jdbcbcrypt

Adapting JDBCRealm to support bcrypt(https://en.wikipedia.org/wiki/Bcrypt) passwords for basic authentication with Tomcat 8.

Documentation https://tomcat.apache.org/tomcat-7.0-doc/realm-howto.html#JDBCRealm

Problem:

• Needed to configure basic authentication with Tomcat and a database.
• The passwords of the users table were encrypted using bcrypt so using the default JDBCRealm implementation was not enough as it is not supported.

Solution:

• Small modification to the JDBCRealm tomcat implementation: https://github.com/apache/tomcat80/blob/trunk/java/org/apache/catalina/realm/JDBCRealm.java
• Generate jar with maven and copy to $CATALINA_HOME/lib folder (you will also need to copy the bcrypt jar to $CATALINA_HOME/lib).
• Reference the customized realm from your server.xml realm configuration (check server.xml example on this project).
• Restart tomcat.