On Sat, 2010-02-27 at 00:44 -0500, Pavel Roskin wrote: > Hello! > > I'm looking for ways to accelerate CCMP on Intel IXP425. > > drivers/crypto/ixp4xx_crypto.c implements only asynchronous block > ciphers, and the reason appears to be that the crypto processor uses DMA > and interrupts to communicate with the CPU, which would make synchronous > encryption ineffective. > > It turns out that mac80211 uses plain AES for CCMP. However, it uses an > asynchronous block cipher "ecb(arc4)" for WEP and TKIP. > > I'd like to make CCMP use an asynchronous block cipher. Has anyone > attempted that? Are there any issues I should be aware of? Well the issue is going to be having to interrupt the flow there and then pick it back up after crypto. Or you can stick it after the entire flow and treat it like hw crypto in the card. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
