1.PHP[DesCryptUtil2.php]
<?php
/**
* Created by PhpStorm.
* User: Alvin Tang
* Date: 2017/6/2
* Time: 10:03
* Author: 442353346@qq.com
* Desc: 16进制DES加密和解密
*/
class DesCryptUtil2{
//密钥8位
public $key = ‘|$|@d!@&‘;
/**
* 构造函数
* DesCryptUtil2 constructor.
* @param string $key
*/
function __construct($key = ‘‘){
$this->key = empty($key) ? $this->key : $key;
}
/**
* @desc 加密返回十六进制字符串
* @param string $str
* @return string
*/
public function encrypt($str) {
$size = mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC);
$str = $this->pkcs5Pad($str, $size);
return strtolower(bin2hex( mcrypt_encrypt(MCRYPT_DES, $this->key, $str, MCRYPT_MODE_CBC, $this->key)));
}
/**
* @desc 解密
* @param string $str
* @return string
*/
public function decrypt($str) {
$strBin = $this->hex2bin(strtolower($str));
$str = mcrypt_decrypt(MCRYPT_DES, $this->key, $strBin, MCRYPT_MODE_CBC, $this->key);
$str = $this->pkcs5Unpad($str);
return $str;
}
/**
* @param $hexData
* @return string
*/
public function hex2bin($hexData) {
$binData = ‘‘;
for($i = 0; $i < strlen ($hexData ); $i += 2) {
$binData .= chr(hexdec(substr($hexData, $i, 2)));
}
return $binData;
}
/**
* @param $text
* @param $blocksize
* @return string
*/
public function pkcs5Pad($text, $blocksize) {
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
/**
* @param $text
* @return bool|string
*/
public function pkcs5Unpad($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);
}
}
?>
2.JAVA[DES.java]
package me.daei.soundmeter;
/**
* Created by Administrator on 2017/6/2.
*/
import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.SecretKey;
import android.util.Base64;
public class DES {
/**
* DES 加密
* @param message
* @param key
* @return
* @throws Exception
*/
public static String encrypt(String message, String key) throws Exception {
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));
cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
//return encodeBase64(cipher.doFinal(message.getBytes("UTF-8")));
return toHexString(cipher.doFinal(message.getBytes("UTF-8")));
}
/**
* DES解密
* @param message
* @param key
* @return
* @throws Exception
*/
public static String decrypt(String message, String key) throws Exception {
//byte[] bytesrc = decodeBase64(message);
byte[] bytesrc = convertHexString(message);
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));
cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
byte[] retByte = cipher.doFinal(bytesrc);
return new String(retByte);
}
/**
* 16进制字符串转为为字节数组
* @param ss
* @return
*/
public static byte[] convertHexString(String ss) {
byte digest[] = new byte[ss.length() / 2];
for (int i = 0; i < digest.length; i++) {
String byteString = ss.substring(2 * i, 2 * i + 2);
int byteValue = Integer.parseInt(byteString, 16);
digest[i] = (byte) byteValue;
}
return digest;
}
/**
* 转化为16进制字符串
* @param b
* @return
*/
public static String toHexString(byte b[]) {
StringBuffer hexString = new StringBuffer();
for (int i = 0; i < b.length; i++) {
String plainText = Integer.toHexString(0xff & b[i]);
if (plainText.length() < 2)
plainText = "0" + plainText;
hexString.append(plainText);
}
return hexString.toString();
}
/**
* BASE64编码
* @param b
* @return
*/
public static String encodeBase64(byte[] b) {
return Base64.encodeToString(b, Base64.DEFAULT);
}
/**
* BASE64解码
* @param base64String
* @return
*/
public static byte[] decodeBase64(String base64String) {
return Base64.decode(base64String, Base64.DEFAULT);
}
}
3.IOS[Object-C]
//
// ViewController.m
// testObjectC
//
// Created by TangPing on 2017/12/22.
// Copyright © 2017年 TangPing. All rights reserved.
//
#import "ViewController.h"
#import <CommonCrypto/CommonDigest.h>
#import <CommonCrypto/CommonCryptor.h>
//如果需要base64请加载头文件
//#import "Base64.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSString* key = @"|$%@d!@y";
NSString* test = @"123456";
NSString* result = [self encryptUseDES:test key:key];
NSLog(@"%@", result);
}
//与下面的加密并未实现同步，如果有需要可自行实现十六进制转Byte算法
/*
- (NSString*) decryptUseDES:(NSString*)cipherText key:(NSString*)key {
// 利用 GTMBase64 解碼 Base64 字串
NSData* cipherData = [cipherText base64DecodedData];//如果想与加密同步，请自行实现十六进制转Byte算法
unsigned char buffer[1024]; //注意空间大小
memset(buffer, 0, sizeof(char));
size_t numBytesDecrypted = 0;
// IV 偏移量不需使用
CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt,
kCCAlgorithmDES,
kCCOptionPKCS7Padding,//kCCOptionPKCS7Padding | kCCOptionECBMode,
[key UTF8String],
kCCKeySizeDES,
[key UTF8String],//nil,
[cipherData bytes],
[cipherData length],
buffer,
1024, //注意空间大小
&numBytesDecrypted);
NSString* plainText = nil;
if (cryptStatus == kCCSuccess) {
NSData* data = [NSData dataWithBytes:buffer length:(NSUInteger)numBytesDecrypted];
plainText = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
return plainText;
}
*/
- (NSString *) encryptUseDES:(NSString *)clearText key:(NSString *)key
{
NSInteger bufferSize = 1024;
NSData *data = [clearText dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
unsigned char buffer[bufferSize]; //注意空间大小
memset(buffer, 0, sizeof(char));
size_t numBytesEncrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
kCCAlgorithmDES,
kCCOptionPKCS7Padding,//kCCOptionPKCS7Padding | kCCOptionECBMode,
[key UTF8String],
kCCKeySizeDES,
[key UTF8String],//nil,
[data bytes],
[data length],
buffer,
bufferSize, //注意空间大小
&numBytesEncrypted);
NSString* plainText = nil;
if (cryptStatus == kCCSuccess) {
NSData *dataTemp = [NSData dataWithBytes:buffer length:(NSUInteger)numBytesEncrypted];
//转化为byte
Byte *byte = (Byte *)[dataTemp bytes];
NSUInteger len = [dataTemp length];
plainText = [self toHexString:byte size:len];
//plainText = [dataTemp base64EncodedString];
}else{
//NSLog(@"DES加密失败");
}
return plainText;
}
- (NSString *) toHexString:(Byte*)byte size:(NSInteger)size {
NSMutableArray* tempArray = [NSMutableArray arrayWithCapacity:size];
for(int i =0;i<size;i++){
NSString* newHexStr = [NSString stringWithFormat:@"%x",byte[i]&0xff];
if(newHexStr.length < 2){
newHexStr = [@"0" stringByAppendingString:newHexStr];
}
[tempArray addObject:newHexStr];
}
return [tempArray componentsJoinedByString:@""];
}
@end
Base64.h
//
// Base64.h
// testObjectC
//
// Created by TangPing on 2018/1/5.
