As seen on the OpenBSD -announce list,
OpenBSD now has hardware cryptographic support to boost IPSEC performance.
"Currently, only cards using the HiFn 7751 chip can be used. This
Hifn chip is an IPSEC-oriented DES/3DES and SHA1/MD5 hmac engine;
ie. only symmetric cryptography.. .we are getting 63.12Mb/s 3des/sha1 ESP IPSEC. That's documented as the top performance the chip can provide. In other words, we're pretty damn impressed at ourselves." Read on for more from the message, or go straight to the
OpenBSD Hardware Crypto page.