验签过程

-(void)httpRequestWithURL:(NSDictionary*)dic
{
    self.requestParam=dic;
    NSLog(@"httpRequestWithURL: %@", dic);

    //请求参数dic
    NSMutableDictionary* mutableDic = [[[NSMutableDictionary alloc] initWithDictionary:dic] autorelease];
    if (self.isStandardIterface)
    {
        //baseURL地址
        self.serverPath = [IHApiConfigManager configManager].appServer;
       //对字典进行正序遍历
        NSEnumerator* enumer = [[mutableDic allKeys] objectEnumerator];
        
        NSString* key;
        while (key = [enumer nextObject]) {
            NSString* value = [mutableDic objectForKey:key];
            if (![value isKindOfClass:[NSString class]]) 
                {
                value = [NSString stringWithFormat:@"%@", value];
                [mutableDic setObject:value forKey:key];
                }
        }
        
      //appkey作为参数
        [mutableDic setObject:[IHApiConfigManager configManager].appKey forKey:@"appkey"];
     //channel_id作为参数
        [mutableDic setObject:[IHApiConfigManager configManager].channel_id forKey:@"channel_id"];
//api_version作为参数
        [mutableDic setObject:[IHApiConfigManager configManager].apiVersion forKey:@"api_version"];
        
        if (USERMODEL.sessionID==nil||[USERMODEL.sessionID length]==0)
        {
            
        }
        else
        {
            [mutableDic setObject:USERMODEL.sessionID forKey:@"sessionid"];
        }
        
        
        //品牌，型号，操作系统，
        NSString* ua = [[JLUainfo getInstance] getUA];
        [mutableDic setObject:ua forKey:@"ua"];
//UUID
        [mutableDic setObject:[IHUtility getUUID] forKey:@"deviceid"];
//imei
        [mutableDic setObject:[IHUtility getIMEI] forKey:@"imei"];    
//imsi
        [mutableDic setObject:[IHUtility getIMSI] forKey:@"imsi"];  
//时间 
        [mutableDic setObject:[IHUtility generateTimestamp] forKey:@"timestamp"];     
        [mutableDic setObject:[IHUtility generateNonce] forKey:@"nonce"];    
        // ihaaa.basfsfse.sysfss.initsfs
        NSString* method = [mutableDic objectForKey:@"method"];
        NSString* apiVersion = [IHApiConfigManager getAPIVersionWithMethod:method appKey:[IHApiConfigManager configManager].appKey];
        if (apiVersion)
        {
            [mutableDic setObject:apiVersion forKey:@"api_version"];
        }
    }
    
//将字典
    NSString* parameter = [IHUtility getParameterString:mutableDic];

    //NSLog(@"paraString: %@", parameter); 
    
    NSString* url = [GJEncode URLEncode:self.serverPath];

    NSString* paraEncodeString = [GJEncode URLEncode:parameter];
    
    NSString* decRes = [NSString stringWithFormat:@"%@%@", url, paraEncodeString];
    //NSLog(@"decRes:%@", decRes);
    
    decRes = [IHUtility base64StringWithHMACSHA1Digest:decRes key:[IHApiConfigManager configManager].appSecret];
    
    NSString* signature = [GJEncode URLEncode:decRes];
    //NSLog(@"signature:%@", signature); 
    
    
 NSMutableDictionary* dict = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                 @"json2",@"contentformat",
                                 @"gzip" ,@"Accept-Encoding",  
                                 nil];
   NSString* u = self.serverPath;
    if (!self.isStandardIterface) {
        u=[NSString stringWithFormat:@"%@?%@&sign=%@",self.serverPath,parameter,signature];
    }
    
 [self.httpRequest preCreateConnectRequestWithURL:u];
    
 [self.httpRequest setHttpHeader:dict];
 [self.httpRequest setHttpMethod:@"POST"];

    NSString* postStr = [NSString stringWithFormat:@"%@&sign=%@", parameter, signature];
    
    NSLog(@"total url:  %@?%@", self.serverPath, postStr);
    
    [self.httpRequest setHttpBody:[postStr dataUsingEncoding:NSUTF8StringEncoding]];
 [self setHttpConnectFinishedMethod:self.httpRequest];
 [self.httpRequest startCreatedConnectWithFurtherInfo:nil];
}

{
    "api_version" = 2;
    appkey = 1111;
    "channel_id" = 2222;
    deviceid = "";
    imei =;
    imsi =;
    method = "";
    nonce = "";
    pixel = 640x960;
    timestamp =;
    ua = "";
}