<div><br></div><div><br><div class="gmail_quote"><div dir="ltr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">Zeinab Rezaiefar</strong> <span dir="ltr"><<a href="mailto:z.rezaiefar@yahoo.com">z.rezaiefar@yahoo.com</a>></span><br>Date: Fri, Sep 21, 2018 at 01:23<br>Subject: Re: [ndnSIM] Exclude field in The new version of NDN<br>To: Junxiao Shi <<a href="mailto:shijunxiao@email.arizona.edu">shijunxiao@email.arizona.edu</a>><br></div><br><br><div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px"></div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px">
</div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px">Thank you so much for your reply.</div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px">However, I still believe that Exclude field can be used for some purposes although it needs some modification and limitation of using this field.</div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px"> Anyhow, this is just my thinking :)</div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px"> thanks again</div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px">best regards</div></div><div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px"><br></div><div class="m_6424684534417517844ydpa456876byahoo-style-wrap" style="font-family:times new roman,new york,times,serif;font-size:16px">
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On Wednesday, September 19, 2018 06:31:06 PM KST, Junxiao Shi <<a href="mailto:shijunxiao@email.arizona.edu" target="_blank">shijunxiao@email.arizona.edu</a>> wrote:
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<div><div id="m_6424684534417517844yiv8305675697"><div><div><div>Hi Zeinab</div></div><div><div class="m_6424684534417517844yiv8305675697gmail_quote"><div dir="ltr"><br clear="none"></div><blockquote class="m_6424684534417517844yiv8305675697gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>To secure my protocol , I need to mention in the Interest message that a user is not interested in specific data</div></div></blockquote><div>You indicate the Interest should not match certain Data by using a more specific prefix.</div><div>Suppose you have Data /A/B/1, /A/B/2, /A/B/3. If you don’t want /A/B/1, you express Interest /A/B/2 or /A/B/3.</div><div><br clear="none"></div><blockquote class="m_6424684534417517844yiv8305675697gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div> ( just assume data is fresh also )</div></div></blockquote><div>If you need to discover the latest version, producer is supposed to set FreshnessPeriod correctly such that previous versions become non-fresh. See <a href="https://named-data.net/publications/hoticn18realtime-retrieval/" rel="nofollow" shape="rect" target="_blank">https://named-data.net/publications/hoticn18realtime-retrieval/</a> .</div><div>If you are concerned that someone would attack the network by responding to one of the earlier Interests with a Data having large FreshnessPeriod, so that it stays fresh for long duration: use a feedback mechanism to ask the network to erase such Data <a href="https://named-data.net/publications/mitigating_poisoned_content/" rel="nofollow" shape="rect" target="_blank">https://named-data.net/publications/mitigating_poisoned_content/</a> ; see also <a href="http://hdl.handle.net/10150/625652" rel="nofollow" shape="rect" target="_blank">http://hdl.handle.net/10150/625652</a> section 4.2 about where to place the trust schema for the Data. Exclude selector won’t help you because the malicious producer can just send another Data with large FreshnessPeriod that satisfies your new Interest.</div><div><br clear="none"></div><blockquote class="m_6424684534417517844yiv8305675697gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div> so you recommend me to define a new field in Interest message or is there any other field that I can use . </div></div><div><blockquote type="cite"><div>
</div></blockquote></div></blockquote></div></div><div>90% of the time when someone thinks they want a new field in network layer, it’s a misunderstanding of the protocol.</div><div class="m_6424684534417517844yiv8305675697yqt3349522210" id="m_6424684534417517844yiv8305675697yqtfd68189"><div><br clear="none"></div><div>Yours, Junxiao</div></div></div></div></div>
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