I want to write an encryption class in Java using PHP, but I saw this way of writing Java and it gave me a headache. Totally illogical. I found a complete class and wanted to refer to it. After many experiments, I could not translate the encryption class I uploaded into PHP. Please help me. Thanks.
/**
3Des help class
*/
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
}
}
The above is the java class I need to convert into PHP,
Attached is the following reference article
/q/10...
The following is the PHP code I wrote after reference.
<?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;
}
}
The problem has been solved, please refer to the previous article:
1. The encrypted characters are not converted into characters, so they cannot be decrypted. One step is missing.
2. Refer to the article link I posted, the PHP class is completely universal. You can ignore the code I posted before, I will compile another correct one.
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"; //Define encryption algorithm, available DES, DESede, Blowfish
}
The above code is completely taken from /q/10...
The following is the PHP code.
<?php
class EasyCrypt3Des {
}
$EasyCrypt3Des = new EasyCrypt3Des();
$code = $EasyCrypt3Des->encrypt('12345678');
echo $code .'<br/>';
echo $EasyCrypt3Des->decrypt( $code);
exit;
Mainly lies in character conversion.