我想把java的一個加密類別用PHP來寫,但我看了java的這個寫法讓我非常頭痛。完全不按邏輯出牌。我找到一個完整的類,本來想著參考一下,經過多次實驗,無法將我上傳的加密類翻譯成PHP。代各位幫忙。謝謝。
/**
3Des幫助類別
#*/
#public class ThreeDESUtil {
private static final String Algorithm = "DESede"; // 定义 加密算法,可用
// DES,DESede,Blowfish
private static byte[] keybyte = { 0x11, 0x28, 0x4F, 0x58, (byte) 0x88,
0x10, 0x40, 0x38, 0x28, 0x25, 0x79, 0x51, (byte) 0xCB, (byte) 0xDD,
0x55, 0x66, 0x77, 0x29, 0x74, (byte) 0x98, 0x30, 0x40, 0x36,
(byte) 0xE2 }; // 24字节的密钥
public static String encryptMode(String src) {
String encrypt = null;
try {
byte[] ret = encryptMode(src.getBytes("UTF-8"));
encrypt = new String(Base64.encode(ret));
encrypt = encrypt.replaceAll("=", "Q");
} catch (Exception e) {
logger.error("ThreeDES Error");
}
return encrypt;
}
/**
* 加密
*
* @param src
* @return
*/
private static byte[] encryptMode(byte[] src) {
try {
// 生成密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
// 加密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.ENCRYPT_MODE, deskey);
return c1.doFinal(src);
} catch (Exception e) {
logger.error("ThreeDES Error");
}
return null;
}
// for test
public static void main(String[] args) {
String szSrc = "12345678";
String encoded = encryptMode(szSrc);
System.out.println("加密后的字符串:" + encoded);
//1xZ9Hssih5z0pegyf7aUcgQQ
}
}
以上是我需要轉換成PHP的java類,
附上以下參考文章
/q/10...
以下是我參考後寫的PHP程式碼。
<?php
$EasyCrypt3Des = new EasyCrypt3Des();
echo $EasyCrypt3Des->encrypt('12345678');
//java 结果 '1xZ9Hssih5z0pegyf7aUcgQQ';
exit;
class EasyCrypt3Des {
private $_key = array("0x11", "0x28", "0x4F", "0x58", "0x88", "0x10", "0x40", "0x38", "0x28", "0x25", "0x79", "0x51","0xCB", "0xDD", "0x55", "0x66", "0x77", "0x29", "0x74", "0x98", "0x30", "0x40", "0x36", "0xE2");
private $keyStr = "";
public function __construct() {
foreach($this->_key as $keyItem) {
$this->keyStr .= $this->hexToStr($keyItem);
}
}
public function encrypt($str) {
$td = $this->gettd();
$ret = mcrypt_generic($td,$str);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
$result = base64_encode($ret);
return str_replace('=','Q',$result);
}
private function getiv() {
return pack('H16','0000000000000000');
}
private function gettd() {
$iv = $this->getiv();
$td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
mcrypt_generic_init($td, $this->keyStr,$iv);
return $td;
}
private function hexToStr($hex){
$string='';
for ($i=0; $i < strlen($hex)-1; $i+=2){
$string .= chr(hexdec($hex[$i].$hex[$i+1]));
}
return $string;
}
}
怪我咯2017-06-15 09:23:44
問題已解決,還是參考先前的文章:
1、加密後的字元未進行字元轉換,所以無法進行解密,缺少一個步驟。
2、參考我發的文章鏈接,PHP類完全通用。可忽略我之前發布的程式碼,我會再整理一份對的。
java
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
public class ThreeDES {
private static final String Algorithm = "DESede"; //定義 加密演算法,可用 DES,DESede,Blowfish
//keybyte为加密密钥,长度为24字节
//src为被加密的数据缓冲区(源)
public static byte[] encryptMode(byte[] keybyte, byte[] src) {
try {
//生成密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//加密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.ENCRYPT_MODE, deskey);
return c1.doFinal(src);
} catch (java.security.NoSuchAlgorithmException e1) {
e1.printStackTrace();
} catch (javax.crypto.NoSuchPaddingException e2) {
e2.printStackTrace();
} catch (java.lang.Exception e3) {
e3.printStackTrace();
}
