Hello, Thank you for the answers.
I am sorry I was not a bit more explicit. I am trying to find an acceptable way to encrypt the data to prevent any access of it in any way unless the person who is trying to access it knows how to decrypt it. As I mentioned, I looked a bit through the patch, but I am not sure of its status. Also, in case someone has experimented with this previously, I am very interested in the approach and results as far as performance goes when using encryption/decryption additional to Lucene. Thank you very much for the help, Rafaela