php、java、android、ios通用的3des方法(推荐)

php服务器，java服务器，android，ios开发兼容的3des加密解密，

php

<?phpclass DES3 {	var $key = "my.oschina.net/penngo?#@";	var $iv = "01234567";	function encrypt($input){		$size = mcrypt_get_block_size(MCRYPT_3DES,MCRYPT_MODE_CBC);		$input = $this->pkcs5_pad($input, $size);		$key = str_pad($this->key,24,'0');		$td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_CBC, '');		if( $this->iv == '' )		{			$iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);		}		else		{			$iv = $this->iv;		}		@mcrypt_generic_init($td, $key, $iv);		$data = mcrypt_generic($td, $input);		mcrypt_generic_deinit($td);		mcrypt_module_close($td);		$data = base64_encode($data);		return $data;	}	function decrypt($encrypted){		$encrypted = base64_decode($encrypted);		$key = str_pad($this->key,24,'0');		$td = mcrypt_module_open(MCRYPT_3DES,'',MCRYPT_MODE_CBC,'');		if( $this->iv == '' )		{			$iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);		}		else		{			$iv = $this->iv;		}		$ks = mcrypt_enc_get_key_size($td);		@mcrypt_generic_init($td, $key, $iv);		$decrypted = mdecrypt_generic($td, $encrypted);		mcrypt_generic_deinit($td);		mcrypt_module_close($td);		$y=$this->pkcs5_unpad($decrypted);		return $y;	}	function pkcs5_pad ($text, $blocksize) {		$pad = $blocksize - (strlen($text) % $blocksize);		return $text . str_repeat(chr($pad), $pad);	}	function pkcs5_unpad($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 * $pad);	}	function PaddingPKCS7($data) {		$block_size = mcrypt_get_block_size(MCRYPT_3DES, MCRYPT_MODE_CBC);		$padding_char = $block_size - (strlen($data) % $block_size);		$data .= str_repeat(chr($padding_char),$padding_char);		return $data;	}}$des = new DES3();echo $ret = $des->encrypt("来自http://jb51.net的博客") . "/n";echo $des->decrypt($ret) . "/n";

 java(android)

