topic Re: Issue with /dev/random in Operating System - HP-UX

Issue with /dev/random

Tharish_1 — Mon, 07 Feb 2005 15:31:11 GMT

Hi Guys,

I have installed a netegrity software on HP-UX, looks like there is an issue with /dev/random. I have tried linking /dev/random to /dev/urandom the issue still persists.
Any Ideas?

February 7, 2005 11:53:53.330 AM[2279771:E] Exception Stack Trace: java.lang.InternalError: URLSeedGenerator file:/dev/random generated exception: Invalid argument
at sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedByte(Seed
Generator.java:532)
at sun.security.provider.SeedGenerator.getSeedBytes(SeedGenerator.java:1
February 7, 2005 11:53:51.347 AM[2279771:I] Created Active Expression instance for class: com.netegrity.assertiongenerator.AssertionGenerator
February 7, 2005 11:53:53.330 AM[2279771:E] Exception Stack Trace: java.lang.InternalError: URLSeedGenerator file:/dev/random generated exception: Invalid argument
at sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedByte(Seed
Generator.java:532)
at sun.security.provider.SeedGenerator.getSeedBytes(SeedGenerator.java:137)
at sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.jav
a:132)
at sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:112)
at sun.security.provider.SecureRandom.privateStaticInitHelpeR(SecureRandom.java:161)
at sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:188)
at java.security.SecureRandom.nextBytes(SecureRandom.java:381)
at com.netegrity.assertiongenerator.SeedGenerator.generateSeed(SeedGenerator.java:65)
at com.netegrity.assertiongenerator.SeedGenerator.(SeedGenerator.java:35)@

Re: Issue with /dev/random

A. Clay Stephenson — Mon, 07 Feb 2005 15:51:57 GMT

I'm reading between the lines but it appears that you are trying to do an illegal operation on the /dev/random device. Only the read() system call is defined for this device and from the function name you may be trying to write to the device or perform an illegal ioctl() operation. Man 7 random for details.

Re: Issue with /dev/random

Tharish_1 — Mon, 07 Feb 2005 16:45:51 GMT

Ok, I will get back to the vendor for that since I dont have access to the source code. I will be surprised since My understanding is /dev/random is supposed to be a read-only interface.

Re: Issue with /dev/random

Tharish_1 — Mon, 07 Feb 2005 18:27:10 GMT

I created a manual random file and changed the /opt/java1.4/jre/lib/security/java.security file defention to that from /dev/urandom.
It works fine, but donâ t know if I can actually do this :-(

#securerandom.source=file:/dev/urandom
securerandom.source=file:/opt/bea/netegrity/rand

Re: Issue with /dev/random

harry d brown jr — Tue, 08 Feb 2005 07:42:21 GMT

You need to install the /dev/random & urandom devices correctly. It REQUIRES a REBOOT!

http://docs.hp.com/en/5990-7263/ch01s01.html

live free or die
harry d brown jr