php,java,android,ios 에서 통용 되 는 3des 방법(추천)

48805 단어 자바3des
php 서버,자바 서버,android,ios 개발 호 환 3des 암호 화 복호화,
php

<?php
class 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("  http://jb51.net   ") . "
"; echo $des->decrypt($ret) . "
";
 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      
 */ 
public class DES3 { 
   //    
   private final static String secretKey = "my.oschina.net/penngo?#@" ;  
   //    
   private final static String iv = "01234567" ; 
   //              
   private final static String encoding = "utf-8" ; 
    
   /** 
   * 3DES   
   * 
   * @param plainText      
   * @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   
   * 
   * @param encryptText      
   * @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      
	 * 
	 */ 
	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 = "  http://jb51.net   ";
  	 String encryptText = DES3.encode(plainText);
  	 System.out.println(encryptText);
  	 System.out.println(DES3.decode(encryptText));

  	 
   }
}
 Ojbective-C(ios)

// 
// DES3Util.h 
// 
#import <Foundation/Foundation.h> 
@interface DES3Util : NSObject { 
} 
//      
+ (NSString*)encrypt:(NSString*)plainText; 
//      
+ (NSString*)decrypt:(NSString*)encryptText; 
@end 


// 
// DES3Util.m 
// 
    
#import "DES3Util.h" 
#import <CommonCrypto/CommonCryptor.h> 
#import "GTMBase64.h" 
#define gkey      @"my.oschina.net/penngo?#@" 
#define gIv       @"01234567" 
    
@implementation DES3Util 
//      
+ (NSString*)encrypt:(NSString*)plainText { 
   NSData* data = [plainText dataUsingEncoding:NSUTF8StringEncoding]; 
   size_t plainTextBufferSize = [data length]; 
   const void *vplainText = (const void *)[data bytes]; 
      
   CCCryptorStatus ccStatus; 
   uint8_t *bufferPtr = NULL; 
   size_t bufferPtrSize = 0; 
   size_t movedBytes = 0; 
      
   bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); 
   bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t)); 
   memset((void *)bufferPtr, 0x0, bufferPtrSize); 
      
   const void *vkey = (const void *) [gkey UTF8String]; 
   const void *vinitVec = (const void *) [gIv UTF8String]; 
      
   ccStatus = CCCrypt(kCCEncrypt, 
            kCCAlgorithm3DES, 
            kCCOptionPKCS7Padding, 
            vkey, 
            kCCKeySize3DES, 
            vinitVec, 
            vplainText, 
            plainTextBufferSize, 
            (void *)bufferPtr, 
            bufferPtrSize, 
            &movedBytes); 
      
   NSData *myData = [NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes]; 
   NSString *result = [GTMBase64 stringByEncodingData:myData]; 
   return result; 
} 
    
//      
+ (NSString*)decrypt:(NSString*)encryptText { 
   NSData *encryptData = [GTMBase64 decodeData:[encryptText dataUsingEncoding:NSUTF8StringEncoding]]; 
   size_t plainTextBufferSize = [encryptData length]; 
   const void *vplainText = [encryptData bytes]; 
      
   CCCryptorStatus ccStatus; 
   uint8_t *bufferPtr = NULL; 
   size_t bufferPtrSize = 0; 
   size_t movedBytes = 0; 
   bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); 
   bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t)); 
   memset((void *)bufferPtr, 0x0, bufferPtrSize);   
   const void *vkey = (const void *) [gkey UTF8String]; 
   const void *vinitVec = (const void *) [gIv UTF8String]; 
      
   ccStatus = CCCrypt(kCCDecrypt, 
            kCCAlgorithm3DES, 
            kCCOptionPKCS7Padding, 
            vkey, 
            kCCKeySize3DES, 
            vinitVec, 
            vplainText, 
            plainTextBufferSize, 
            (void *)bufferPtr, 
            bufferPtrSize, 
            &movedBytes); 
      
   NSString *result = [[[NSString alloc] initWithData:[NSData dataWithBytes:(const void *)bufferPtr  
                 length:(NSUInteger)movedBytes] encoding:NSUTF8StringEncoding] autorelease]; 
   return result; 
} 
    
@end






//
// GTMBase64.h
//
// Copyright 2006-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

