12 Apr
2013
12 Apr
'13
3:20 a.m.
On 04/11/2013 09:38 PM, Niels Möller wrote:
nisse@lysator.liu.se (Niels Möller) writes:
Here's a tentative Nettle interface for umac. Comments appreciated.
I modified gnutls to use that code. I noticed that the context size is quite excessive (may be an issue when is used as stack variable), but as I understand there is not much that can be done about it.
Something I noticed is that for the nonce increment you could also use the INCREMENT macro used in ctr.
Also because I work using an abstraction layer, and the umac_set_key() is different from hmac_xhash_set_key() which all have a length parameter, requires me to use a wrapper over it. It may be nicer (for me at least) if umac_set_key() accepted the length as well.
regards, Nikos