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Rewording: some algorithms are also patented in Europe, so choose more

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defensive phrases...
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Lutz Jänicke 2002-07-12 15:26:37 +00:00
parent b57c98df7b
commit 876811e2af
1 changed files with 9 additions and 12 deletions
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@ -466,18 +466,10 @@ and the changes are only valid for the current DOS session.
* What is special about OpenSSL on Redhat?
Red Hat Linux 7.0 and following versions already have a limited version of
openssl already installed. This may well apply to other Linux distributions
also. This version does not have support for the IDEA, RC5 and MDC-2
algorithms as these are patented within the United States. For information
these patent numbers and expiry dates are:
MDC-2: 4,908,861 13/03/2007
IDEA: 5,214,703 25/05/2010
RC5: 5,724,428 03/03/2015
However, Europeans and other non-Americans may wish to install all the
features.
Red Hat Linux (release 7.0 and later) include a preinstalled limited
version of OpenSSL. For patent reasons, support for IDEA, RC5 and MDC2
is disabled in this version. The same may apply to other Linux distributions.
Users may therefore wish to install more or all of the features left out.
To do this you MUST ensure that you do not overwrite the openssl that is in
/usr/bin on your Red Hat machine. Several packages depend on this file,
@ -499,6 +491,11 @@ relevant updates in packages up to and including 0.9.6b.
A possible way around this is to persuade Red Hat to produce a non-US
version of Red Hat Linux.
FYI: Patent numbers and expiry dates of US patents:
MDC-2: 4,908,861 13/03/2007
IDEA: 5,214,703 25/05/2010
RC5: 5,724,428 03/03/2015
[PROG] ========================================================================
* Is OpenSSL thread-safe?