// David Lee make changes:
// Remove dependency on GTMDefines.h
// add some string to string function

#import <Foundation/Foundation.h>

// GTMBase64
//
/// Helper for handling Base64 and WebSafeBase64 encodings
//
/// The webSafe methods use different character set and also the results aren't
/// always padded to a multiple of 4 characters. This is done so the resulting
/// data can be used in urls and url query arguments without needing any
/// encoding. You must use the webSafe* methods together, the data does not
/// interop with the RFC methods.
//
@interface GTMBase64 : NSObject

//
// Standard Base64 (RFC) handling
//

// encodeData:
//
/// Base64 encodes contents of the NSData object.
//
/// Returns:
///  A new autoreleased NSData with the encoded payload. nil for any error.
//
+(NSData *)encodeData:(NSData *)data;

// decodeData:
//
/// Base64 decodes contents of the NSData object.
//
/// Returns:
///  A new autoreleased NSData with the decoded payload. nil for any error.
//
+(NSData *)decodeData:(NSData *)data;

// encodeBytes:length:
//
/// Base64 encodes the data pointed at by |bytes|.
//
/// Returns:
///  A new autoreleased NSData with the encoded payload. nil for any error.
//
+(NSData *)encodeBytes:(const void *)bytes length:(NSUInteger)length;

// decodeBytes:length:
//
/// Base64 decodes the data pointed at by |bytes|.
//
/// Returns:
///  A new autoreleased NSData with the encoded payload. nil for any error.
//
+(NSData *)decodeBytes:(const void *)bytes length:(NSUInteger)length;

// stringByEncodingData:
//
/// Base64 encodes contents of the NSData object.
//
/// Returns:
///  A new autoreleased NSString with the encoded payload. nil for any error.
//
+(NSString *)stringByEncodingData:(NSData *)data;

// stringByEncodingBytes:length:
//
/// Base64 encodes the data pointed at by |bytes|.
//
/// Returns:
///  A new autoreleased NSString with the encoded payload. nil for any error.
//
+(NSString *)stringByEncodingBytes:(const void *)bytes length:(NSUInteger)length;

// decodeString:
//
/// Base64 decodes contents of the NSString.
//
/// Returns:
///  A new autoreleased NSData with the decoded payload. nil for any error.
//
+(NSData *)decodeString:(NSString *)string;

//
// Modified Base64 encoding so the results can go onto urls.
//
// The changes are in the characters generated and also allows the result to
// not be padded to a multiple of 4.
// Must use the matching call to encode/decode, won't interop with the
// RFC versions.
//

// webSafeEncodeData:padded:
//
/// WebSafe Base64 encodes contents of the NSData object. If |padded| is YES
/// then padding characters are added so the result length is a multiple of 4.
//
/// Returns:
///  A new autoreleased NSData with the encoded payload. nil for any error.
//
+(NSData *)webSafeEncodeData:(NSData *)data
           padded:(BOOL)padded;

// webSafeDecodeData:
//
/// WebSafe Base64 decodes contents of the NSData object.
//
/// Returns:
///  A new autoreleased NSData with the decoded payload. nil for any error.
//
+(NSData *)webSafeDecodeData:(NSData *)data;

// webSafeEncodeBytes:length:padded:
//
/// WebSafe Base64 encodes the data pointed at by |bytes|. If |padded| is YES
/// then padding characters are added so the result length is a multiple of 4.
//
/// Returns:
///  A new autoreleased NSData with the encoded payload. nil for any error.
//
+(NSData *)webSafeEncodeBytes:(const void *)bytes
            length:(NSUInteger)length
            padded:(BOOL)padded;

// webSafeDecodeBytes:length:
//
/// WebSafe Base64 decodes the data pointed at by |bytes|.
//
/// Returns:
///  A new autoreleased NSData with the encoded payload. nil for any error.
//
+(NSData *)webSafeDecodeBytes:(const void *)bytes length:(NSUInteger)length;

// stringByWebSafeEncodingData:padded:
//
/// WebSafe Base64 encodes contents of the NSData object. If |padded| is YES
/// then padding characters are added so the result length is a multiple of 4.
//
/// Returns:
///  A new autoreleased NSString with the encoded payload. nil for any error.
//
+(NSString *)stringByWebSafeEncodingData:(NSData *)data
                 padded:(BOOL)padded;

