Home > Article > Backend Development > Java 与 PHP 的MD5加密为什么不一样?
php代码:
echo md5(chr(142));
import java.math.BigInteger;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class utils { public static void main(String[] args) { char ss=(char)142;//这里换成56后md5后和php版的 md5后的结果一样 System.out.println(md5(ss+"")); } public static String md5(String plainText) { byte[] secretBytes = null; try { secretBytes = MessageDigest.getInstance("md5").digest( plainText.getBytes()); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("没有md5这个算法!"); } String md5code = new BigInteger(1, secretBytes).toString(16); for (int i = 0; i < 32 - md5code.length(); i++) { md5code = "0" + md5code; } return md5code; }}
plainText.getBytes( "GBK");
plainText.getBytes( "GBK");
不知道为什么要
for (int i = 0; i md5code = "0" + md5code;
}
而且终值还始终在变
public static String getMd5(byte[] buffer) throws NoSuchAlgorithmException{ String s = null; char hexDigist[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; MessageDigest md = MessageDigest.getInstance("MD5"); md.update(buffer); byte[] datas = md.digest(); //16个字节的长整数 char[] str = new char[2*16]; int k = 0; for(int i=0;i<16;i++){ byte b = datas[i]; str[k++] = hexDigist[b>>>4 & 0xf];//高4位 str[k++] = hexDigist[b & 0xf];//低4位 } s = new String(str); return s; }
public static void main(String[] args) { try { System.out.println(getMd5("123".getBytes())); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
echo md5("123");
public static String getMd5(byte[] buffer) throws NoSuchAlgorithmException{ String s = null; char hexDigist[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; MessageDigest md = MessageDigest.getInstance("MD5"); md.update(buffer); byte[] datas = md.digest(); //16个字节的长整数 char[] str = new char[2*16]; int k = 0; for(int i=0;i<16;i++){ byte b = datas[i]; str[k++] = hexDigist[b>>>4 & 0xf];//高4位 str[k++] = hexDigist[b & 0xf];//低4位 } s = new String(str); return s; }
public static void main(String[] args) { try { System.out.println(getMd5("123".getBytes())); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
echo md5("123");
<?php//php为正确的 结果:CA15B8C6D72A4442942045956DD371F8$password="123456";$pt='\x00\x00\x00\x00\x16\x9d\x56\x75';$vc='!PRY';$passwd = jspassword($password,$pt, $vc);echo "<br>结果:".$pt."<br>".$vc."<br>密码:".$passwd."<br><br>";function jspassword($p,$pt,$vc,$md5 = true){ echo $p.":".$pt.":".$vc; if($md5) { $p = strtoupper(md5($p)); } //echo "<br>".$p;exit; $len = strlen($p); $temp = null; //echo "<br>md5Password:".$p."<br>"; for ($i=0; $i < $len ; $i = $i + 2) { //echo "<br>i:".$i; $temp .= '\x'.substr($p, $i,2); } //echo "<br>".$temp."<br>"; //echo "<br><br><br>--->>>".md5(hex2asc($temp).hex2asc($pt)); //$str=hex2asc($temp).hex2asc($pt); //echo "<br>内部:".$str."-->".md5(hex2asc($temp))."-->".md5(hex2asc($pt)); return strtoupper(md5(strtoupper(md5(hex2asc($temp).hex2asc($pt))).$vc));}/** * 十六进制转字符 * * @access private * @param string $str * @return string */function hex2asc($str){ //echo "处理前:".$str."<br>"; //print_r( explode('\x', $str)); $str = join('', explode('\x', $str)); //echo "<br>处理后:".$str; $len = strlen($str); $data = null; for ($i=0;$i<$len;$i+=2) { //echo "<br>::".substr($str,$i,2); echo "<br>".hexdec(substr($str,$i,2)).":::".chr(hexdec(substr($str,$i,2)))."->".md5(chr(hexdec(substr($str,$i,2)))); $data.=chr(hexdec(substr($str,$i,2))); } echo "<br>".md5($data)."<br>"; return $data;}?>