return null;
}
//keybyte为加密密钥,长度为24字节
//src为加密后的缓冲区
public static byte[] decryptMode(byte[] keybyte, byte[] src) {
try {
//生成密钥
SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//解密
Cipher c1 = Cipher.getInstance(Algorithm);
c1.init(Cipher.DECRYPT_MODE, deskey);
return c1.doFinal(src);
} catch (java.security.NoSuchAlgorithmException e1) {
e1.printStackTrace();
} catch (javax.crypto.NoSuchPaddingException e2) {
e2.printStackTrace();
} catch (java.lang.Exception e3) {
e3.printStackTrace();
}
return null;
}
//转换成十六进制字符串
public static String byte2hex(byte[] b) {
String hs="";
String stmp="";
for (int n=0;n<b.length;n++) {
stmp=(java.lang.Integer.toHexString(b[n] & 0XFF));
if (stmp.length()==1) hs=hs+"0"+stmp;
else hs=hs+stmp;
if (n<b.length-1) hs=hs+":";
}
return hs.toUpperCase();
}
public static void main(String[] args)
{
//添加新安全算法,如果用JCE就要把它添加进去
Security.addProvider(new com.sun.crypto.provider.SunJCE());
final byte[] keyBytes = {0x11, 0x28, 0x4F, 0x58, (byte)0x88, 0x10, 0x40, 0x38
, 0x28, 0x25, 0x79, 0x51, (byte)0xCB, (byte)0xDD, 0x55, 0x66
, 0x77, 0x29, 0x74, (byte)0x98, 0x30, 0x40, 0x36, (byte)0xE2}; //24字节的密钥
String szSrc = "12345678";
System.out.println("加密前的字符串:" + szSrc);
byte[] encoded = encryptMode(keyBytes, szSrc.getBytes());
System.out.println("加密后的字符串:" + new String(encoded));
byte[] srcBytes = decryptMode(keyBytes, encoded);
System.out.println("解密后的字符串:" + (new String(srcBytes)));
}
}
以上代碼完全取至 /q/10... 中
以下是PHP程式碼。
class EasyCrypt3Des {
private $_key = "";
public function __construct() {
$keyItem = array(
'0x11','0x28','0x4F','0x58','0x88','0x10','0x40','0x38','0x28','0x25','0x79','0x51',
'0xCB','0xDD','0x55','0x66','0x77','0x29','0x74','0x98','0x30','0x40','0x36','0xE2'
);
foreach($keyItem as $kitem) {
//转换成字符
$this->_key .= chr($kitem);
}
}
public function encrypt($str) {
$td = $this->gettd();
$ret = mcrypt_generic($td, $this->pkcs5_pad($str, 8));
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $this->strToHex($ret);
}
public function decrypt($str) {
$td = $this->gettd();
$ret = $this->pkcs5_unpad(mdecrypt_generic($td, $this->hexToStr($str)));
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $ret;
}
private function pkcs5_pad($text, $blocksize) {
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
private function pkcs5_unpad($text) {
$pad = ord($text{strlen($text) - 1});
if ($pad > strlen($text)) {
return false;
}
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) {
return false;
}
return substr($text, 0, -1 * $pad);
}
private function getiv() {
return pack('H16', '0000000000000000');
}
private function gettd() {
$iv = $this->getiv();
$td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
mcrypt_generic_init($td, $this->_key, $iv);
return $td;
}
private function strToHex($string){
$hex = '';
for ($i=0; $i<strlen($string); $i++){
$ord = ord($string[$i]);
$hexCode = dechex($ord);
$hex .= substr('0'.$hexCode, -2);
}
return strToUpper($hex);
}
private function hexToStr($hex){
$string='';
for ($i=0; $i < strlen($hex)-1; $i+=2){
$string .= chr(hexdec($hex[$i].$hex[$i+1]));
}
return $string;
}
}
$EasyCrypt3Des = new EasyCrypt3Des();
$code = $EasyCrypt3Des->encrypt('12345678');
echo $code .'
';Dptm/>';
exit;