php 3DES加密如何兼容Java

Java源码：

<code>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"; //定义 加密算法,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, 0x22, 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 = "This is a 3DES test. 测试";                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)));    }}</code>

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回复内容：

Java源码：

<code>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"; //定义 加密算法,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.addProv<a style="color:transparent">本@文来源gao($daima.com搞@代@#码(网5</a><strong>搞gaodaima代码</strong>ider(new com.sun.crypto.provider.SunJCE());        final byte[] keyBytes = {0x11, 0x22, 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 = "This is a 3DES test. 测试";                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)));    }}</code>

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已解决 自问自答

<code>class EasyCrypt3Des {    private $_key = "helloworld";     public function __construct($key=null) {        if($key !== null)            $this->_key = $key;    }    public function encrypt($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;    }}</code>

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