how large are commercial keys what are the typical sizes for keys for commercial secret key algorithms i know des is bits tripple des is bits and idea is bits is there anything made in the us that has bit keys anything anywhere that has larger keys i ve heard that rc can be scaled to arbitrarily large keys but is this actually implemented anywhere finally can anyone even concieve of a time place where bit keys aren t sufficient i certainly can t even at a trillion keys a second it would take about billion years to search just one billionth of that keys space thanks dane
