On Thu, Apr 23, 2015 at 03:24:59PM +0200, Martin Willi wrote: > > Do you have any pointer for me where this is defined? Why is it needed, > given that GCM implicitly authenticates the IV by using it in Y0? The IV if present must be covered by the ICV. This is required by RFC4303 (section 2). But really it's quite obvious. If you don't authenticate the IV, then I can easily inject random crap into your network by changing the IV. Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
