low);  
        }  
        return result;  
}  
}