/*
 * WARNING: depending on the particular platform, truerand() output may
 * be biased or correlated.  In general, you can expect about 16 bits of
 * "pseudo-entropy" out of each 32 bit word returned by truerand(),
 * but it may not be uniformly diffused.  You should therefore run
 * the output through some post-whitening function (like MD5 or DES or
 * whatever) before using it to generate key material.  (RSAREF's
 * random package does this for you when you feed truerand() bits to the
 * seed input function.)
 *
 * Test these assumptions on your own platform before fielding a system
 * based on this software or these techniques.
 *
 * This software seems to work well (at 16 bits per truerand() call) on
 * a Sun Sparc-20 under SunOS 4.1.3 and on a P100 under BSDI 2.0.  You're
 * on your own elsewhere.
 */