import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.OutputStream;import java.io.UnsupportedEncodingException;import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec;     /**  * 3DES加密工具类  */ public class DES3 {    // 密钥    private final static String secretKey = "my.oschina.net/penngo?#@" ;     // 向量    private final static String iv = "01234567" ;    // 加解密统一使用的编码方式    private final static String encoding = "utf-8" ;        /**    * 3DES加密    *    * @param plainText 普通文本    * @return    * @throws Exception    */    public static String encode(String plainText) throws Exception {      Key deskey = null ;      DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());      SecretKeyFactory keyfactory = SecretKeyFactory.getInstance( "desede" );      deskey = keyfactory.generateSecret(spec);          Cipher cipher = Cipher.getInstance( "desede/CBC/PKCS5Padding" );      IvParameterSpec ips = new IvParameterSpec(iv.getBytes());      cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);      byte [] encryptData = cipher.doFinal(plainText.getBytes(encoding));      return Base64.encode(encryptData);    }        /**    * 3DES解密    *    * @param encryptText 加密文本    * @return    * @throws Exception    */    public static String decode(String encryptText) throws Exception {      Key deskey = null ;      DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());       SecretKeyFactory keyfactory = SecretKeyFactory.getInstance( "desede" );      deskey = keyfactory.generateSecret(spec);      Cipher cipher = Cipher.getInstance( "desede/CBC/PKCS5Padding" );      IvParameterSpec ips = new IvParameterSpec(iv.getBytes());      cipher.init(Cipher.DECRYPT_MODE, deskey, ips);          byte [] decryptData = cipher.doFinal(Base64.decode(encryptText));          return new String(decryptData, encoding);    }     	public static String padding(String str) {		byte[] oldByteArray;		try {			oldByteArray = str.getBytes("UTF8");			int numberToPad = 8 - oldByteArray.length % 8;			byte[] newByteArray = new byte[oldByteArray.length + numberToPad];			System.arraycopy(oldByteArray, 0, newByteArray, 0,					oldByteArray.length);			for (int i = oldByteArray.length; i < newByteArray.length; ++i) {				newByteArray[i] = 0;			}			return new String(newByteArray, "UTF8");		} catch (UnsupportedEncodingException e) {			System.out.println("Crypter.padding UnsupportedEncodingException");		}		return null;	}		/** 	 * Base64编码工具类 	 * 	 */ 	public static class Base64 { 	   private static final char [] legalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" .toCharArray(); 	    	   public static String encode( byte [] data) { 	     int start = 0 ; 	     int len = data.length; 	     StringBuffer buf = new StringBuffer(data.length * 3 / 2 ); 	    	     int end = len - 3 ; 	     int i = start; 	     int n = 0 ; 	    	     while (i <= end) { 	       int d = (((( int ) data[i]) & 0x0ff ) << 16 ) | (((( int ) data[i + 1 ]) & 0x0ff ) << 8 ) | ((( int ) data[i + 2 ]) & 0x0ff ); 	    	       buf.append(legalChars[(d >> 18 ) & 63 ]); 	       buf.append(legalChars[(d >> 12 ) & 63 ]); 	       buf.append(legalChars[(d >> 6 ) & 63 ]); 	       buf.append(legalChars[d & 63 ]); 	    	       i += 3 ; 	    	       if (n++ >= 14 ) { 	         n = 0 ; 	         buf.append( " " ); 	       } 	     } 	    	     if (i == start + len - 2 ) { 	       int d = (((( int ) data[i]) & 0x0ff ) << 16 ) | (((( int ) data[i + 1 ]) & 255 ) << 8 ); 	    	       buf.append(legalChars[(d >> 18 ) & 63 ]); 	       buf.append(legalChars[(d >> 12 ) & 63 ]); 	       buf.append(legalChars[(d >> 6 ) & 63 ]); 	       buf.append( "=" ); 	     } else if (i == start + len - 1 ) { 	       int d = ((( int ) data[i]) & 0x0ff ) << 16 ; 	    	       buf.append(legalChars[(d >> 18 ) & 63 ]); 	       buf.append(legalChars[(d >> 12 ) & 63 ]); 	       buf.append( "==" ); 	     } 	    	     return buf.toString(); 	   } 	    	   private static int decode( char c) { 	     if (c >= 'A' && c <= 'Z' ) 	       return (( int ) c) - 65 ; 	     else if (c >= 'a' && c <= 'z' ) 	       return (( int ) c) - 97 + 26 ; 	     else if (c >= '0' && c <= '9' ) 	       return (( int ) c) - 48 + 26 + 26 ; 	     else 	       switch (c) { 	       case '+' : 	         return 62 ; 	       case '/' : 	         return 63 ; 	       case '=' : 	         return 0 ; 	       default : 	         throw new RuntimeException( "unexpected code: " + c); 	       } 	   } 	    	   /** 	   * Decodes the given Base64 encoded String to a new byte array. The byte array holding the decoded data is returned. 	   */ 	    	   public static byte [] decode(String s) { 	    	     ByteArrayOutputStream bos = new ByteArrayOutputStream(); 	     try { 	       decode(s, bos); 	     } catch (IOException e) { 	       throw new RuntimeException(); 	     } 	     byte [] decodedBytes = bos.toByteArray(); 	     try { 	       bos.close(); 	       bos = null ; 	     } catch (IOException ex) { 	       System.err.println( "Error while decoding BASE64: " + ex.toString()); 	     } 	     return decodedBytes; 	   } 	    	   private static void decode(String s, OutputStream os) throws IOException { 	     int i = 0 ; 	    	     int len = s.length(); 	    	     while ( true ) { 	       while (i < len && s.charAt(i) <= ' ' ) 	         i++; 	    	       if (i == len) 	         break ; 	    	       int tri = (decode(s.charAt(i)) << 18 ) + (decode(s.charAt(i + 1 )) << 12 ) + (decode(s.charAt(i + 2 )) << 6 ) + (decode(s.charAt(i + 3 ))); 	    	       os.write((tri >> 16 ) & 255 ); 	       if (s.charAt(i + 2 ) == '=' ) 	         break ; 	       os.write((tri >> 8 ) & 255 ); 	       if (s.charAt(i + 3 ) == '=' ) 	         break ; 	       os.write(tri & 255 ); 	    	       i += 4 ; 	     } 	   } 	}       public static void main(String[] args) throws Exception{  	 String plainText = "来自http://jb51.net的博客";  	 String encryptText = DES3.encode(plainText);  	 System.out.println(encryptText);  	 System.out.println(DES3.decode(encryptText));  	    }}