A variable of type time_t is supposed to be a time measurement starting at

[openssl.git] / FAQ

diff --git a/FAQ b/FAQ
index 45566252f45821543ed877cfb0d4ca08d79264d3..24f4de7727028aefcaf97b9a55dc338b7a72d200 100644 (file)
--- a/FAQ
+++ b/FAQ
@@ -9,6 +9,7 @@ OpenSSL  -  Frequently Asked Questions
 * Where can I get a compiled version of OpenSSL?
 * Why aren't tools like 'autoconf' and 'libtool' used?
 * What is an 'engine' version?
 * Where can I get a compiled version of OpenSSL?
 * Why aren't tools like 'autoconf' and 'libtool' used?
 * What is an 'engine' version?

+* How do I check the authenticity of the OpenSSL distribution?

 
 [LEGAL] Legal questions
 
 
 [LEGAL] Legal questions
 


@@ -36,10 +37,13 @@ OpenSSL  -  Frequently Asked Questions
 * Why does the linker complain about undefined symbols?
 * Why does the OpenSSL test fail with "bc: command not found"?
 * Why does the OpenSSL test fail with "bc: 1 no implemented"?
 * Why does the linker complain about undefined symbols?
 * Why does the OpenSSL test fail with "bc: command not found"?
 * Why does the OpenSSL test fail with "bc: 1 no implemented"?

+* Why does the OpenSSL test fail with "bc: stack empty"?

 * 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 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
 
 
 [PROG] Questions about programming with OpenSSL
 


@@ -62,7 +66,7 @@ OpenSSL  -  Frequently Asked Questions
 * Which is the current version of OpenSSL?
 
 The current version is available from <URL: http://www.openssl.org>.
 * Which is the current version of OpenSSL?
 
 The current version is available from <URL: http://www.openssl.org>.

-OpenSSL 0.9.6d was released on May 9, 2002.
+OpenSSL 0.9.6g was released on August 9, 2002.

 
 In addition to the current stable release, you can also access daily
 snapshots of the OpenSSL development version at <URL:
 
 In addition to the current stable release, you can also access daily
 snapshots of the OpenSSL development version at <URL:


@@ -133,6 +137,19 @@ hardware. This was realized in a special release '0.9.6-engine'. With
 version 0.9.7 (not yet released) the changes were merged into the main
 development line, so that the special release is no longer necessary.
 
 version 0.9.7 (not yet released) the changes were merged into the main
 development line, so that the special release is no longer necessary.
 

+* How do I check the authenticity of the OpenSSL distribution?
+
+We provide MD5 digests and ASC signatures of each tarball.
+Use MD5 to check that a tarball from a mirror site is identical:
+
+   md5sum TARBALL | awk '{print $1;}' | cmp - TARBALL.md5
+
+You can check authenticity using pgp or gpg. You need the OpenSSL team
+member public key used to sign it (download it from a key server). Then
+just do:
+
+   pgp TARBALL.asc
+

 [LEGAL] =======================================================================
 
 * Do I need patent licenses to use OpenSSL?
 [LEGAL] =======================================================================
 
 * Do I need patent licenses to use OpenSSL?


@@ -223,6 +240,8 @@ 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.
   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.

+A third party /dev/random solution for Solaris is available at
+  http://www.cosy.sbg.ac.at/~andi/

 
 
 * Why do I get an "unable to write 'random state'" error message?
 
 
 * Why do I get an "unable to write 'random state'" error message?


@@ -400,6 +419,17 @@ and compile/install it.  GNU bc (see http://www.gnu.org/software/software.html
 for download instructions) can be safely used, for example.
 
 
 for download instructions) can be safely used, for example.
 
 

+* Why does the OpenSSL test fail with "bc: stack empty"?
+
+On some DG/ux versions, bc seems to have a too small stack for calculations
+that the OpenSSL bntest throws at it.  This gets triggered when you run the
+test suite (using "make test").  The message returned is "bc: stack empty".
+
+The best way to deal with this is to find another implementation of bc
+and compile/install it.  GNU bc (see http://www.gnu.org/software/software.html
+for download instructions) can be safely used, for example.
+
+

 * Why does the OpenSSL compilation fail on Alpha Tru64 Unix?
 
 On some Alpha installations running Tru64 Unix and Compaq C, the compilation
 * Why does the OpenSSL compilation fail on Alpha Tru64 Unix?
 
 On some Alpha installations running Tru64 Unix and Compaq C, the compilation


@@ -496,6 +526,32 @@ MDC-2: 4,908,861 13/03/2007
 IDEA:  5,214,703 25/05/2010
 RC5:   5,724,428 03/03/2015
 
 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?
 [PROG] ========================================================================
 
 * Is OpenSSL thread-safe?