Maison >développement back-end >tutoriel php >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 stmp="(java.lang.Integer.toHexString(b[n]" if hs='hs+"0"+stmp;' else return hs.touppercase public static void main args security.addprovider com.sun.crypto.provider.sunjce final byte keybytes="{0x11," string szsrc="This is a 3DES test. 测试" system.out.println encoded="encryptMode(keyBytes," szsrc.getbytes new srcbytes="decryptMode(keyBytes,"></b.length></code>
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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 stmp="(java.lang.Integer.toHexString(b[n]" if hs='hs+"0"+stmp;' else return hs.touppercase public static void main args security.addprovider com.sun.crypto.provider.sunjce final byte keybytes="{0x11," string szsrc="This is a 3DES test. 测试" system.out.println encoded="encryptMode(keyBytes," szsrc.getbytes new srcbytes="decryptMode(keyBytes,"></b.length></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; $i<strlen ord dechex .="substr('0'.$hexCode," return strtoupper private function hextostr for strlen></strlen></code>