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A few improvements suggested by nectar.

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This commit is contained in:
David Malone 2003-02-23 17:22:20 +00:00
parent cbdbb7252f
commit f87890e74e
1 changed files with 12 additions and 3 deletions
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15
share/man/man4/random.4
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@ -171,7 +171,7 @@ requires cryptographic randomness.
A cryptographic random number generator should be designed
so that its output is difficult to guess,
even if a lot of auxiliary information is known
(such as when it was seeded, subsequent or previous output, ...).
(such as when it was seeded, subsequent or previous output, and so on).
On
.Fx ,
seeding for cryptographic random number generators is provided by the
@ -183,7 +183,14 @@ The
library call provides a pseudo-random sequence
which is generally reckoned to be suitable for
simple cryptographic use.
The OpenSSL library also provides functions for managing randomness.
The OpenSSL library also provides functions for managing randomness
via functions such as
.Xr RAND_bytes 3
and
.Xr RAND_add 3 .
Note that OpenSSL uses the
.Nm
device for seeding automatically.
.Pp
Randomness for simulation is required in engineering or
scientific software and games.
@ -231,7 +238,7 @@ are provided for deterministically setting
the state of the generator and
the function
.Xr srandomdev 3
is provided for setting the state the
is provided for setting the state via the
.Nm
device.
The
@ -278,6 +285,8 @@ so its use is discouraged.
.It Pa /dev/random
.El
.Sh SEE ALSO
.Xr RAND_add 3 ,
.Xr RAND_bytes 3 ,
.Xr arc4random 3 ,
.Xr drand48 3 ,
.Xr rand 3 ,