import java.math.BigInteger;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class utils { public static void main(String[] args) { utils u=new utils(); String up=u.jspassword("123456", "\\x00\\x00\\x00\\x00\\x16\\x9d\\x56\\x75", "!PRY", true); System.out.println("-----------------------------"); System.out.println(up); } public String jspassword(String password,String pt,String vc,boolean md5){ if(md5) { password = utils.md5(password).toUpperCase(); } int len =password.length(); String temp=""; for (int i=0; i < len ; i = i + 2) { temp += "\\x"+password.substring(i, i+2); } return (utils.md5(utils.md5(utils.hex2asc(temp)+utils.hex2asc(pt)) .toUpperCase()+vc) ).toUpperCase(); } public static String hex2asc(String str){ String [] s=str.trim().split("\\\\x"); //System.out.println(s.length); StringBuffer sb=new StringBuffer(); for(String sItem:s){ //System.out.println(sItem); sb.append(sItem); } int len = sb.toString().length(); //String data = null; StringBuffer sb1=new StringBuffer(); for (int i=0;i<len;i+=2) { int x=Integer.parseInt(sb.toString().substring(i, i+2),16); char ss=(char) x; System.out.println(x+"::"+ss+"转换后->"+utils.md5(String.valueOf(ss))); sb1.append(String.valueOf(ss)); } return sb1.toString(); } public static String md5(String plainText) { byte[] secretBytes = null; try { secretBytes = MessageDigest.getInstance("md5").digest( plainText.getBytes()); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("没有md5这个算法!"); } String md5code = new BigInteger(1, secretBytes).toString(16); for (int i = 0; i < 32 - md5code.length(); i++) { md5code = "0" + md5code; } return md5code; } }
不知道为什么要
for (int i = 0; i md5code = "0" + md5code;
}
而且终值还始终在变
public static String getMd5(byte[] buffer) throws NoSuchAlgorithmException{ String s = null; char hexDigist[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; MessageDigest md = MessageDigest.getInstance("MD5"); md.update(buffer); byte[] datas = md.digest(); //16个字节的长整数 char[] str = new char[2*16]; int k = 0; for(int i=0;i<16;i++){ byte b = datas[i]; str[k++] = hexDigist[b>>>4 & 0xf];//高4位 str[k++] = hexDigist[b & 0xf];//低4位 } s = new String(str); return s; }
public static void main(String[] args) { try { System.out.println(getMd5("123".getBytes())); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
echo md5("123");
<?php//php为正确的 结果:CA15B8C6D72A4442942045956DD371F8$password="123456";$pt='\x00\x00\x00\x00\x16\x9d\x56\x75';$vc='!PRY';$passwd = jspassword($password,$pt, $vc);echo "<br>结果:".$pt."<br>".$vc."<br>密码:".$passwd."<br><br>";function jspassword($p,$pt,$vc,$md5 = true){ echo $p.":".$pt.":".$vc; if($md5) { $p = strtoupper(md5($p)); } //echo "<br>".$p;exit; $len = strlen($p); $temp = null; //echo "<br>md5Password:".$p."<br>"; for ($i=0; $i < $len ; $i = $i + 2) { //echo "<br>i:".$i; $temp .= '\x'.substr($p, $i,2); } //echo "<br>".$temp."<br>"; //echo "<br><br><br>--->>>".md5(hex2asc($temp).hex2asc($pt)); //$str=hex2asc($temp).hex2asc($pt); //echo "<br>内部:".$str."-->".md5(hex2asc($temp))."-->".md5(hex2asc($pt)); return strtoupper(md5(strtoupper(md5(hex2asc($temp).hex2asc($pt))).$vc));}/** * 十六进制转字符 * * @access private * @param string $str * @return string */function hex2asc($str){ //echo "处理前:".$str."<br>"; //print_r( explode('\x', $str)); $str = join('', explode('\x', $str)); //echo "<br>处理后:".$str; $len = strlen($str); $data = null; for ($i=0;$i<$len;$i+=2) { //echo "<br>::".substr($str,$i,2); echo "<br>".hexdec(substr($str,$i,2)).":::".chr(hexdec(substr($str,$i,2)))."->".md5(chr(hexdec(substr($str,$i,2)))); $data.=chr(hexdec(substr($str,$i,2))); } echo "<br>".md5($data)."<br>"; return $data;}?>
