Alexandre, The license used by Bounty Castle is the MIT license, which is already known to be GPL compatible.
Having said that, the appropriate organization to ask about GPL compatibility is Free Software Foundation, so you may want to verify with them. [1] http://www.opensource.org/licenses/mit-license.php PS: This is not legal advice. -- license-discuss archive is at http://crynwr.com/cgi-bin/ezmlm-cgi?3
