What's the best Mac crypto program?

What is the best free/shareware program for protecting(and I mean government-strength encryption) a Mac folder or creating a protected Mac volume? Additionally, are any of the commercial products available safer than these free/shareware ones? Thanks, Philip --=--=====--=--=====--=--=====--=--=====--=--=====--=-- Philip Trauring philip@cs.brandeis.edu 617-736-6702 "knowledge is my addiction, information is my drug" http://www.cs.brandeis.edu/~philip/ --=--=====--=--=====--=--=====--=--=====--=--=====--=--