[colug-432] Random Generator

Bill Schwanitz bilsch at bilsch.org
Sat May 24 13:49:13 EDT 2014


pwgen or lastpass

I have switched to lastpass with yubi key. been using that for a while now and so far works great. 


Bill Schwanitz

If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut. - Albert Einstein.

> On May 24, 2014, at 1:29 PM, tom <thomas.w.cranston at gmail.com> wrote:
> 
>> On 05/24/2014 12:17 PM, tom wrote:
>> I decided to change my Ebay password. After reading the timely 
>> password survey discussion, and other sources I decided to use a 
>> lengthy random password.
>> 
>> dd if=/dev/random bs=1 count=48 2>/dev/null | base64 -w 0 | rev | cut 
>> -b 2- | rev
>> jdLtcA0QawkgrYWDWkMEhAy9JCPX0hCwU/H0emcTew7QuTowMLax1tzKiqsFWhh
>> 
>> 
>> I wanted to see if that length exceeded ebay's limit. No I am not 
>> going to use that password. While writing it down I noticed elements 
>> that could qualify as dictionary words: awk, ME, JCP, emc, Tow, Lax.
>> 
>> I then went for a shorter password. It appears to be more random:
>> 
>> dd if=/dev/random bs=1 count=32 2>/dev/null | base64 -w 0 | rev | cut 
>> -b 2- | rev
>> nEh2cXZ+qb648Im9GbOh4i3Ls88TNKcKPraq4vp4TkY
>> 
>> Looks like the first command line is running out of resources in my 
>> laptop. It was last booted 10 days ago. Dell Inspiron 1520. Pentium 
>> DualCore 64 bit. @ GB RAM.
>> 
>> Is there a better command line to produce a random password? Anything 
>> I can do with my laptop to produce more randomness, like increase the 
>> number of processes running?
>> 
>> Tom
> I just created a password for Ebay using dd if=/dev/random bs=1 count=32 
> 2>/dev/null | base64 -w 0 | rev | cut -b 2- | rev .  I got message "Your 
> password cannot be longer than 20 characters." Are they serious about 
> security?
> 
> Any thoughts about best command line to create the most random password 
> that fits their requirements?
> 
> Tom
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