* Why can't I use OpenSSL certificates with SSL client authentication?
* Why does my browser give a warning about a mismatched hostname?
* How do I install a CA certificate into a browser?
+* Why is OpenSSL x509 DN output not conformant to RFC2253?
[BUILD] Questions about building and testing OpenSSL
* Why does the OpenSSL compilation fail on Alpha Tru64 Unix?
* Why does the OpenSSL compilation fail with "ar: command not found"?
* Why does the OpenSSL compilation fail on Win32 with VC++?
+* What is special about OpenSSL on Redhat?
+* Why does the OpenSSL compilation fail on MacOS X?
+* Why does the OpenSSL test suite fail on MacOS X?
[PROG] Questions about programming with OpenSSL
* Why can't the OpenSSH configure script detect OpenSSL?
* Can I use OpenSSL's SSL library with non-blocking I/O?
* Why doesn't my server application receive a client certificate?
+* Why does compilation fail due to an undefined symbol NID_uniqueIdentifier?
===============================================================================
* Which is the current version of OpenSSL?
The current version is available from <URL: http://www.openssl.org>.
-OpenSSL 0.9.6b was released on July 9th, 2001.
+OpenSSL 0.9.6e was released on July 30, 2002.
In addition to the current stable release, you can also access daily
snapshots of the OpenSSL development version at <URL:
installing the SUNski package from Sun patch 105710-01 (Sparc) which
adds a /dev/random device and make sure it gets used, usually through
$RANDFILE. There are probably similar patches for the other Solaris
-versions. However, be warned that /dev/random is usually a blocking
-device, which may have some effects on OpenSSL.
+versions. An official statement from Sun with respect to /dev/random
+support can be found at
+ http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsrdb/27606&zone_32=SUNWski
+However, be warned that /dev/random is usually a blocking device, which
+may have some effects on OpenSSL.
* Why do I get an "unable to write 'random state'" error message?
reduces its security to zero: allowing anyone to forge certificates in
whatever name they choose.
+* Why is OpenSSL x509 DN output not conformant to RFC2253?
+
+The ways to print out the oneline format of the DN (Distinguished Name) have
+been extended in version 0.9.7 of OpenSSL. Using the new X509_NAME_print_ex()
+interface, the "-nameopt" option could be introduded. See the manual
+page of the "openssl x509" commandline tool for details. The old behaviour
+has however been left as default for the sake of compatibility.
[BUILD] =======================================================================
and the changes are only valid for the current DOS session.
+* What is special about OpenSSL on Redhat?
+
+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,
+including sendmail and ssh. /usr/local/bin is a good alternative choice. The
+libraries that come with Red Hat 7.0 onwards have different names and so are
+not affected. (eg For Red Hat 7.2 they are /lib/libssl.so.0.9.6b and
+/lib/libcrypto.so.0.9.6b with symlinks /lib/libssl.so.2 and
+/lib/libcrypto.so.2 respectively).
+
+Please note that we have been advised by Red Hat attempting to recompile the
+openssl rpm with all the cryptography enabled will not work. All other
+packages depend on the original Red Hat supplied openssl package. It is also
+worth noting that due to the way Red Hat supplies its packages, updates to
+openssl on each distribution never change the package version, only the
+build number. For example, on Red Hat 7.1, the latest openssl package has
+version number 0.9.6 and build number 9 even though it contains all the
+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
+
+
+* Why does the OpenSSL compilation fail on MacOS X?
+
+If the failure happens when trying to build the "openssl" binary, with
+a large number of undefined symbols, it's very probable that you have
+OpenSSL 0.9.6b delivered with the operating system (you can find out by
+running '/usr/bin/openssl version') and that you were trying to build
+OpenSSL 0.9.7 or newer. The problem is that the loader ('ld') in
+MacOS X has a misfeature that's quite difficult to go around.
+Look in the file PROBLEMS for a more detailed explanation and for possible
+solutions.
+
+
+* Why does the OpenSSL test suite fail on MacOS X?
+
+If the failure happens when running 'make test' and the RC4 test fails,
+it's very probable that you have OpenSSL 0.9.6b delivered with the
+operating system (you can find out by running '/usr/bin/openssl version')
+and that you were trying to build OpenSSL 0.9.6d. The problem is that
+the loader ('ld') in MacOS X has a misfeature that's quite difficult to
+go around and has linked the programs "openssl" and the test programs
+with /usr/lib/libcrypto.dylib and /usr/lib/libssl.dylib instead of the
+libraries you just built.
+Look in the file PROBLEMS for a more detailed explanation and for possible
+solutions.
+
[PROG] ========================================================================
* Is OpenSSL thread-safe?
SSL_CTX_set_verify() function to enable the use of client certificates.
+* Why does compilation fail due to an undefined symbol NID_uniqueIdentifier?
+
+For OpenSSL 0.9.7 the OID table was extended and corrected. In earlier
+versions, uniqueIdentifier was incorrectly used for X.509 certificates.
+The correct name according to RFC2256 (LDAP) is x500UniqueIdentifier.
+Change your code to use the new name when compiling against OpenSSL 0.9.7.
+
+
===============================================================================
projects / openssl.git / blobdiff