search for: prng

Greetings. I'm wondering if OpenSSH automatically falls back to the internal PRNG (such as used on Solaris) when it can't use a better alternative. The reason I ask is this: the machine I am compiling OpenSSH on has the /dev/random patch for Solaris 8. I'd like OpenSSH to use /dev/random whenever possible, if it exists. However, I'd prefer NOT to have to compile a s...

Just for peace of mind, can someone who knows the openssh code better than I do, confirm that openssh doesn't use (in any circumstances) the openssl prng (since the code in versions prior to 0.9.6b is rather weak). My understanding is that it doesn't (using either /dev/random, egd, prngd or the builtin code), but I may have missed some other use of the openssl prng elsewhere... -- Jon

Hello all, I tried OpenSSH versions 2.1.1p4, 2.2.0p1 and the latest snapshot briefly on 64-bit Irix 6.5.7f an 6.5.9m. Both times, no matter what I do, I'll get 'PRNG initialization failed -- exiting'. This happens with ssh-keygen (the keys aren't even generated yet, ssh binary etc.) It's clear that Irix etc. don't have a proper entropy pool like *BSD and Linux do, but shouldn't this be at least usable? FWIW, consigure shows for entropy so...

Hi when i restart sshd I get PRNG is not seeded # /etc/init.d/sshd restart PRNG is not seeded # No idea as what is going on Thanks and Regards Kaushal

...sport mechanism ( actually, I am running the dirvish backup wrapper, www.dirvish.org, around rsync). In all cases, I am pulling filesystems from a linux client to a linux backup server. Rsync has worked flawlessly every time. Except ... Sometimes in my logs I see, at random, the warning "PRNG is not seeded", which some folks encounter when they improperly configure ssh or /dev/urandom. This appears to emit from ssh to stderr; there is nothing in any of the files in /var/log, or in the -vv log from rsync. This has happened 6 times in the 12 months, twice in the last week. Pretty r...

Heya, I have compiled and installed OpenSSH on a Solaris/Sparc machine and whenever I try to start any of the ssh programs I get "fatal: PRNG initialisation failed -- exiting" Now, I have looked through the mailing lists and have seen some mention that this indicates it can't open the ssh_prng_cmds file, which entropy.c also seems to indicate the problem is. However, this snippet from truss would indicate it opened it fine and...

I upgraded from OpenSSH_3.0.2p1 to OpenSSH 3.4p1. Starting SSHD or ssh-keygen I'm getting the "PRNG is not seeded". I have verified that prngd is running and "egc.pl /var/spool/prngd/pool get" runs just fine reporting 32800 bits of entropy. My platform is Solaris 8 (sparc) and I downloaded binaries from www.sunfreeware.com. My guess is the build of OpenSSH 3.4.p1 is looking for...

...is regarding a sshd problem. In our system we use ocrandom (a random number generator) to fill in the device /dev/urandom from which sshd reads the randomness for seeding. In a situation we stop the ocrandom and sshd. Now as usual we start the ocrandom first and then sshd. We get an error "PRNG is not seeded" while starting sshd. When we start the sshd for the second time the /dev/urandom gets populated immediately and it starts properly. This problem is present in the version 3.6.1p2. We did not have the problem with the previuos version 3.0.1p2 that we used. Looking at the sour...

hi I am using Solaris 8 and installing the 3.8 openssh software that I received from www.sunfreeware.com I following the installation instruction see attachment but when I get to ssh-keygen -t rsa1 -f /usr/local/etc/ssh_host_key -N "" I get a PRNG is not seeded could you help me in this matter. Thank you for your cooperation. Spencer Crim

...ndom > plugin. For this we have used either random_r or a home-brew-ish > Linear Congruential Generator. Use of random_r is problematic on BSDs > because it doesn't exist there. Use of the LCG is simply a bad > choice. > > Replace both uses with a better quality and faster PRNG from David > Blackman and Sebastiano Vigna called ‘xoshiro256** 1.0’ > (http://xoshiro.di.unimi.it/). This is released into the public > domain (where possible) so it compatible with the licensing of nbdkit. > > This also fixes a bug in the random plugin where it could never > g...

v2: - Fix seeding. - Add a test that nbdkit-random-plugin is producing something which looks at least somewhat random. Rich.

...o All, I want to obtain the LLVM IR of a program (pixel-test.c from pixman library), I am using the following command to obtain the LLVM IR representation of this program: $ clang -fsyntax-only ./test/pixel-test.c -S -emit-llvm -o pixel-test.ll However I get the following error: ./test/utils-prng.h:137:32: error: can't convert between vector values of different size ('uint32x4' and 'int') uint32x4 e = x->a - ((x->b << 27) + (x->b >> (32 - 27))); ~~~~ ^ ~~ ./test/utils-prng.h:137:47: error: can't convert between vect...

Changes: Our attempt in 3.6.0 to workaround a problem with the OpenSSL PRNG actually made the problem worse. This release corrects the workaround to properly reseed the OpenSSL PRNG after forking. Thanks to ghazel for the report! * http://unicorn.bogomips.org/ * mongrel-unicorn at rubyforge.org * git://bogomips.org/unicorn.git -- Eric Wong

http://bugzilla.mindrot.org/show_bug.cgi?id=328 Summary: starting sshd yeilds PRNG not seeded Product: Portable OpenSSH Version: -current Platform: Sparc OS/Version: Solaris Status: NEW Severity: major Priority: P1 Component: sshd AssignedTo: openssh-unix-dev at mindrot.org ReportedBy...

Hi, dovecot tries to use OpenSSL's PRNG to generate random numbers if there is no /dev/urandom found. Unfortunately, it is flawed in its present form, since the PRNG is not seeded before RAND_bytes() is called in src/lib/randgen.c (on systems which have /dev/urandom, OpenSSL automatically seeds its PRNG from the urandom device). Here&...

http://bugzilla.mindrot.org/show_bug.cgi?id=575 Summary: a bug make me crazy--PRNG is not seeded Product: Portable OpenSSH Version: -current Platform: Other OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Build system AssignedTo: openssh-bugs at mindrot.org Repo...

Hello, I'm running R 2.10.1 on Windows Vista. I'm selecting a random sample of several hundred items out of a larger population of several thousand. I realize there is srswor() in package sampling for exactly this purpose, but as far as I can tell it uses the native PRNG which may or may not be random enough. Instead I used the random package which pulls random numbers from random.org, although in my extended reading [vignette("random-intro", package="random")] it seem like that may have problems also. I'm curious what the general consensu...

http://bugzilla.mindrot.org/show_bug.cgi?id=968 Summary: OpenSSH 3.8p1 PRNG seed extraction failed error Product: Portable OpenSSH Version: 3.8p1 Platform: UltraSparc OS/Version: SunOS Status: NEW Severity: major Priority: P2 Component: scp AssignedTo: openssh-bugs at mindrot.org...

Hi Is there any documentation for the new features in 2.5 beta3? I can?t find any info... I have it up and running, but I?m trying to squash errors such as the below. EG how do I set up ?PRNG?? What are the changes to the sources that need implementing? No PRNG seed configured. PRNG is insecure. Unknown tags are used in the config file. See the error.log for details. Legacy sources are connected. See mount list for details. Global client, and source limit is bigger than suitable for...

Dear Statistics-Experts, Assume you have given a new and untested pseudo-random number generator (prng) and you want to test if it "works". The distribution function (cdf) from which the prng is supposed to sample is known. Further, you are given some finite (large) sample from the prng. If the sample is one-dimensional, we can apply the cdf to it and test the sample for being real...