[ndnSIM] Exclude field in The new version of NDN

[Zeinab]

Thanks dear Junxiao for your reply, 
To secure my protocol , I need to mention in the Interest message that a user is not interested in specific data ( just assume data is fresh also ) so you recommend me to define a new field in Interest message or is there any other field that I can use . 
Thanks 
Best regards 
Zeinab

> On Sep 19, 2018, at 12:19 PM, Junxiao Shi <shijunxiao at email.arizona.edu> wrote:
> 
> Hi Zeinab
> 
> 
>> If we assume the attacker tries to creat the same name and injects to the network .
> Attacker cannot “inject” content without expressing an Interest. If they expres an Interest, the Interest would match the existing cached Data. In case the Interest has MustBeFresh but the existing cached Data is non-fresh, the new Data replaces existing Data.

> 
>> In the case that router just saves one content for each name , just assume the router save the content that the attacker sent .
> Yes, the new Data will replace the existing Data, if it is accepted.
> 
>> You mean this kind of attacks cannot be happened .
> Forwarder cannot distinguish who is “attacker” and who is not. You should secure your routing to prevent such attacks.
> 
>> Moreover, i would like to ask the Exclude field is completely removed from the new version of NDN?
> Yes, Exclude is going to be completely removed. NFD 0.6.3 is the last release that processes Exclude.
> 
> Yours, Junxiao
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