On 11/26/2014 11:58 PM, Heinrich Schuchardt wrote: > /dev/urandom uses a pseudo random number generator to replace > missing entropy. Thanks, Heinrich. Applied. Cheers, Michael > Signed-off-by: Heinrich Schuchardt <xypron.glpk@xxxxxx> > --- > man4/random.4 | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/man4/random.4 b/man4/random.4 > index 44d9e34..1be19b8 100644 > --- a/man4/random.4 > +++ b/man4/random.4 > @@ -63,8 +63,9 @@ will be set to > .LP > A read from the \fI/dev/urandom\fP device will not block > waiting for more entropy. > -As a result, if there is not sufficient entropy in the > -entropy pool, the returned values are theoretically vulnerable to a > +If there is not sufficient entropy, a pseudorandom number generator is used > +to create the requested bytes. > +As a result, in this case the returned values are theoretically vulnerable to a > cryptographic attack on the algorithms used by the driver. > Knowledge of how to do this is not available in the current unclassified > literature, but it is theoretically possible that such an attack may > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
