Crypto coprocessors have been available for many years. I have one of these in my ancient router: http://soekris.com/products/vpn14x1.html http://soekris.com/p

Crypto coprocessors have been available for many years. I have one of these in my ancient router: http://soekris.com/products/vpn14x1.html http://soekris.com/products/vpn14x1.html I doubt they will ever become ubiquitous. For most people CPU crypto will always be good enough and saving a few dollars is more important. Otherwise you would already own one.