Re: GCM / seqiv and SP800-38D
flat view
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: 2015-02-28 10:47:18
On Thu, Feb 19, 2015 at 07:56:48AM +0100, Stephan Mueller wrote:
In case of rfc4106(gcm(aes)), the IV is 96 bits. Thus, our constructed IV looks like:
The IV to rfc4106 is 96 bits, but the IV to the underlying gcm is 128 bits so that's what guarantees the uniqueness. Cheers, -- Email: Herbert Xu [off-list ref] Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt