We develop a method for generating pseudorandom binary sequences using the
Bernoulli map on cubic algebraic integers. The distinguishing characteristic of
our generator is that it generates chaotic true orbits of the Bernoulli map by
exact computation. In particular, we clarify a way to properly prepare a set of
initial points (i.e., seeds), which is needed when generating multiple
pseudorandom sequences. With this seed selection method, we can distribute the
initial points almost uniformly in the unit interval and can also guarantee
that the orbits starting from them do not merge. We also report results of a
large variety of tests indicating that the generated pseudorandom sequences
have good statistical properties as well as an advantage over what is probably
the most popular generator, the Mersenne Twister MT19937