// stringByWebSafeEncodingBytes:length:padded:
//
/// WebSafe Base64 encodes the data pointed at by |bytes|. If |padded| is YES
/// then padding characters are added so the result length is a multiple of 4.
//
/// Returns:
///  A new autoreleased NSString with the encoded payload. nil for any error.
//
+(NSString *)stringByWebSafeEncodingBytes:(const void *)bytes
                  length:(NSUInteger)length
                  padded:(BOOL)padded;

// webSafeDecodeString:
//
/// WebSafe Base64 decodes contents of the NSString.
//
/// Returns:
///  A new autoreleased NSData with the decoded payload. nil for any error.
//
+(NSData *)webSafeDecodeString:(NSString *)string;

// David Lee new added function
/// Returns:
// A new autoreleased NSString with Base64 encoded NSString
+(NSString *)stringByBase64String:(NSString *)base64String;

// David Lee new added function
/// Returns:
// A new autoreleased Base64 encoded NSString with NSString
+(NSString *)base64StringBystring:(NSString *)string;
@end


//
// GTMBase64.m
//
// Copyright 2006-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
// David Lee make changes:
// Remove dependency on GTMDefines.h
// add some string to string function

#import "GTMBase64.h"

static const char *kBase64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static const char *kWebSafeBase64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
static const char kBase64PaddingChar = '=';
static const char kBase64InvalidChar = 99;

static const char kBase64DecodeChars[] = {
  // This array was generated by the following code:
  // #include <sys/time.h>
  // #include <stdlib.h>
  // #include <string.h>
  // main()
  // {
  //  static const char Base64[] =
  //   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  //  char *pos;
  //  int idx, i, j;
  //  printf("  ");
  //  for (i = 0; i < 255; i += 8) {
  //   for (j = i; j < i + 8; j++) {
  //    pos = strchr(Base64, j);
  //    if ((pos == NULL) || (j == 0))
  //     idx = 99;
  //    else
  //     idx = pos - Base64;
  //    if (idx == 99)
  //     printf(" %2d,   ", idx);
  //    else
  //     printf(" %2d/*%c*/,", idx, j);
  //   }
  //   printf("
"); // } // } 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 62/*+*/, 99, 99, 99, 63/*/ */, 52/*0*/, 53/*1*/, 54/*2*/, 55/*3*/, 56/*4*/, 57/*5*/, 58/*6*/, 59/*7*/, 60/*8*/, 61/*9*/, 99, 99, 99, 99, 99, 99, 99, 0/*A*/, 1/*B*/, 2/*C*/, 3/*D*/, 4/*E*/, 5/*F*/, 6/*G*/, 7/*H*/, 8/*I*/, 9/*J*/, 10/*K*/, 11/*L*/, 12/*M*/, 13/*N*/, 14/*O*/, 15/*P*/, 16/*Q*/, 17/*R*/, 18/*S*/, 19/*T*/, 20/*U*/, 21/*V*/, 22/*W*/, 23/*X*/, 24/*Y*/, 25/*Z*/, 99, 99, 99, 99, 99, 99, 26/*a*/, 27/*b*/, 28/*c*/, 29/*d*/, 30/*e*/, 31/*f*/, 32/*g*/, 33/*h*/, 34/*i*/, 35/*j*/, 36/*k*/, 37/*l*/, 38/*m*/, 39/*n*/, 40/*o*/, 41/*p*/, 42/*q*/, 43/*r*/, 44/*s*/, 45/*t*/, 46/*u*/, 47/*v*/, 48/*w*/, 49/*x*/, 50/*y*/, 51/*z*/, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99 }; static const char kWebSafeBase64DecodeChars[] = { // This array was generated by the following code: // #include <sys/time.h> // #include <stdlib.h> // #include <string.h> // main() // { // static const char Base64[] = // "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; // char *pos; // int idx, i, j; // printf(" "); // for (i = 0; i < 255; i += 8) { // for (j = i; j < i + 8; j++) { // pos = strchr(Base64, j); // if ((pos == NULL) || (j == 0)) // idx = 99; // else // idx = pos - Base64; // if (idx == 99) // printf(" %2d, ", idx); // else // printf(" %2d/*%c*/,", idx, j); // } // printf("
"); // } // } 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 62/*-*/, 99, 99, 52/*0*/, 53/*1*/, 54/*2*/, 55/*3*/, 56/*4*/, 57/*5*/, 58/*6*/, 59/*7*/, 60/*8*/, 61/*9*/, 99, 99, 99, 99, 99, 99, 99, 0/*A*/, 1/*B*/, 2/*C*/, 3/*D*/, 4/*E*/, 5/*F*/, 6/*G*/, 7/*H*/, 8/*I*/, 9/*J*/, 10/*K*/, 11/*L*/, 12/*M*/, 13/*N*/, 14/*O*/, 15/*P*/, 16/*Q*/, 17/*R*/, 18/*S*/, 19/*T*/, 20/*U*/, 21/*V*/, 22/*W*/, 23/*X*/, 24/*Y*/, 25/*Z*/, 99, 99, 99, 99, 63/*_*/, 99, 26/*a*/, 27/*b*/, 28/*c*/, 29/*d*/, 30/*e*/, 31/*f*/, 32/*g*/, 33/*h*/, 34/*i*/, 35/*j*/, 36/*k*/, 37/*l*/, 38/*m*/, 39/*n*/, 40/*o*/, 41/*p*/, 42/*q*/, 43/*r*/, 44/*s*/, 45/*t*/, 46/*u*/, 47/*v*/, 48/*w*/, 49/*x*/, 50/*y*/, 51/*z*/, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99 }; // Tests a character to see if it's a whitespace character. // // Returns: // YES if the character is a whitespace character. // NO if the character is not a whitespace character. // BOOL IsSpace(unsigned char c) { // we use our own mapping here because we don't want anything w/ locale // support. static BOOL kSpaces[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, // 0-9 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 10-19 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20-29 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, // 30-39 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40-49 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 50-59 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60-69 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 70-79 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 80-89 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 90-99 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 100-109 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 110-119 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 120-129 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 130-139 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 140-149 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 150-159 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 160-169 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 170-179 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 180-189 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 190-199 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 200-209 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 210-219 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 220-229 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 230-239 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 240-249 0, 0, 0, 0, 0, 1, // 250-255 }; return kSpaces[c]; } // Calculate how long