[stunnel-users] fips=no

Leandro Avila leandro.avila at ymail.com
Fri Feb 18 16:56:57 CET 2011


As I understand it this is just a compliance mode.
Compliance with the FIPS 140-2 U.S. standard

In some cases, I assume you might be required to run a FIPS 140-2 compliant 
setup. In which case your cryptographic libraries should be certified. AND
there are some changes in configuration such as disabling non-fips approved
ciphers and mac algorithms
Example: Under FIPS mode MD5 and RC4 are not used. 
Then you can tell the gov. or whoever is asking you that you are following 

You can potentially achieve the same without having to enable FIPS.
Just enable strong ciphers, disable MD5,RC4,SSLv2 etc. It is all
outlined in the document.

I run stunnel at home and for personal use, so I have never had to do deep
research into this, so this is my general understanding. If anyone
would like to share a more complete answer that would be even better.


Leandro Avila

From: "dominic.schweizer at zkb.ch" <dominic.schweizer at zkb.ch>
To: stunnel-users at stunnel.org
Sent: Fri, February 18, 2011 3:09:27 AM
Subject: [stunnel-users] fips=no

Hi All,

I have the problem that when I start Stunnel, the following error pops up:

FIPS_mode_set: 2D06C06E: error:2D06C06E:FIPS routines:FIPS_mode_set:fingerprint 
does not match

I now added in my config file: fips=no and it works.

My question is now, what is the difference between with fips and without fips?

stunnel version 4.34
openssl 0.9.8
redhat 5

Thanks in advance for the answer



Freundliche Grüsse
Dominic Schweizer 
Zürcher Kantonalbank
Unix System Engineer, LIOEU

Neue Hard 9, 8005 Zürich
Telefon 044 292 83 52, Fax 044 292 80 34 
Briefadresse: Postfach 8010 Zürich, http://www.zkb.ch

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