[Ndn-interest] Adding HMAC to available NDN signature types

[Yingdi Yu]

Hi Adeola,

It is great that we have a proposal for HMAC, a few comments about the doc.

1. I think you should mentioned in the spec that how to handle keys that are longer than the hash output.
2. we should either disable keys that are shorter than hash output or still state how to generate HMAC when a key is short. Just "discourage" is not enough.

Yingdi

On Sep 19, 2014, at 11:12 AM, Adeola Bannis <thecodemaiden at gmail.com> wrote:

> Hello all,
> 
> I am proposing to add an HMAC type, using SHA256 as the hash function, to the signature types defined at http://named-data.net/doc/NDN-TLV/current/signature.html. This will enable communication with symmetric keys, which reduces the signing and verification load on resource-constrained devices.
> 
> The proposal is attached. Please review it and reply with any comments or suggestions.
> 
> Thanks,
> Adeola
> <TLV_spec_HMAC_SHA256.docx>_______________________________________________
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