search for: yarrow

Hi guys We at ZKS were also interested in yarrow under unix. However the implementation that counterpane have on their web page doesn't correspond to the paper -- it is a pretty different design. Also the windows code is hairy in the extreme -- I decided to reimplement it from scratch from the paper, rather than try to look at that windows...

Some time ago I sent to this list: > We at ZKS were also interested in yarrow under unix. However the > implementation that counterpane have on their web page doesn't > correspond to the paper -- it is a pretty different design. And finally... ZKS' open source yarrow implementation (BSD license) is at: http://opensource.zeroknowledge.com Damien Miller wro...

...orrection details The following list contains the revision numbers of each file that was corrected in FreeBSD. Branch Revision Path - ------------------------------------------------------------------------- RELENG_5 src/sys/dev/random/yarrow.c 1.44.2.1 RELENG_5_5 src/UPDATING 1.342.2.35.2.17 src/sys/conf/newvers.sh 1.62.2.21.2.19 src/sys/dev/random/yarrow.c 1.44.8.1 RELENG_6 src/sys/d...

...orrection details The following list contains the revision numbers of each file that was corrected in FreeBSD. Branch Revision Path - ------------------------------------------------------------------------- RELENG_5 src/sys/dev/random/yarrow.c 1.44.2.1 RELENG_5_5 src/UPDATING 1.342.2.35.2.17 src/sys/conf/newvers.sh 1.62.2.21.2.19 src/sys/dev/random/yarrow.c 1.44.8.1 RELENG_6 src/sys/d...

...based on the key stream generator of the RC4 cipher. It is expected to be cryptographically strong, and used throughout the FreeBSD kernel for a variety of purposes, some of which rely on its cryptographic strength. arc4random(9) is periodically reseeded with entropy from the FreeBSD kernel's Yarrow random number generator, which gathers entropy from a variety of sources including hardware interrupts. During the boot process, additional entropy is provided to the Yarrow random number generator from userland, helping to ensure that adequate entropy is present for cryptographic purposes. II....

...based on the key stream generator of the RC4 cipher. It is expected to be cryptographically strong, and used throughout the FreeBSD kernel for a variety of purposes, some of which rely on its cryptographic strength. arc4random(9) is periodically reseeded with entropy from the FreeBSD kernel's Yarrow random number generator, which gathers entropy from a variety of sources including hardware interrupts. During the boot process, additional entropy is provided to the Yarrow random number generator from userland, helping to ensure that adequate entropy is present for cryptographic purposes. II....

Now that ssh-rand-helper has been segregated into a separate program, I'd like to revisit an old question about its entropy gathering. - would it be desirable to make it possible for ssh-rand-helper to fall back to external commands if PRNGD cannot be reached, instead of choosing one or the other at compile time? - When using PRNGD, the program gets 48 bytes of entropy from PRNGD,

Roger Marquis wrote: > [snip] > >It takes all of 2 seconds to generate a ssh 2 new session on a >500Mhz cpu (causing less than 20% utilization). Considering that >99% of even the most heavily loaded servers have more than enough >cpu for this task I don't really see it as an issue. > >Also, by generating a different key for each session you get better >entropy,

...eeded, we will fork+suid(user)+exec a subprocess "ssh-rand-helper" which will return 64 bytes of randomness to stdout. This will be used to seed OpenSSL's PRNG. 512 bits should be enough for anyone :) ssh-rand-helper may be a program which fetches randomness from PRNGd, it could be a Yarrow implementation or it could be an adaptation of the current entropy code to run in a one-shot mode. I'll certainly implement a PRNGd ssh-rand-helper, if time permits I'll do one of the others. This takes all the responsability out of OpenSSH for collecting random numbers and allows sites t...

...ge which system commands are used as inputs to the Pseudo Random Noise Generator. For our network here, for example, I have commented out the call to arp since that one change decreases SSH session startup time significantly on our Solaris boxen. Related question: Is anyone actively trying to get Yarrow or some other algorithmic source of entropy into OpenSSH? I suppose this is really a question for the OpenSSL folks... Rip Loomis Voice Number: (410) 953-6874 -------------------------------------------------------- Senior Security Engineer Center for Information Security Technology Science Appl...

