On Fri, Oct 19, 2007 at 10:29:32PM +0000, Joy Latten wrote: > > I think the change to CTR would be simple. > If noncesize + ivsize == blocksize, then use > entire counterblock as counter and pass to > ctr_inc_quad(). Currently, we just fail > if noncesize + ivsize == blocksize.
How about adding an explicit counter size parameter? So intead of ctr(aes,4,8) for the standard IPsec CTR we'd have ctr(aes,4,8,4). Then GCM can just use ctr(aes,4,12,4). Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> 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 [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