the data will be once it's base64 encoded. // // Returns: // The guessed encoded length for a source length // NSUInteger CalcEncodedLength(NSUInteger srcLen, BOOL padded) { NSUInteger intermediate_result = 8 * srcLen + 5; NSUInteger len = intermediate_result / 6; if (padded) { len = ((len + 3) / 4) * 4; } return len; } // Tries to calculate how long the data will be once it's base64 decoded. // Unlike the above, this is always an upperbound, since the source data // could have spaces and might end with the padding characters on them. // // Returns: // The guessed decoded length for a source length // NSUInteger GuessDecodedLength(NSUInteger srcLen) { return (srcLen + 3) / 4 * 3; } @interface GTMBase64 (PrivateMethods) +(NSData *)baseEncode:(const void *)bytes length:(NSUInteger)length charset:(const char *)charset padded:(BOOL)padded; +(NSData *)baseDecode:(const void *)bytes length:(NSUInteger)length charset:(const char*)charset requirePadding:(BOOL)requirePadding; +(NSUInteger)baseEncode:(const char *)srcBytes srcLen:(NSUInteger)srcLen destBytes:(char *)destBytes destLen:(NSUInteger)destLen charset:(const char *)charset padded:(BOOL)padded; +(NSUInteger)baseDecode:(const char *)srcBytes srcLen:(NSUInteger)srcLen destBytes:(char *)destBytes destLen:(NSUInteger)destLen charset:(const char *)charset requirePadding:(BOOL)requirePadding; @end @implementation GTMBase64 // // Standard Base64 (RFC) handling // +(NSData *)encodeData:(NSData *)data { return [self baseEncode:[data bytes] length:[data length] charset:kBase64EncodeChars padded:YES]; } +(NSData *)decodeData:(NSData *)data { return [self baseDecode:[data bytes] length:[data length] charset:kBase64DecodeChars requirePadding:YES]; } +(NSData *)encodeBytes:(const void *)bytes length:(NSUInteger)length { return [self baseEncode:bytes length:length charset:kBase64EncodeChars padded:YES]; } +(NSData *)decodeBytes:(const void *)bytes length:(NSUInteger)length { return [self baseDecode:bytes length:length charset:kBase64DecodeChars requirePadding:YES]; } +(NSString *)stringByEncodingData:(NSData *)data { NSString *result = nil; NSData *converted = [self baseEncode:[data bytes] length:[data length] charset:kBase64EncodeChars padded:YES]; if (converted) { result = [[[NSString alloc] initWithData:converted encoding:NSASCIIStringEncoding] autorelease]; } return result; } +(NSString *)stringByEncodingBytes:(const void *)bytes length:(NSUInteger)length { NSString *result = nil; NSData *converted = [self baseEncode:bytes length:length charset:kBase64EncodeChars padded:YES]; if (converted) { result = [[[NSString alloc] initWithData:converted encoding:NSASCIIStringEncoding] autorelease]; } return result; } +(NSData *)decodeString:(NSString *)string { NSData *result = nil; NSData *data = [string dataUsingEncoding:NSASCIIStringEncoding]; if (data) { result = [self baseDecode:[data bytes] length:[data length] charset:kBase64DecodeChars requirePadding:YES]; } return result; } // // Modified Base64 encoding so the results can go onto urls. // // The changes are in the characters generated and also the result isn't // padded to a multiple of 4. // Must use the matching call to encode/decode, won't interop with the // RFC versions. // +(NSData *)webSafeEncodeData:(NSData *)data padded:(BOOL)padded { return [self baseEncode:[data bytes] length:[data length] charset:kWebSafeBase64EncodeChars padded:padded]; } +(NSData *)webSafeDecodeData:(NSData *)data { return [self baseDecode:[data bytes] length:[data length] charset:kWebSafeBase64DecodeChars requirePadding:NO]; } +(NSData *)webSafeEncodeBytes:(const void *)bytes length:(NSUInteger)length padded:(BOOL)padded { return [self baseEncode:bytes length:length charset:kWebSafeBase64EncodeChars padded:padded]; } +(NSData *)webSafeDecodeBytes:(const void *)bytes length:(NSUInteger)length { return [self baseDecode:bytes length:length charset:kWebSafeBase64DecodeChars requirePadding:NO]; } +(NSString *)stringByWebSafeEncodingData:(NSData *)data padded:(BOOL)padded { NSString *result = nil; NSData *converted = [self baseEncode:[data bytes] length:[data length] charset:kWebSafeBase64EncodeChars padded:padded]; if (converted) { result = [[[NSString alloc] initWithData:converted encoding:NSASCIIStringEncoding] autorelease]; } return result; } +(NSString *)stringByWebSafeEncodingBytes:(const void *)bytes length:(NSUInteger)length padded:(BOOL)padded { NSString *result = nil; NSData *converted = [self baseEncode:bytes length:length charset:kWebSafeBase64EncodeChars padded:padded]; if (converted) { result = [[[NSString alloc] initWithData:converted encoding:NSASCIIStringEncoding] autorelease]; } return result; } +(NSData *)webSafeDecodeString:(NSString *)string { NSData *result = nil; NSData *data = [string dataUsingEncoding:NSASCIIStringEncoding]; if (data) { result = [self baseDecode:[data bytes] length:[data length] charset:kWebSafeBase64DecodeChars requirePadding:NO]; } return result; } // David Lee new added function /// Returns: // A new autoreleased NSString with Base64 encoded NSString +(NSString *)stringByBase64String:(NSString *)base64String { NSString *sourceString = [[[NSString alloc] initWithData:[GTMBase64 decodeData:[base64String dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]] encoding:NSUTF8StringEncoding] autorelease]; return sourceString; } // David Lee new added function /// Returns: // A new autoreleased Base64 encoded NSString with NSString +(NSString *)base64StringBystring:(NSString *)string { NSString *base64String = [[[NSString alloc] initWithData:[GTMBase64 encodeData:[string dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]] encoding:NSUTF8StringEncoding] autorelease]; return base64String; } @end @implementation GTMBase64 (PrivateMethods) // // baseEncode:length:charset:padded: // // Does the common lifting of creating the dest NSData. it creates & sizes the // data for the results. |charset| is the characters to use for the encoding // of the data. |padding| controls if the encoded data should be padded to a // multiple of 4. // // Returns: // an autorelease NSData with the encoded data, nil if any error. // +(NSData *)baseEncode:(const void *)bytes length:(NSUInteger)length charset:(const char *)charset padded:(BOOL)padded { // how big could it be? NSUInteger maxLength = CalcEncodedLength(length, padded); // make space NSMutableData *result = [NSMutableData data]; [result setLength:maxLength]; // do it NSUInteger finalLength = [self baseEncode:bytes srcLen:length destBytes:[result mutableBytes] destLen:[result length] charset:charset padded:padded]; if (finalLength) { NSAssert(finalLength == maxLength, @"how did we calc the length wrong?"); } else { // shouldn't happen, this means we ran out of space result = nil; } return result; } // // baseDecode:length:charset:requirePadding: // // Does the common lifting of creating the dest NSData. it creates & sizes the // data for the results. |charset| is the characters to use for the decoding // of the data. // // Returns: // an autorelease NSData with the decoded data, nil if any error. // // +(NSData *)baseDecode:(const void *)bytes length:(NSUInteger)length charset:(const char *)charset requirePadding:(BOOL)requirePadding { // could try to calculate what it will end up as NSUInteger maxLength = GuessDecodedLength(length); // make space NSMutableData *result = [NSMutableData data]; [result setLength:maxLength]; // do it NSUInteger finalLength = [self baseDecode:bytes srcLen:length destBytes:[result mutableBytes] destLen:[result length] charset:charset requirePadding:requirePadding]; if (finalLength) { if (finalLength != maxLength) { // resize down to how big it was [result setLength:finalLength]; } } else { // either an error in the args, or we ran out of space result = nil; } return result; } // // baseEncode:srcLen:destBytes:destLen:charset:padded: // // Encodes the buffer into the larger. returns the length of the encoded // data, or zero for an error. // |charset| is the characters to use for the encoding // |padded| tells if the result should be padded to a multiple of 4. // // Returns: // the length of the encoded data. zero if any error. // +(NSUInteger)baseEncode:(const char *)srcBytes srcLen:(NSUInteger)srcLen destBytes:(char *)destBytes destLen:(NSUInteger)destLen charset:(const char *)charset padded:(BOOL)padded { if (!srcLen || !destLen || !srcBytes || !destBytes) { return 0; } char *curDest = destBytes; const unsigned char *curSrc = (const unsigned char *)(srcBytes); // Three bytes of data encodes to four characters of cyphertext. // So we can pump through three-byte chunks atomically. while (srcLen > 2) { // space? NSAssert(destLen >= 4, @"our calc for encoded length was wrong"); curDest[0] = charset[curSrc[0] >> 2]; curDest[1] = charset[((curSrc[0] & 0x03) << 4) + (curSrc[1] >> 4)]; curDest[2] = charset[((curSrc[1] & 0x0f) << 2) + (curSrc[2] >> 6)]; curDest[3] = charset[curSrc[2] & 0x3f]; curDest += 4; curSrc += 3; srcLen -= 3; destLen -= 4; } // now deal with the tail (<=2 bytes) switch (srcLen) { case 0: // Nothing left; nothing more to do. break; case 1: // One byte left: this encodes to two characters, and (optionally) // two pad characters to round out the four-character cypherblock. NSAssert(destLen >= 2, @"our calc for encoded length was wrong"); curDest[0] = charset[curSrc[0] >> 2]; curDest[1] = charset[(curSrc[0] & 0x03) << 4]; curDest += 2; destLen -= 2; if (padded) { NSAssert(destLen >= 