Comment by somat

You could do what openbsd did and tie all the traditional weak psudorandom interfaces into a cryptographically secure one. it will still match the drand48() interface. I still don't think I would use them for secure things but now rand() is actually random. http://man.openbsd.org/drand48

Another pet peeve is when people use the rand() when they want hash() but I will leave that rant for another day.