diff options
Diffstat (limited to 'lib/libc/stdlib/rand.3')
| -rw-r--r-- | lib/libc/stdlib/rand.3 | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/lib/libc/stdlib/rand.3 b/lib/libc/stdlib/rand.3 index 3eb1a1d..390a40b 100644 --- a/lib/libc/stdlib/rand.3 +++ b/lib/libc/stdlib/rand.3 @@ -32,7 +32,7 @@ .\" @(#)rand.3 8.1 (Berkeley) 6/4/93 .\" $FreeBSD$ .\" -.Dd October 6, 2010 +.Dd September 4, 2012 .Dt RAND 3 .Os .Sh NAME @@ -55,9 +55,15 @@ .Fn rand_r "unsigned *ctx" .Sh DESCRIPTION .Bf -symbolic +The functions described in this manual page are not cryptographically +secure. +Cryptographic applications should use +.Xr arc4random 3 +instead. +.Ef +.Pp These interfaces are obsoleted by .Xr random 3 . -.Ef .Pp The .Fn rand @@ -88,9 +94,6 @@ The function initializes a seed using the .Xr random 4 random number device which returns good random numbers. -However, the -.Fn rand -function still remains unsuitable for cryptographic use. .Pp The .Fn rand_r @@ -105,8 +108,6 @@ For better generator quality, use .Xr random 3 or .Xr lrand48 3 . -Applications requiring cryptographic quality randomness should use -.Xr arc4random 3 . .Sh SEE ALSO .Xr arc4random 3 , .Xr lrand48 3 , |
