Redistribution and use in source and binary forms of libpwquality, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain any existing copyright notice, and this entire permission notice in its entirety, including the disclaimer of warranties. 2. Redistributions in binary form must reproduce all prior and current copyright notices, this list of conditions, and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of any author may not be used to endorse or promote products derived from this software without their specific prior written permission.