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[GNU Crypto] Ent bug, Version 2.0.1
From: |
Karsten Tinnefeld |
Subject: |
[GNU Crypto] Ent bug, Version 2.0.1 |
Date: |
Fri, 12 Mar 2004 12:11:37 +0100 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.0; de-AT; rv:1.5) Gecko/20031007 |
Dear gnu-crypto-developers:
the Ent tool to determine basic statistical parameters of an RNG seems
to have a little effect: once it examines the distribution of a
generator which delivers a Chi2-Value of exactly .5, the for-loop in
line 332 of Ent.java will never be broken and the array CHI_SQUARE_P
will be accessed at the (illegal) position CHI_SQUARE_P[0][-1].
Adding a line before line 337, saying { if (i < 0) i = 0; } cures the
problem.
Best wishes,
Karsten
--
Karsten Tinnefeld address@hidden
Silberknapp 68
44227 Dortmund T +49 231 773812
Deutschland M +49 178 2808107 F +49 231 9710384
- [GNU Crypto] Ent bug, Version 2.0.1,
Karsten Tinnefeld <=