@bfox yes i am able to compile and update constant for key encrypt/decrypt.
based source there is a class CCrypKey_MasterKey6 and there is 2 static method and that's method to create old masterkey and view masterkey6.
there is a key for masterkey 6 encryption in comment, seems that's key is useless.
how to get constant key encryption/decryption ? is from SDK or another.