device implements the
.Nm Yarrow
pseudo random number generator algorithm and maintains its entropy pool.
-Addditional entropy is fed to the generator regularly by the
+Additional entropy is fed to the generator regularly by the
.Nm SecurityServer
daemon from random jitter measurements of the kernel.
.Nm SecurityServer
.Nm
device itself.
.Pp
-Paranoid programmers can counter-act this risk somewhat by collecting
+Paranoid programmers can counteract this risk somewhat by collecting
entropy of their choice (e.g. from keystroke or mouse timings)
and seeding it into
.Nm