On 06/11/2017 15:00, William Atwood wrote: > Supplementary question: > > Is the change from SHA-1 (in RFC 4193) to SHA256 (in this draft) > intentional? If so (and I presume that it is, given that SHA-1 seems to > be in disrepute), then the statements in Section 6.10.2 of the ACP document: > > "The first 48 bits follow the ULA scheme, as defined in [RFC4193], to > which a type field is added:" > > will have to be altered to note the change from SHA-1 to SHA256.
Note that there aren't any normative keywords applied to the choice of SHA-1 in RFC4193, so I don't think this is a normative update. > Bill > > -------- Forwarded Message -------- > Subject: [Anima] Section 6.10.2 of draft-ietf-anima-autonomic-control-plane > Date: Sat, 4 Nov 2017 13:43:54 -0400 > From: William Atwood <[email protected]> > To: [email protected] > > Para 2, bullet 2, says the following: > > "The 40 bits ULA "global ID" (term from [RFC4193]) for ACP > addresses carried in the domain information field of domain > certificates are the first 40 bits of the SHA256 hash of the > routing subdomain from the same domain information field. In the > example of Section 6.1.1, the routing subdomain is > "area51.research.acp.example.com" and the 40 bits ULA "global ID" > a379a6f6ee." > > Since I wanted to see what the SHA256 hash would be for an Autonomic > Network that I plan to create in my lab, I went looking for SHA256 hash > generators on-line. > > For two different on-line generators, I get the following results: > > http://www.xorbin.com/tools/sha256-hash-calculator > area51.research.acp.example.com > 89b714f3db8e41558cfb49d4d763ee7cc5ae53a3ffe8a17039679d06dc9bb0e3 > > http://passwordsgenerator.net/sha256-hash-generator/ > area51.research.acp.example.com > 89B714F3DB8E41558CFB49D4D763EE7CC5AE53A3FFE8A17039679D06DC9BB0E3 > > These give identical results, but the first 40 bits have no (apparent) > relationship with the result cited in the ACP draft. > > Does anyone have any idea which one is wrong, and why? > > Bill > _______________________________________________ Anima mailing list [email protected] https://www.ietf.org/mailman/listinfo/anima
