Password Generator Post: 54462

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Special Forums Cybersecurity Password Generator Post 54462 by Perderabo on Saturday 14th of August 2004 02:57:37 PM

08-14-2004

Administrator Emeritus

No, your comments are useful. Especially since I moving away from that type of interface. I wrote a simple password generator and it worked good enough with ksh. But with pdksh, it broke pretty bad. The symptom was that I could predict what character it would pick under certain conditions. I traced the problem to pdksh's internal linear congruential random number generator.

This sent me down the path of making an ultra secure password generator. And another potential problem is that command line arguments are visible to an adversary. So I've been moving away from command line arguments toward a completely interactive solution. Also I've been working on a very good random number generator. The current version gathers entropy from the user. By examining the SECONDS variable, I know how long the user took to enter the command. That number, together with the length of the command, is used to very strongly vary the output of the random number generator. Simply tapping the return key a few times will tremendously "stir the pot".

Perhaps I've been obsessing with security too much. I could add in a method of non-interactive use. This would sacrifice the cryptographic strength of the RNG. But a password generator can function well without a cryptographic strength RNG.

Perderabo

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iscsi.conf

ISCSI.CONF(5)							File Formats Manual						     ISCSI.CONF(5)

NAME

       iscsi.conf - iSCSI Target and LUN configuration

SYNOPSIS

       /etc/iscsi.conf

DESCRIPTION

       This manual page describes the format of the /etc/iscsi.conf file. This file is a simple text file that iscsid(8) uses to locate iSCSI tar-
       get devices and LUNs.  Comments are marked by lines beginning with '#'.

       Available entries include:

       DiscoveryAddress=<address>
	      IP address or hostname to use for target discovery.  A TCP port number may be specified by appending a colon followed  by  the  port
	      number. This entry must start in the first column, and must not contain any whitespace.

       TargetIpAddr=<address>
	      A synonym for DiscoveryAddress.

       Username=<user>
	      Specify  the  authentication user.  If this entry precedes all DiscoveryAddress entries, it serves as the default.  If this entry is
	      indented under a DiscoveryAddress entry, it specifies the user for all targets discovered at that IP address.

       Password=<pass>
	      Specify the authentication password for the previously listed iSCSI If this entry precedes all DiscoveryAddress entries,	it  serves
	      as  the default.	If this entry is indented under a DiscoveryAddress entry, it specifies the user for all targets discovered at that
	      IP address.

EXAMPLE

       # set the default user and password
       Username=alice
       Password=nty57nbe

       # targets at this address will use the default Username and Password
       DiscoveryAddress=192.168.10.94

       # targets at this address will use the Username and Password below
       DiscoveryAddress=192.168.10.95
	   Username=beatrice
	   Password=93fdgc20

NOTES

       The iSCSI initiator drivers, README files, and example configuration files are available on the Linux-iSCSI homepage at:

       http://linux-iscsi.sourceforge.com <http://linux-iscsi.sourceforge.com>

FILES

       /etc/iscsi.conf
	      iSCSI Target and LUN configuration

SEE ALSO

       iscsid(8)

$Revision: 1.9 $					   $Date: 2002/09/19 20:00:32 $ 					     ISCSI.CONF(5)