We have implemented frequency hiding order-preserving encryption schemes for MySQL. These following features are included in our model: UDF code for our scheme
###Hint: in order to work properly, you should compile ope.cc manually. Shell codes:
g++ -c -o ope.o -std=c++11 -I </path/to/your/mysql/include/lib> -fPIC -Wall ope.cc;
g++ -shared -o ope.so ope.o;Then add ope.so to your MySQL plugin directory: /usr/lib/mysql/plugins/*.so.
sudo mv obj/ope.so /usr/lib/mysql/plugins;and it will generate an obj directory in which you can find ope.o as well as ope.so.
Next, create all the functions with soname:
CREATE FUNCTION XXX RETURNS REAL SONAME 'ope.so';step by step.