## 20160507 AK
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 [[GrcRngTest/CZ|česky]] | '''english'''
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== Steve Gibson GRC 's Ultra High Security Password Generator (Feb 2007 - Aug 2007) ==
This is a test of the very good and useful [[https://www.grc.com/passwords.htm|GRC password generator]]

== Goal ==
Despite Steve Gibson's MS oriented style, I am a big fan. I am advising people to use SG generator for passwords. Am I right ? or not ? Let me test Steve Gibson RNG.

=== Talk with Steve :) ===
We had a short talk with Steve who kindly replied. We told him we had small concerns with GRC "perfect" passwords. We asked him to provide us a 16 MB of random data from his random source in order to remove the transformations we make on data from the website, the transformation can deplete the entropy. 

== GRC password site Updated (Aug 2007) ==
As kindly promised by Mr Steve Gibson, he has provided us 16 MB of random data from a replacement "Rijndael-based" algo. Philipp's passed the data through the die hard test page (see Rijndael-based PRNG,Steve Gibson at [[http://sig.cacert.at/cgi-bin/rngresults|cacert.at]])

As a result, the quality of randomness provided seems definitely good. So I'll continue to take advantage of the very useful https://www.grc.com/passwords.htm

Keep this url on bookmarks !

== former test method ==
We lauch several tests with the following scripts.

here is the [[attachment:grctestfast.sh|script]] to fetch the data from the website

The datas collected are in Hexa or base64 format.

here is the [[attachment:grcdecoder.jar|java convertor]] to transform lines from the previous script to a format compatible with Sourcerer RNG tester : raw binary data.

[[http://sig.cacert.at/cgi-bin/rngresults|Here are the first results]]. 

== Author ==
GuillaumeRomagny - Thanks to Steve Gibson & Philipp (cacert.at) kind support.

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 . CategorySoftware