-The PKCS#11 header files in programs/pluto/rsaref/ are from RSA Security Inc.,
-so they must include the following phrase: "RSA Security Inc. PKCS#11
-Cryptographic Token Interface (Cryptoki)". The headers are not under the GPL;
-see details in src/pluto/rsaref/pkcs11.h.
+Linking strongSwan statically or dynamically with other modules is making a
+combined work based on strongSwan. Thus, the terms and conditions of the GNU
+General Public License cover the whole combination.
+
+In addition, as a special exception, the copyright holders of strongSwan give
+you permission to combine strongSwan with free software programs or libraries
+that are released under the GNU LGPL and with code included in the standard
+release of the OpenSSL project's OpenSSL library under the OpenSSL or SSLeay
+licenses (or modified versions of such code, with unchanged license). You may
+copy and distribute such a system following the terms of the GNU GPL for
+strongSwan and the licenses of the other code concerned, provided that you
+include the source code of that other code when and as the GNU GPL requires
+distribution of source code.
+
+Note that people who make modified versions of strongSwan are not obligated to
+grant this special exception for their modified versions; it is their choice
+whether to do so. The GNU General Public License gives permission to release a
+modified version without this exception; this exception also makes it possible
+to release a modified version which carries forward this exception.
+
+
+The DES implementation in the des plugin and the Blowfish implementation in the
+blowfish plugin are under a BSD style license (see source files for details).
+Note that these parts have an advertising clause in it.
+
+The MD4 and MD5 implementations in the md4 and md5 plugins are from RSA Data
+Security Inc., so this package must include the following phrase:
+"derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm".