<div dir="ltr"><div class="gmail_extra">Hi Kelvin</div><div class="gmail_extra"><br></div><div class="gmail_extra">You can use DigestSha256 signature type <a href="http://named-data.net/doc/ndn-tlv/signature.html#digestsha256">http://named-data.net/doc/ndn-tlv/signature.html#digestsha256</a></div>

<div class="gmail_extra">This signature type is a checksum over the Data packet which can be easily generated without requiring a key.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Yours, Junxiao</div>
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