这个网上的资料真实浩如烟海，但是真正有价值的寥寥可数
自己尝试了1天多，终究还是弄定了。
再次要感谢网上的先辈么。
比以下面这个关于php和java真个实现：
http://my.oschina.net/Jacker/blog/86383
关于php和java真个实现。
再比以下面这个关于ios真个实现：
http://www.cnblogs.com/wanyakun/p/3403352.html
为什么要采取 no padding 这类情势：
AES加密如果原输入数据不够16字节的整数位，就要补齐，如果采取
pkcs7或pkcs5这类加密方式，末端添加的数据多是0x1,0x2,0x3，不固定，
在解码后需要把末端过剩的字符去掉，就显得比较辣手。
如果不管补齐多少位，末端都是温@良@顺 温@良@顺,去掉的话比较容易操作。
好了，再次确认1下，这里使用的是 AES128 CBC no padding加密解密方式。
先上ios真个代码：
<pre class="objc" name="code">//
// AES128.m
// login
//
// Created by wangdan on 15⑶⑶.
// Copyright (c) 2015年 wangdan. All rights reserved.
//
#import "AES128.h"
#import <CommonCrypto/CommonCryptor.h>
#import "GTMBase64.h"
@implementation AES128
+(NSString *)AES128Encrypt:(NSString *)plainText withKey:(NSString *)key
{
if( ![self validKey:key] ){
return nil;
}
char keyPtr[kCCKeySizeAES128+1];
memset(keyPtr, 0, sizeof(keyPtr));
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
char ivPtr[kCCBlockSizeAES128+1];
memset(ivPtr, 0, sizeof(ivPtr));
[key getCString:ivPtr maxLength:sizeof(ivPtr) encoding:NSUTF8StringEncoding];
NSData* data = [plainText dataUsingEncoding:NSUTF8StringEncoding];
NSUInteger dataLength = [data length];
int diff = kCCKeySizeAES128 - (dataLength % kCCKeySizeAES128);
unsigned long newSize = 0;
if(diff > 0)
{
newSize = dataLength + diff;
NSLog(@"diff is %d",diff);
}
char dataPtr[newSize];
memcpy(dataPtr, [data bytes], [data length]);
for(int i = 0; i < diff; i++)
{
dataPtr[i + dataLength] =0x0000;
}
size_t bufferSize = newSize + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
memset(buffer, 0, bufferSize);
size_t numBytesCrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,
kCCAlgorithmAES128,
0x0000,
[key UTF8String],
kCCKeySizeAES128,
[key UTF8String],
dataPtr,
sizeof(dataPtr),
buffer,
bufferSize,
&numBytesCrypted);
if (cryptStatus == kCCSuccess) {
NSData *resultData = [NSData dataWithBytesNoCopy:buffer length:numBytesCrypted];
return [GTMBase64 stringByEncodingData:resultData];
}
free(buffer);
return nil;
}
+(NSString *)processDecodedString:(NSString *)decoded
{
if( decoded==nil || decoded.length==0 ){
return nil;
}
const char *tmpStr=[decoded UTF8String];
int i=0;
while( tmpStr[i]!=' ' )
{
i++;
}
NSString *final=[[NSString alloc]initWithBytes:tmpStr length:i encoding:NSUTF8StringEncoding];
return final;
}
+(NSString *)AES128Decrypt:(NSString *)encryptText withKey:(NSString *)key
{
if( ![self validKey:key] ){
return nil;
}
char keyPtr[kCCKeySizeAES128 + 1];
memset(keyPtr, 0, sizeof(keyPtr));
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
char ivPtr[kCCBlockSizeAES128 + 1];
memset(ivPtr, 0, sizeof(ivPtr));
[key getCString:ivPtr maxLength:sizeof(ivPtr) encoding:NSUTF8StringEncoding];
NSData *data = [GTMBase64 decodeData:[encryptText dataUsingEncoding:NSUTF8StringEncoding]];
NSUInteger dataLength = [data length];
size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
size_t numBytesCrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt,
kCCAlgorithmAES128,
0x0000,
[key UTF8String],
kCCBlockSizeAES128,
[key UTF8String],
[data bytes],
dataLength,
buffer,
bufferSize,
&numBytesCrypted);
if (cryptStatus == kCCSuccess) {
NSData *resultData = [NSData dataWithBytesNoCopy:buffer length:numBytesCrypted];
NSString *decoded=[[NSString alloc] initWithData:resultData encoding:NSUTF8StringEncoding];
return [self processDecodedString:decoded];
}
free(buffer);
return nil;
}
+(BOOL)validKey:(NSString*)key
{
if( key==nil || key.length !=16 ){
return NO;
}
return YES;
}
-(NSString *)processDecodedString:(NSString *)decoded
{
if( decoded==nil || decoded.length==0 ){
return nil;
}
const char *tmpStr=[decoded UTF8String];
int i=0;
while( tmpStr[i]!=' ' )
{
i++;
}
NSString *final=[[NSString alloc]initWithBytes:tmpStr length:i encoding:NSUTF8StringEncoding];
return final;
}
@end
上述代码需要说明的是，进行AES编码时，输入编码必须是16字节的整数倍，不然调用ios 的系统api会报错 ⑷003
补齐的字节数全部填充为0
另外 processDecodedString这个函数为了把解码后的字符串，末尾去掉温@良@顺 温@良@顺
下面是PHP真个代码，这个代码是大神些写的啊，经过实际实验是能使用的：
<?php
$privateKey = "1234567812345678";
$iv = "1234567812345678";
$data = "Test String";
//加密
$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $data, MCRYPT_MODE_CBC, $iv);
echo(base64_encode($encrypted));
echo '<br/>';
//解密
$encryptedData = base64_decode("2fbwW9+8vPId2/foafZq6Q==");
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $privateKey, $encryptedData, MCRYPT_MODE_CBC, $iv);
echo($decrypted);
?>