http://www.sagemath.org/doc/reference/sage/misc/randstate.html
says: "If set_random_seed() is called with no arguments, then a new seed is automatically selected. On operating systems that support it, the new seed comes from os.urandom(); this is intended to be a truly random (not pseudo-random), cryptographically secure number. (Whether it is actually cryptographically secure depends on operating system details that are outside the control of Sage.)" I agree /dev/urandom will give a truely random seed, but the numbers generated from that seed will still be psuedo random, and not truely random, so they are not suitable for cryptographic purposes. Dave -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To post to this group, send email to sage-devel@googlegroups.com. To unsubscribe from this group, send email to sage-devel+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en.