2, @"our calc for encoded length was wrong"); curDest[0] = kBase64PaddingChar; curDest[1] = kBase64PaddingChar; curDest += 2; } break; case 2: // Two bytes left: this encodes to three characters, and (optionally) // one pad character to round out the four-character cypherblock. NSAssert(destLen >= 3, @"our calc for encoded length was wrong"); curDest[0] = charset[curSrc[0] >> 2]; curDest[1] = charset[((curSrc[0] & 0x03) << 4) + (curSrc[1] >> 4)]; curDest[2] = charset[(curSrc[1] & 0x0f) << 2]; curDest += 3; destLen -= 3; if (padded) { NSAssert(destLen >= 1, @"our calc for encoded length was wrong"); curDest[0] = kBase64PaddingChar; curDest += 1; } break; } // return the length return (curDest - destBytes); } // // baseDecode:srcLen:destBytes:destLen:charset:requirePadding: // // Decodes the buffer into the larger. returns the length of the decoded // data, or zero for an error. // |charset| is the character decoding buffer to use // // Returns: // the length of the encoded data. zero if any error. // +(NSUInteger)baseDecode:(const char *)srcBytes srcLen:(NSUInteger)srcLen destBytes:(char *)destBytes destLen:(NSUInteger)destLen charset:(const char *)charset requirePadding:(BOOL)requirePadding { if (!srcLen || !destLen || !srcBytes || !destBytes) { return 0; } int decode; NSUInteger destIndex = 0; int state = 0; char ch = 0; while (srcLen-- && (ch = *srcBytes++) != 0) { if (IsSpace(ch)) // Skip whitespace continue; if (ch == kBase64PaddingChar) break; decode = charset[(unsigned int)ch]; if (decode == kBase64InvalidChar) return 0; // Four cyphertext characters decode to three bytes. // Therefore we can be in one of four states. switch (state) { case 0: // We're at the beginning of a four-character cyphertext block. // This sets the high six bits of the first byte of the // plaintext block. NSAssert(destIndex < destLen, @"our calc for decoded length was wrong"); destBytes[destIndex] = decode << 2; state = 1; break; case 1: // We're one character into a four-character cyphertext block. // This sets the low two bits of the first plaintext byte, // and the high four bits of the second plaintext byte. NSAssert((destIndex+1) < destLen, @"our calc for decoded length was wrong"); destBytes[destIndex] |= decode >> 4; destBytes[destIndex+1] = (decode & 0x0f) << 4; destIndex++; state = 2; break; case 2: // We're two characters into a four-character cyphertext block. // This sets the low four bits of the second plaintext // byte, and the high two bits of the third plaintext byte. // However, if this is the end of data, and those two // bits are zero, it could be that those two bits are // leftovers from the encoding of data that had a length // of two mod three. NSAssert((destIndex+1) < destLen, @"our calc for decoded length was wrong"); destBytes[destIndex] |= decode >> 2; destBytes[destIndex+1] = (decode & 0x03) << 6; destIndex++; state = 3; break; case 3: // We're at the last character of a four-character cyphertext block. // This sets the low six bits of the third plaintext byte. NSAssert(destIndex < destLen, @"our calc for decoded length was wrong"); destBytes[destIndex] |= decode; destIndex++; state = 0; break; } } // We are done decoding Base-64 chars. Let's see if we ended // on a byte boundary, and/or with erroneous trailing characters. if (ch == kBase64PaddingChar) { // We got a pad char if ((state == 0) || (state == 1)) { return 0; // Invalid '=' in first or second position } if (srcLen == 0) { if (state == 2) { // We run out of input but we still need another '=' return 0; } // Otherwise, we are in state 3 and only need this '=' } else { if (state == 2) { // need another '=' while ((ch = *srcBytes++) && (srcLen-- > 0)) { if (!IsSpace(ch)) break; } if (ch != kBase64PaddingChar) { return 0; } } // state = 1 or 2, check if all remain padding is space while ((ch = *srcBytes++) && (srcLen-- > 0)) { if (!IsSpace(ch)) { return 0; } } } } else { // We ended by seeing the end of the string. if (requirePadding) { // If we require padding, then anything but state 0 is an error. if (state != 0) { return 0; } } else { // Make sure we have no partial bytes lying around. Note that we do not // require trailing '=', so states 2 and 3 are okay too. if (state == 1) { return 0; } } } // If then next piece of output was valid and got written to it means we got a // very carefully crafted input that appeared valid but contains some trailing // bits past the real length, so just toss the thing. if ((destIndex < destLen) && (destBytes[destIndex] != 0)) { return 0; } return destIndex; }
이상 의 phop,자바,안 드 로 이 드,ios 에서 통용 되 는 3des 방법(추천)은 바로 편집장 이 여러분 에 게 공유 하 는 모든 내용 입 니 다.참고 하 실 수 있 고 많은 응원 부 탁 드 리 겠 습 니 다.

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