[Cryptech Tech] View random values

Joachim Strömbergson joachim at secworks.se
Thu Jun 5 12:05:55 UTC 2014


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Aloha!

The tool does not provide a good assessment of the quality of random
values generated. For one thing, the way one organizes the dimension of
the image, the image will look differently from row to the next row.

But the human eye is pretty good at spotting patterns in images and this
allows one to get glimpse of any patterns etc in the data. The included
image for example is based on values generated by the linear
congruential generator described in the book Numerical Recipies in C.

I've added this generator as an option when generating images. Enabled
using the -c or --crap flag. ;-)

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
========================================================================
 Joachim Strömbergson          Secworks AB          joachim at secworks.se
========================================================================
-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.22 (Darwin)
Comment: GPGTools - http://gpgtools.org
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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=5d9W
-----END PGP SIGNATURE-----
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bad_rnd.png
Type: image/png
Size: 675101 bytes
Desc: not available
URL: <https://lists.cryptech.is/archives/tech/attachments/20140605/f0acf905/attachment-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: bad_rnd.png.sig
Type: application/octet-stream
Size: 543 bytes
Desc: not available
URL: <https://lists.cryptech.is/archives/tech/attachments/20140605/f0acf905/attachment-0001.obj>


More information about the Tech mailing list