Hi. I've been playing a bit with "use sound card as an entropy source" idea. This simple program does what I wanted: http://people.freebsd.org/~pjd/misc/sndrand.tbz The program is very simple, it should be run with two arguments: % sndtest /dev/dspW 1048576 > rand.data This command will generate 1MB of random data. With my sound card: pcm0: <Intel ICH3 (82801CA)>

Hi everyone, i just installed dovecot in Fedora Core release 1 (Yarrow). When accessing from a eudora 6.1 client, first it gave ssl authentication problems. I fixed disabling them in eudora, but now it authenticates ok and then it says that there is no inbox for that user. Any idea? Enrique Pedraza Valiente Formador en Lenguajes Avanzados y Nuevas Tecnolog?as cell...

Dear R-Gurus: This afternoon I was installing the "Hmisc" package. I use R in Linux (Fedora Core 1 (yarrow)) on a Compaq presario with 128 MB RAM laptop. Opening an R session as a root user (superuser), I issued install.packages("Hmisc") and waited. R downloaded the package, installation was going on, and on the standard output I could see that a list of "documentation filenames"...

...e tables. Anyhow, could someone please point me to info and examples of this nature of access ? Of course, doing this kind of thing in ruby itself is simple - I''ve done this for simultaneous access to MySql and postgres, as in when I transfered tables from the one to the other. Maurice Yarrow --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, sen...

On Thu, Jan 13, 2000 at 17:34:10, Andre Lucas wrote: > Subject: /dev/urandom > On Thu, Jan 13, 2000 at 09:24:01AM -0700, SysProg - Nathan Paul Simons wrote: > > On Thu, 13 Jan 2000, Ben Taylor wrote: > > > > > On Thu, 13 Jan 2000, Max Shaposhnikov wrote: > > > > why ssh1.27 doesn't requre /dev/urandom on solaris? > > > > i think the

...seems that those times have enough variation that we can use it for entropy harvesting. It happens even before root is mounted, so pretty early. On the machine I'm testing it, which has minimal kernel plus NIC driver I see 75 device_attach() calls. I'm being very careful and advertising to yarrow that each call has only 4 bits of entropy (most of the time there is much more). This gives 300 bits of entropy on this machine before we even start init. For real hardware like sound card it takes between 34647162 and 35548675 cycles to run device_attach(), so the difference here is 901513. If al...

I was doing some regression testing in 5.5: Specifically testing booting up a 'virgin' hard disk from a clean install. I was testing what happened if the 300 second timeout happened vs hitting <return> for 'fast+insecure' startup and punching in a bunch of random garbage. I found that for some reason, on a 2.4Ghz Celeron, the 'sysctl -a' and 'date' seeding

...rcentile (where x = 10th, 20th, ... etc) values? I looked for such functions in the documentation, but couldn't find one. Has anyone written a similar function that can be used? Is there a module or a function that I have missed? I use R in both Windows XP as well as Linux (Fedora Core 1 (Yarrow)) on a Duron I Gz machine with 128 MB RAM. Thanks in Advance, Arin Basu

...rcentile (where x = 10th, 20th, ... etc) values? I looked for such functions in the documentation, but couldn't find one. Has anyone written a similar function that can be used? Is there a module or a function that I have missed? I use R in both Windows XP as well as Linux (Fedora Core 1 (Yarrow)) on a Duron I Gz machine with 128 MB RAM. Thanks in Advance, Arin Basu ______________________________________________ R-help at stat.math.ethz.ch mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Hello, I don't know if it's ISOLINUX or a broken BIOS, this is the first time ever seeing this error. "Extremely broken BIOS" on a EPIA -M10 BIOS Rev 2.07 (latest ver available) EDEN VIA mini-ITX mobo. ISOLINUX on RH8 ver 1.75, RH9 ver 2.00 and Yarrow ver 2.06 all produce the same type of error. RH 7.3 and Lindows boot and build without any problem but I don't think they use ISOLINUX as a boot loader. Any thoughts would be appreciated Thanks Doug -- FREE Unlimited Worldwide Voip calling set-up an account and start saving today! http://ww...