similar to: Question about compiled-in entropy gatherer

Using the trial internal entropy gathering routines Damien so kindly provided, I noticed stuff happening slowly. I think I've traced this to the 'ls -alni /var/mail' taking a long time. Given that this is likely to hurt a few sites similar to mine (large number of users with an NFS-mounted /var/mail directory) is it sensible to put a configure option in to disable this part? I attach

I'm using OpenSSH 2.3.0p1. When my users use ssh for the first time, using rhosts authentication, entropy.c drops the privs in prng_write_seedfile() at the setuid(original_uid) line (line 550, approx): void prng_write_seedfile(void) { int fd; char seed[1024]; char filename[1024]; struct passwd *pw; /* Don't bother if we have already saved a seed */ if (prng_seed_saved) return;

http://bugzilla.mindrot.org/show_bug.cgi?id=435 dtucker at zip.com.au changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|internal entropy gatherer |internal entropy gatherer ------- Additional Comments From dtucker at zip.com.au 2002-11-15 00:21 ------- Which platform did you

[NOTE: I'm new to this list and this is my first approach to OpenSSH code.] I've enhanced "--with-prngd-port=PORT" flag to accept an optional hostname as in "myhost:myport", e.g.: % ./configure --with-prngd-port=example.com:12345 Although I'm certain that this may cause big trouble if remote gatherer isn't online (ssh will refuse to open any connection) I

http://bugzilla.mindrot.org/show_bug.cgi?id=435 Summary: internal entropy gatherer Product: Portable OpenSSH Version: 3.5p1 Platform: All OS/Version: All Status: NEW Severity: major Priority: P2 Component: ssh AssignedTo: openssh-unix-dev at mindrot.org ReportedBy: udo_guenthner at

Where is the best place for me to change the PID file location? I _could_ change it in ssh.h but then I'd have to do this every time. Am I best to put in a -DPIDDIR="/etc" or something? Alternatively, would it be easy to change the configure.in stuff to let me do a --pid-dir="/etc" or a --pid-file="/etc/ssh.pid"? Thanks, Andrew Stribblehill Systems Programmer,

entropy.c assumes RUSAGE_SELF and RUSAGE_CHILDREN *** entropy.c.orig Thu Jun 15 13:57:28 2000 --- entropy.c Thu Jun 15 13:58:25 2000 *************** *** 201,207 **** --- 201,209 ---- total_entropy_estimate += stir_gettimeofday(1.0); total_entropy_estimate += stir_clock(0.2); + #ifdef HAVE_GETRUSAGE total_entropy_estimate += stir_rusage(RUSAGE_SELF, 2.0); + #endif

On Thu, 27 Sep 2001 20:41:05 EDT, Damien Miller writes: > On Thu, 27 Sep 2001, Dan Astoorian wrote: > > > > > It would (IMHO) be useful if there were a way to optionally configure > > that code to fall back to the internal entropy gathering routines in the > > event that EGD was not available; as it is, the routines simply fail if > > EGD is unavailable at the

I have been experiencing problems with remote data collection systems reporting not enough entropy in RNG. It mostly seems to be self correcting since a retry of the data transport succeeds. One system however shows the following everytime an ssh connection is attempted. Interactive commands do not seem to be affected. I have perused the code but the entropy gatherer seems to be fairly simple and

Something strange happens when I compile the pre27 SSH: ocal/ssh//include -DETCDIR=\"/usr/local/ssh//etc\" \ -DSSH_PROGRAM=\"/usr/local/ssh//bin/ssh\" \ -DSSH_ASKPASS_DEFAULT=\"/usr/local/ssh//libexec/ssh/ssh-askpass\" \ -DHAVE_CONFIG_H -c atomicio.c In file included from includes.h:106, from atomicio.c:26: fake-socket.h:30: parse error before

Hello, suppose one is forming a probability p(x,y), where the x,y axes are somewhat accidental and rotation is possible. I'm thinking about whether the discrete entropy H(x,y) should change if the probability is rotated in the x,y plane. My current conclusion is that it _does_ change, at least if the entropy is estimated via bins. As a simple example, suppose the probability mass is

On 05/28/2017 04:24 AM, Tony Mountifield wrote: > In article <792718e8-f403-1dea-367d-977b157af82c at htt-consult.com>, > Robert Moskowitz <rgm at htt-consult.com> wrote: >> >> On 05/26/2017 08:35 PM, Leon Fauster wrote: >>>> Am 27.05.2017 um 01:09 schrieb Robert Moskowitz <rgm at htt-consult.com>: >>>> >>>> I am use to low

suppose I have two factor vectors: x <- as.factor(c("a","b","a","c","b","c")) y <- as.factor(c("b","a","a","c","c","b")) I can compute their entropies: entropy(table(x)) [1] 1.098612 using library(entropy) but it is not clear how to compute their mutual information

On 05/26/2017 08:35 PM, Leon Fauster wrote: >> Am 27.05.2017 um 01:09 schrieb Robert Moskowitz <rgm at htt-consult.com>: >> >> I am use to low random entropy on my arm boards, not an intel. >> >> On my Lenovo x120e, >> >> cat /proc/sys/kernel/random/entropy_avail >> >> reports 3190 bits of entropy. >> >> On my armv7 with

Maybe its slightly off-topic, but can anybody help with computing entropy on matrix of probabilities? Guess we have a matrix of probabilites, A, 2x2, something like this: z x 0 1 2 3 4 0 0.063 0.018 0.019 0.016 0.000 1 0.011 0.162 0.040 0.042 0.003 2 0.015 0.030 0.164 0.033 0.002 3 0.012 0.035 0.036 0.159 0.002 4 0.004 0.021 0.018 0.013 0.082 sum(A)=1 Can i

I am use to low random entropy on my arm boards, not an intel. On my Lenovo x120e, cat /proc/sys/kernel/random/entropy_avail reports 3190 bits of entropy. On my armv7 with Centos7 I would get 130 unless I installed rng-tools and then I get ~1300. SSH into one and it drops back to 30! for a few minutes. Sigh. Anyway on my new Zotac nano ad12 with an AMD E-1800 duo core, I am seeing 180.

Hello All, My question is not directly related to R but rather on which statistical method I should look in to for capturing the entropy of a data-set as a number. In this figure http://www.twitpic.com/18sob5 are two data sets blue and green (x-axis is time) that fluctuate between (-1,+1). Clearly, green has 4 jumps while blue has 1 (and a some?). Intuitively, green has more entropy than blue. Is

I have a need to have the same OpenSSH binaries run on multiple machines which are administered by different people. That means on Solaris, for example, there will be some with /dev/random, some on which I can run prngd because they'll be installing my binaries as root, and some which will have neither because they will be only installed as non-root. Below is a patch to enable choosing all 3

Over the holidays, I intend to finally rid portable OpenSSH of the builtin entropy collection code. Here's what I intend to do: When init_rng is called, we'll check OpenSSL's RAND_status(). If this indicates that their PRNG is already seeded, we'll do nothing. This effectively detects platforms which have /dev/urandom (or similar) configured into OpenSSL. If OpenSSL isn't

Hi, I am using the reldist package and having problems determining the p-value for the entropy value from the reldist function. I am able to properly determine the entropy value, but cannot figure out what function to use to find the p-value. I have tried using rpy, rpluy (which provides p-values for the polarization values) and investing the results from reldist(). Thus, far I cannot find the