From dc7ad97385c940c0a0d67b924c1b78159da5549d Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Fri, 23 Jun 2017 23:56:56 +0200 Subject: docs: cleanup directory, fix some porting information --- docs/man/arc4random.3 | 110 -------------------------------------------------- 1 file changed, 110 deletions(-) delete mode 100644 docs/man/arc4random.3 (limited to 'docs/man/arc4random.3') diff --git a/docs/man/arc4random.3 b/docs/man/arc4random.3 deleted file mode 100644 index 933d2eb0c..000000000 --- a/docs/man/arc4random.3 +++ /dev/null @@ -1,110 +0,0 @@ -.\" $OpenBSD: arc4random.3,v 1.19 2005/07/17 08:50:55 jaredy Exp $ -.\" -.\" Copyright 1997 Niels Provos -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by Niels Provos. -.\" 4. The name of the author may not be used to endorse or promote products -.\" derived from this software without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR -.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -.\" -.\" Manual page, using -mandoc macros -.\" -.Dd April 15, 1997 -.Dt ARC4RANDOM 3 -.Os -.Sh NAME -.Nm arc4random , -.Nm arc4random_stir , -.Nm arc4random_addrandom -.Nd arc4 random number generator -.Sh SYNOPSIS -.Fd #include -.Ft uint32_t -.Fn arc4random "void" -.Ft void -.Fn arc4random_stir "void" -.Ft void -.Fn arc4random_addrandom "u_char *dat" "int datlen" -.Sh DESCRIPTION -The -.Fn arc4random -function provides a high quality 32-bit pseudo-random -number very quickly. -.Fn arc4random -seeds itself on a regular basis from the kernel strong random number -subsystem described in -.Xr random 4 . -On each call, an ARC4 generator is used to generate a new result. -The -.Fn arc4random -function uses the ARC4 cipher key stream generator, -which uses 8*8 8-bit S-Boxes. -The S-Boxes can be in about (2**1700) states. -.Pp -.Fn arc4random -fits into a middle ground not covered by other subsystems such as -the strong, slow, and resource expensive random -devices described in -.Xr random 4 -versus the fast but poor quality interfaces described in -.Xr rand 3 , -.Xr random 3 , -and -.Xr drand48 3 . -.Pp -The -.Fn arc4random_stir -function reads data from a pseudo-random device, usually -.Pa /dev/urandom, -and uses it to permute the S-Boxes via -.Fn arc4random_addrandom . -.Pp -There is no need to call -.Fn arc4random_stir -before using -.Fn arc4random , -since -.Fn arc4random -automatically initializes itself. -.Sh SEE ALSO -.Xr rand 3 , -.Xr rand48 3 , -.Xr random 3 -.Sh HISTORY -An algorithm called -.Pa RC4 -was designed by RSA Data Security, Inc. -It was considered a trade secret. -Because it was a trade secret, it obviously could not be patented. -A clone of this was posted anonymously to USENET and confirmed to -be equivalent by several sources who had access to the original cipher. -Because of the trade secret situation, RSA Data Security, Inc. can do -nothing about the release of the ARC4 algorithm. -Since -.Pa RC4 -used to be a trade secret, the cipher is now referred to as -.Pa ARC4 . -.Pp -These functions first appeared in -.Ox 2.1 . -- cgit v1.2.3