import java.math.BigInteger;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class utils { public static void main(String[] args) { utils u=new utils(); String up=u.jspassword("123456", "\\x00\\x00\\x00\\x00\\x16\\x9d\\x56\\x75", "!PRY", true); System.out.println("-----------------------------"); System.out.println(up); } public String jspassword(String password,String pt,String vc,boolean md5){ if(md5) { password = utils.md5(password).toUpperCase(); } int len =password.length(); String temp=""; for (int i=0; i < len ; i = i + 2) { temp += "\\x"+password.substring(i, i+2); } return (utils.md5(utils.md5(utils.hex2asc(temp)+utils.hex2asc(pt)) .toUpperCase()+vc) ).toUpperCase(); } public static String hex2asc(String str){ String [] s=str.trim().split("\\\\x"); //System.out.println(s.length); StringBuffer sb=new StringBuffer(); for(String sItem:s){ //System.out.println(sItem); sb.append(sItem); } int len = sb.toString().length(); //String data = null; StringBuffer sb1=new StringBuffer(); for (int i=0;i<len;i+=2) { int x=Integer.parseInt(sb.toString().substring(i, i+2),16); char ss=(char) x; System.out.println(x+"::"+ss+"转换后->"+utils.md5(String.valueOf(ss))); sb1.append(String.valueOf(ss)); } return sb1.toString(); } public static String md5(String plainText) { byte[] secretBytes = null; try { secretBytes = MessageDigest.getInstance("md5").digest( plainText.getBytes()); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("没有md5这个算法!"); } String md5code = new BigInteger(1, secretBytes).toString(16); for (int i = 0; i < 32 - md5code.length(); i++) { md5code = "0" + md5code; } return md5code; } }
function jspassword($p,$pt,$vc,$md5 = true)
{
echo $p.":".$pt.":".$vc;
if($md5)
{
$p = strtoupper(md5($p));
}
//echo "
".$p;exit;
$len = strlen($p);
$temp = null;
//echo "
md5Password:".$p."
";
for ($i=0; $i {
//echo "
i:".$i;
$temp .= '\x'.substr($p, $i,2);
}
//echo "
".$temp."
";
//echo "
--->>>".md5(hex2asc($temp).hex2asc($pt));
//$str=hex2asc($temp).hex2asc($pt);
//echo "
内部:".$str."-->".md5(hex2asc($temp))."-->".md5(hex2asc($pt));
return strtoupper(md5(strtoupper(md5(hex2asc($temp).hex2asc($pt))).$vc));
}
/**
* 十六进制转字符
*
* @access private
* @param string $str
* @return string
*/
function hex2asc($str)
{
//echo "处理前:".$str."
";
//print_r( explode('\x', $str));
$str = join('', explode('\x', $str));
//echo "
处理后:".$str;
$len = strlen($str);
$data = null;
for ($i=0;$i {
//echo "
::".substr($str,$i,2);
echo "
".hexdec(substr($str,$i,2)).":::".chr(hexdec(substr($str,$i,2)))."->".md5(chr(hexdec(substr($str,$i,2))));
$data.=chr(hexdec(substr($str,$i,2)));
}
echo "
".md5($data)."
";
return $data;
}
?>
[/code]
import java.math.BigInteger;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class utils { public static void main(String[] args) { utils u=new utils(); String up=u.jspassword("123456", "\\x00\\x00\\x00\\x00\\x16\\x9d\\x56\\x75", "!PRY", true); System.out.println("-----------------------------"); System.out.println(up); } public String jspassword(String password,String pt,String vc,boolean md5){ if(md5) { password = utils.md5(password).toUpperCase(); } int len =password.length(); String temp=""; for (int i=0; i < len ; i = i + 2) { temp += "\\x"+password.substring(i, i+2); } return (utils.md5(utils.md5(utils.hex2asc(temp)+utils.hex2asc(pt)) .toUpperCase()+vc) ).toUpperCase(); } public static String hex2asc(String str){ String [] s=str.trim().split("\\\\x"); //System.out.println(s.length); StringBuffer sb=new StringBuffer(); for(String sItem:s){ //System.out.println(sItem); sb.append(sItem); } int len = sb.toString().length(); //String data = null; StringBuffer sb1=new StringBuffer(); for (int i=0;i<len;i+=2) { int x=Integer.parseInt(sb.toString().substring(i, i+2),16); char ss=(char) x; System.out.println(x+"::"+ss+"转换后->"+utils.md5(String.valueOf(ss))); sb1.append(String.valueOf(ss)); } return sb1.toString(); } public static String md5(String plainText) { byte[] secretBytes = null; try { secretBytes = MessageDigest.getInstance("md5").digest( plainText.getBytes()); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("没有md5这个算法!"); } String md5code = new BigInteger(1, secretBytes).toString(16); for (int i = 0; i < 32 - md5code.length(); i++) { md5code = "0" + md5code; } return md5code; } }
不知道为什么要
for (int i = 0; i md5code = "0" + md5code;
}
而且终值还始终在变
public static String getMd5(byte[] buffer) throws NoSuchAlgorithmException{ String s = null; char hexDigist[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; MessageDigest md = MessageDigest.getInstance("MD5"); md.update(buffer); byte[] datas = md.digest(); //16个字节的长整数 char[] str = new char[2*16]; int k = 0; for(int i=0;i<16;i++){ byte b = datas[i]; str[k++] = hexDigist[b>>>4 & 0xf];//高4位 str[k++] = hexDigist[b & 0xf];//低4位 } s = new String(str); return s; }
public static void main(String[] args) { try { System.out.println(getMd5("123".getBytes())); } catch (NoSuchAlgorithmException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
echo md5("123");
<?php//php为正确的 结果:CA15B8C6D72A4442942045956DD371F8$password="123456";$pt='\x00\x00\x00\x00\x16\x9d\x56\x75';$vc='!PRY';$passwd = jspassword($password,$pt, $vc);echo "<br>结果:".$pt."<br>".$vc."<br>密码:".$passwd."<br><br>";function jspassword($p,$pt,$vc,$md5 = true){ echo $p.":".$pt.":".$vc; if($md5) { $p = strtoupper(md5($p)); } //echo "<br>".$p;exit; $len = strlen($p); $temp = null; //echo "<br>md5Password:".$p."<br>"; for ($i=0; $i < $len ; $i = $i + 2) { //echo "<br>i:".$i; $temp .= '\x'.substr($p, $i,2); } //echo "<br>".$temp."<br>"; //echo "<br><br><br>--->>>".md5(hex2asc($temp).hex2asc($pt)); //$str=hex2asc($temp).hex2asc($pt); //echo "<br>内部:".$str."-->".md5(hex2asc($temp))."-->".md5(hex2asc($pt)); return strtoupper(md5(strtoupper(md5(hex2asc($temp).hex2asc($pt))).$vc));}/** * 十六进制转字符 * * @access private * @param string $str * @return string */function hex2asc($str){ //echo "处理前:".$str."<br>"; //print_r( explode('\x', $str)); $str = join('', explode('\x', $str)); //echo "<br>处理后:".$str; $len = strlen($str); $data = null; for ($i=0;$i<$len;$i+=2) { //echo "<br>::".substr($str,$i,2); echo "<br>".hexdec(substr($str,$i,2)).":::".chr(hexdec(substr($str,$i,2)))."->".md5(chr(hexdec(substr($str,$i,2)))); $data.=chr(hexdec(substr($str,$i,2))); } echo "<br>".md5($data)."<br>"; return $data;}?>
import java.math.BigInteger;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class utils { public static void main(String[] args) { utils u=new utils(); String up=u.jspassword("123456", "\\x00\\x00\\x00\\x00\\x16\\x9d\\x56\\x75", "!PRY", true); System.out.println("-----------------------------"); System.out.println(up); } public String jspassword(String password,String pt,String vc,boolean md5){ if(md5) { password = utils.md5(password).toUpperCase(); } int len =password.length(); String temp=""; for (int i=0; i < len ; i = i + 2) { temp += "\\x"+password.substring(i, i+2); } return (utils.md5(utils.md5(utils.hex2asc(temp)+utils.hex2asc(pt)) .toUpperCase()+vc) ).toUpperCase(); } public static String hex2asc(String str){ String [] s=str.trim().split("\\\\x"); //System.out.println(s.length); StringBuffer sb=new StringBuffer(); for(String sItem:s){ //System.out.println(sItem); sb.append(sItem); } int len = sb.toString().length(); //String data = null; StringBuffer sb1=new StringBuffer(); for (int i=0;i<len;i+=2) { int x=Integer.parseInt(sb.toString().substring(i, i+2),16); char ss=(char) x; System.out.println(x+"::"+ss+"转换后->"+utils.md5(String.valueOf(ss))); sb1.append(String.valueOf(ss)); } return sb1.toString(); } public static String md5(String plainText) { byte[] secretBytes = null; try { secretBytes = MessageDigest.getInstance("md5").digest( plainText.getBytes()); } catch (NoSuchAlgorithmException e) { throw new RuntimeException("没有md5这个算法!"); } String md5code = new BigInteger(1, secretBytes).toString(16); for (int i = 0; i < 32 - md5code.length(); i++) { md5code = "0" + md5code; } return md5code; } }
编码不对 换下试试