search for: entropies

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

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 just finished compiling openssh-2.1.0p3 on a SCO openserver system. I generated the keys fine and genereated the host keys both rsa and dsa without problems. ssh (version1) works great. I tried to use ssh (version 2) and after being prompted to login, it quits. I am attaching a script file of... ssh -v -2 root at sco to see if you can find the problem. Let me know how I can help. [root at

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

I remember a discussion to the effect that using DSA keys in sshd increases the requirement for random bits available on the system... and that this requirement (was it a 128 bit random number per connection?) presents security problems on systems that don't have a decent source of entropy? Am I misinterpreting those discussions? We are having a problem deploying sshd (no prngd) where sshd

> This subthread in the Xen patch thread has now digressed onto discussions > about entropy and security. Perhaps you guys could add some points. Well, I can try. I don't think this answers any questions, but perhaps it informs the discussion. Apologies if the Cc: list is getting a bit bloated. > On 11 May 2006, at 01:33, Herbert Xu wrote: >>> But if sampling virtual

> This subthread in the Xen patch thread has now digressed onto discussions > about entropy and security. Perhaps you guys could add some points. Well, I can try. I don't think this answers any questions, but perhaps it informs the discussion. Apologies if the Cc: list is getting a bit bloated. > On 11 May 2006, at 01:33, Herbert Xu wrote: >>> But if sampling virtual

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

Hi, I am using Van Dyke SecureCRT 3.2.1 to access an AIX server running OpenSSH-2.5.0p1. Using ssh1 with X11 forwarding enabled, the server reports the following error (in the client session): Packet integrity error. (34) This problem was not evident in 2.3.0p1. Running sshd in debug gives the output: debug1: sshd version OpenSSH_2.5.1p1 debug1: load_private_key_autodetect: type 0 RSA1

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 28/05/17 23:56, Leon Fauster wrote: >> Am 28.05.2017 um 12:16 schrieb Robert Moskowitz <rgm at htt-consult.com>: >> >> >> >> 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

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, The question looks like simple. It's probably even stupid. But I spent several hours searching Internet, downloaded tons of papers, where deviance is mentioned and... And haven't found an answer. Well, it is clear for me the using of entropy when I split some node of a classification tree. The sense is clear, because entropy is an old good measure of how uniform is distribution.

Hi Ben, here is the output from sshd -d -d -d: mvs2:sygm:/usr/local/sbin:#./sshd -d -d -d debug3: Reading output from 'ls -alni /var/log' debug3: Time elapsed: 459 msec debug2: Command 'ls -alni /var/log' timed out debug3: Got 0.00 bytes of entropy from 'ls -alni /var/log' debug3: Reading output from 'ls -alni /var/adm' debug3: Time elapsed: 143 msec debug2:

Hi Ben, I test the command sshd -d -d -d several times and mostly the sshd-Daemon not started and sometimes the sshd-Daemon started, with the message: debug1: Seeded RNG with 16 bytes from programs debug1: Seeded RNG with 3 bytes from system calls debug1: sshd version OpenSSH_2.9p1 debug1: private host key: #0 type 0 RSA1 debug1: Bind to port 22 on 0.0.0.0. Server listening on 0.0.0.0 port 22.

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 directly. I can compute the joint entropy as entropy(table(paste(x,y,sep=""))) [1] 1.791759 and then mutual information will be h(x) + h(y) - h(x,y) = 1.098612 + 1.098612...

Hi, I'm running openssh 2.1.1p4 on Solaris 7 (sparc). Occationally, when I boot up the server, the startup script I wrote to start sshd fails to start sshd with the following error: fatal: Not enough entropy in RNG What am I doing wrong?? Is there anything I can do to prevent this from happening? Is just restarting sshd a valid thing to do?? Thanks for any thoughts, David

Hi, this is not a R question per se, but since I'm on the lookout for an R solution I thought this was the best place: I would like to calculate the entropy for a variable and the conditional entropy between two variables, H(X|Y) for variables X & Y I have coded the case for the categorical case but I'm having problems understanding how to do it for the continous case. >From

i want to calculate shannon entropy which is H1,H2,H3....upto H7? if there is any function or any package in which i can find this entropy directly. do you have any information please share this and i will be very thankful to you. Regards, ++++++++++++++++++++++++++++++++++++++++++++++ MUHAMMAD FAISAL Department of Statistics and Decion Support system, University of

This oddity happened with test2: debug: Got 0.00 bytes of entropy from /usr/bin/who debug: Got 0.05 bytes of entropy from /usr/bin/last debug: Got 0.00 bytes of entropy from debug: Got 0.88 bytes of entropy from /usr/sbin/df debug: Got 0.00 bytes of entropy from /usr/sbin/df debug: Got 0.12 bytes of entropy from /usr/bin/vmstat debug: Got 0.00 bytes of entropy from /usr/bin/uptime I've