packagecom.ompa.common.utils;importjava.security.MessageDigest;importjava.security.NoSuchAlgorithmException;importjavax.crypto.Mac;importjavax.crypto.SecretKey;importjavax.crypto.spec.SecretKeySpec;/*** 采用MD5加密

*

*@authorzhangcd

* @date 2016-4-29*/

public classEncryptUtil {private static final String MAC_NAME = "HmacSHA1";private static final String ENCODING = "UTF-8";private static final String key = "iloveyou";/***

* MD5加码 生成32位md5码*/

public staticString string2MD5(String inStr){

MessageDigest md5= null;try{

md5= MessageDigest.getInstance("MD5");

}catch(Exception e){

System.out.println(e.toString());

e.printStackTrace();return "";

}char[] charArray =inStr.toCharArray();byte[] byteArray = new byte[charArray.length];for (int i = 0; i < charArray.length; i++)

byteArray[i]= (byte) charArray[i];byte[] md5Bytes =md5.digest(byteArray);

StringBuffer hexValue= newStringBuffer();for (int i = 0; i < md5Bytes.length; i++){int val = ((int) md5Bytes[i]) & 0xff;if (val < 16)

hexValue.append("0");

hexValue.append(Integer.toHexString(val));

}returnhexValue.toString();

}/***

* MD5加密 生成32位md5码*/

public staticString stringMD5(String inStr){returnstring2MD5(string2MD5(inStr));

}/*** 加密解密算法*/

public staticString convertMD5(String inStr){char[] a =inStr.toCharArray();for (int i = 0; i < a.length; i++){

a[i]= (char) (a[i] ^ 't');

}

String s= newString(a);returns;

}/*** HMAC-SHA1

*@paramencryptText

*@paramencryptKey

*@return*@throwsException*/

public static String HmacSHA1Encrypt(String encryptText, String encryptKey) throwsException

{byte[] data=encryptKey.getBytes(ENCODING);

SecretKey secretKey= newSecretKeySpec(data, MAC_NAME);

Mac mac=Mac.getInstance(MAC_NAME);

mac.init(secretKey);byte[] text =encryptText.getBytes(ENCODING);byte[] str =mac.doFinal(text);//Create Hex String

StringBuffer hexString = newStringBuffer();//字节数组转换为 十六进制 数

for (int i = 0; i < str.length; i++) {

String shaHex= Integer.toHexString(str[i] & 0xFF);if (shaHex.length() < 2) {

hexString.append(0);

}

hexString.append(shaHex);

}returnhexString.toString();

}public staticString convertSHA1(String instr){try{returnHmacSHA1Encrypt(instr,key);

}catch(Exception e) {//TODO Auto-generated catch block

e.printStackTrace();return "";

}

}//测试主函数

public static void main(String args[]) throwsException {//哈希散列带秘钥加密

String tt = convertSHA1("123456");

System.out.println(tt);//MD5加密

String s = new String("123456");

System.out.println("原始：" +s);

System.out.println("MD5后：" +string2MD5(s));

System.out.println("MD5加密后：" +stringMD5(s));

}

}