02-24-2020
As Churchill said:
Those who trade security for freedom, deserve neither.
8 More Discussions You Might Find Interesting
1. BSD
I am running Open BSD 3.8 (3.5 upgrade) on a Pent Pro. 200, 64 Megs Ram, Nvedia Vanta TNT 16 Megs, Realtech 8139 Nic. When running ifconfig -a I get this error back. I've run searches on google no deal. I can get Stack overflow or psync, but not both. So I would really like to know how to fix it. ... (0 Replies)
Discussion started by: jmcpreach
0 Replies
2. HP-UX
Hi,
I get a problem with stack overflow on HP-UX, when running a C program.
Pid 28737 received a SIGSEGV for stack growth failure.
Possible causes: insufficient memory or swap space,
or stack size exceeded maxssiz.
The possible cause i found, was that the definition of a structure had... (0 Replies)
Discussion started by: karthikb23
0 Replies
3. AIX
Hello,
Does anybody know how to increase IBM xlf parser stack to get rid of the "parser stack overflow" error?
Thanks
Ping (1 Reply)
Discussion started by: luop0812
1 Replies
4. Shell Programming and Scripting
I have a file below which has a list of users and roles with each row having unique combination of users and roles.
USER1 ROLE1
USER1 ROLE2
USER2
USER3 ROLE1
USER3 ROLE2
USER3 ROLE3
USER4 ROLE2
....
....
I am trying to create a script which sorts the above file to have all the... (2 Replies)
Discussion started by: stevefox
2 Replies
5. Ubuntu
I have built kernel 2.6.35 on my Ubuntu system with some specific requirement. I also built some app defined module with the same kernel. I booted up the built version and I find it did not work properly as there is some gui and other modules missing problem. But the system booted up and I did... (0 Replies)
Discussion started by: sunilsukumar4u
0 Replies
6. UNIX for Dummies Questions & Answers
Help!
I have an AIX system that has a power outage.
When I logged in as root and got the system up and running it all looked ok.
But.....when a user tries to log in they receive the error: The perform stack has overflowed OP=2117 PC=2124 E=46 in emmcshflif
icrun is finished
How can I fix... (1 Reply)
Discussion started by: dlegnar
1 Replies
7. AIX
1) Do you use LDAP on AIX? (as a client)
2) If yes, what LDAP server technology do you use:
a) IDS (or ITDS) - IBM Tivoli Directory Server
b) AD
c) openLDAP
d) other - please list.
I ask, because I am looking at openLDAP as well as IDS and am wondering if there is a clear preference I... (4 Replies)
Discussion started by: MichaelFelt
4 Replies
8. Hardware
I have read a document which tells me the following 4 things are done by the RAM embedded on disk driver controller. But I don't know what's difference between buffer and cache. Thanks!
RAM on disk drive controllers
1 firmware
2 speed matching buffer
3 prefetching buffer
4 cache (1 Reply)
Discussion started by: 915086731
1 Replies
LEARN ABOUT NETBSD
arc4random
ARC4RANDOM(3) BSD Library Functions Manual ARC4RANDOM(3)
NAME
arc4random, arc4random_buf, arc4random_uniform, arc4random_stir, arc4random_addrandom -- arc4 random number generator
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
uint32_t
arc4random(void);
void
arc4random_buf(void *buffer, size_t length);
uint32_t
arc4random_uniform(uint32_t upper_bound);
void
arc4random_stir(void);
void
arc4random_addrandom(u_char *dat, int datlen);
DESCRIPTION
The arc4random() function provides a high quality 32-bit pseudo-random number very quickly. arc4random() seeds itself on a regular basis
from the kernel strong random number subsystem described in rnd(4). On each call, an ARC4 generator is used to generate a new result. The
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.
arc4random() fits into a middle ground not covered by other subsystems such as the strong, slow, and resource expensive random devices
described in rnd(4) versus the fast but poor quality interfaces described in rand(3), random(3), and drand48(3).
The arc4random_buf() function fills the buffer with length bytes of ARC4-derived random data.
The arc4random_uniform() function returns a uniformly distributed random number less than upper_bound avoiding modulo bias when the upper
bound is not a power of two.
The arc4random_stir() function reads data from /dev/urandom and uses it to permute the S-Boxes via arc4random_addrandom().
There is no need to call arc4random_stir() before using arc4random(), since arc4random() automatically initializes itself.
SEE ALSO
rand(3), rand48(3), random(3)
HISTORY
An algorithm called RC4 was designed by RSA Data Security, Inc. It was considered a trade secret, but not trademarked. 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 RC4 used to be a trade secret, the cipher is now referred to as ARC4.
These functions first appeared in OpenBSD 2.1.
BSD
February 4, 2011 BSD