JavaʵÏÖMD5¼ÓÃܽâÃÜÀà
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JavaʵÏÖMD5¼ÓÃÜÒÔ¼°½âÃÜÀ࣬¸½´ø²âÊÔÀ࣬¾ßÌå¼û´úÂë¡£
MD5¼ÓÃܽâÃÜÀà——MyMD5Util,´úÂëÈçÏ£º
package com.zyg.security.md5;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.Arrays;
public class MyMD5Util {
private static final String HEX_NUMS_STR="0123456789ABCDEF";
private static final Integer SALT_LENGTH = 12;
/**
* ½«16½øÖÆ×Ö·û´®×ª»»³É×Ö½ÚÊý×é
* @param hex
* @return
*/
public static byte[] hexStringToByte(String hex) {
int len = (hex.length() / 2);
byte[] result = new byte[len];
char[] hexChars = hex.toCharArray();
for (int i = 0; i < len; i++) {
int pos = i * 2;
result[i] = (byte) (HEX_NUMS_STR.indexOf(hexChars[pos]) << 4
| HEX_NUMS_STR.indexOf(hexChars[pos + 1]));
}
return result;
}
/**
* ½«Ö¸¶¨byteÊý×éת»»³É16½øÖÆ×Ö·û´®
* @param b
* @return
*/
public static String byteToHexString(byte[] b) {
StringBuffer hexString = new StringBuffer();
for (int i = 0; i < b.length; i++) {
String hex = Integer.toHexString(b[i] & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
hexString.append(hex.toUpperCase());
}
return hexString.toString();
}
/**
* ÑéÖ¤¿ÚÁîÊÇ·ñºÏ·¨
* @param password
* @param passwordInDb
* @return
* @throws NoSuchAlgorithmException
* @throws UnsupportedEncodingException
*/
public static boolean validPassword(Str
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