21 Sep
2014
21 Sep
'14
2:14 a.m.
On Sat, Sep 20, 2014 at 06:53:06PM +0200, stef wrote:
On Sat, Sep 20, 2014 at 06:43:56PM +0200, CodesInChaos wrote:
Why would you use scrypt for anything except strengthening low entropy secrets (like passwords)?
reason: i'm stupid, wasn't thinking, and had so far no such valuable feedback as ours.
For high entropy secrets there are much simpler and cleaner alternatives, such as HKDF.
excellent observation. with nacl would generic_hash(master_key, some_const, key_size) be sufficient as a kdf?
thank you for this useful feedback! i removed scrypt and replaced it with above suggestion. updated on git. -- otr fp: https://www.ctrlc.hu/~stef/otr.txt