On Wed, Apr 8, 2015 at 2:46 AM, Nadim Kobeissi <nadim at nadim.computer> wrote: > The plot thickens: > It turns out that HKDF does in fact advocate using the salt as the HMAC key. > https://tools.ietf.org/html/rfc5869 Yeah, I've already pointed out this is how HKDF works: https://moderncrypto.org/mail-archive/messaging/2014/001031.html Trevor