// Copyright © 2018年 TangPing. All rights reserved.
//
#ifndef Base64_h
#define Base64_h
#endif /* Base64_h */
#import <Foundation/Foundation.h>
@interface NSData (Base64)
+ (NSData *)dataWithBase64EncodedString:(NSString *)string;
- (NSString *)base64EncodedStringWithWrapWidth:(NSUInteger)wrapWidth;
- (NSString *)base64EncodedString;
@end
@interface NSString (Base64)
+ (NSString *)stringWithBase64EncodedString:(NSString *)string;
- (NSString *)base64EncodedStringWithWrapWidth:(NSUInteger)wrapWidth;
- (NSString *)base64EncodedString;
- (NSString *)base64DecodedString;
- (NSData *)base64DecodedData;
@end
Base64.m
#import "Base64.h"
#pragma GCC diagnostic ignored "-Wselector"
#import <Availability.h>
#if !__has_feature(objc_arc)
#error This library requires automatic reference counting
#endif
@implementation NSData (Base64)
+ (NSData *)dataWithBase64EncodedString:(NSString *)string
{
if (![string length]) return nil;
NSData *decoded = nil;
#if __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_9 || __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_7_0
if (![NSData instancesRespondToSelector:@selector(initWithBase64EncodedString:options:)])
{
decoded = [[self alloc] initWithBase64Encoding:[string stringByReplacingOccurrencesOfString:@"[^A-Za-z0-9+/=]" withString:@"" options:NSRegularExpressionSearch range:NSMakeRange(0, [string length])]];
}
else
#endif
{
decoded = [[self alloc] initWithBase64EncodedString:string options:NSDataBase64DecodingIgnoreUnknownCharacters];
}
return [decoded length]? decoded: nil;
}
- (NSString *)base64EncodedStringWithWrapWidth:(NSUInteger)wrapWidth
{
if (![self length]) return nil;
NSString *encoded = nil;
#if __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_9 || __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_7_0
if (![NSData instancesRespondToSelector:@selector(base64EncodedStringWithOptions:)])
{
//encoded = [self base64Encoding];
encoded = [self base64EncodedString];
}
else
#endif
{
switch (wrapWidth)
{
case 64:
{
return [self base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
}
case 76:
{
return [self base64EncodedStringWithOptions:NSDataBase64Encoding76CharacterLineLength];
}
default:
{
encoded = [self base64EncodedStringWithOptions:(NSDataBase64EncodingOptions)0];
}
}
}
if (!wrapWidth || wrapWidth >= [encoded length])
{
return encoded;
}
wrapWidth = (wrapWidth / 4) * 4;
NSMutableString *result = [NSMutableString string];
for (NSUInteger i = 0; i < [encoded length]; i+= wrapWidth)
{
if (i + wrapWidth >= [encoded length])
{
[result appendString:[encoded substringFromIndex:i]];
break;
}
[result appendString:[encoded substringWithRange:NSMakeRange(i, wrapWidth)]];
[result appendString:@"\r\n"];
}
return result;
}
- (NSString *)base64EncodedString
{
return [self base64EncodedStringWithWrapWidth:0];
}
@end
@implementation NSString (Base64)
+ (NSString *)stringWithBase64EncodedString:(NSString *)string
{
NSData *data = [NSData dataWithBase64EncodedString:string];
if (data)
{
return [[self alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
return nil;
}
- (NSString *)base64EncodedStringWithWrapWidth:(NSUInteger)wrapWidth
{
NSData *data = [self dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
return [data base64EncodedStringWithWrapWidth:wrapWidth];
}
- (NSString *)base64EncodedString
{
NSData *data = [self dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
return [data base64EncodedString];
}
- (NSString *)base64DecodedString
{
return [NSString stringWithBase64EncodedString:self];
}
- (NSData *)base64DecodedData
{
return [NSData dataWithBase64EncodedString:self];
}
@end
原文地址：http://tangping.51baocuo.com/?p=176
PHP、JAVA、IOS(OC)实现DES(DES/CBC/PKCS5Padding)加解密