License and credits

License

Openswan is a free software (also known as open source) implementation of IPsec for the Linux operating system. It is a fork (and continuation) of FreeS/WAN.
It is licensed under the GNU GPL version 2, see the LICENSE file in the distribution.

Credits

The following people have contributed major resources and/or significant patches to Openswan 2.×. There are many more unlisted contributors. If you feel you or your company are missing, please add yourself or contact [email protected]

• Michael Richardson <[email protected]> – KLIPS, OCF, IKEv2, testing
• Paul Wouters <[email protected]> – IKEv2, packaging, porting, support
• Antony Antony <[email protected]> – IKEv2, testing
• Ken Bantoft <[email protected]> – DPD, cross compiling, integration
• Bart Trojanowski <[email protected]> – OCF, KLIPS
• Herbert Xu <[email protected]> – NETKEY / XFRM, IKEv2, NAT-T
• David McCullough <[email protected]> – KLIPS, OCF
• D. Hugh Redelmeier <[email protected]> – Bug fixer extraordinaire
• Andreas Steffen <[email protected]> – X.509 Certificates
• Dr{Who} on Freenode – Porting NAT-T + XAUTH to Openswan 2.x
• Jacco de Leeuw <[email protected]> – Fixes for MS Interop
• Mathieu Lafon <[email protected]> – NAT-T Support
• Nate Carlson – Force NAT-T framework, KLIPS for 2.6, etc…
• Stephen Bevan <[email protected]> – RFC2409 port selectors
• Tuomo Soini <[email protected]> – NETKEY, KLIPS, _updown scripts and more
• Matthew Galgoci <[email protected]>
• Miloslav Trmac <[email protected]>
• Avesh Agarwal <[email protected]>, USE_LIBNSS, SElinux
• Hiren Joshi Cyberoam [www.cyberoam.com] – Various fixes
• Shingo Yamawaki <[email protected]> – Various KLIPS patches
• Harald Jenny <[email protected]> – Debian support
• Rene Mayrhofer <[email protected]> – Debian support
• Hugh Daniel <[email protected]> – Testing

Openswan is a fork of the FreeS/WAN 2.04 codebase. Please see the doc/CREDITS.freeswan file from FreeS/WAN for details on original work.

Contributions

The following organizations contributed to Openswan:

• Xelerance (http://www.xelerance.com) has sponsored the continued development of Openswan from version 1.0 to version 2.6.36
• RedHat (http://www.redhat.com/) sponsored the development of IKEv2, USE_LIBNSS and various fixes related to NETKEY.
• Secure Computing / Snapgear contributed OCF integration, DYNDNS support and many other KLIPS and userland related fixes.
• IXIA Communications (http://www.ixiacom.com/) sponsored the cryptographic refit in pluto, which permitted Aggressive mode to be incorporated safely.
• Sony Japan contributed many fixes to KLIPS, and sponsored IPsec/L2TP development
• Packt Publishing (http://www.packtpub.com/) contributed 5% of book sales of the Openswan book
• Siemens Germany sponsored IPsec/L2TP development
• Emagister sponsored IPsec/L2TP development
• Astaro (http://www.astaro.de/) contributed patches and hardware
• HP (http://www.hp.com/) donated hardware
• Cyberoam (http://www.cyberoam.com/) contributed various patches