'How to encrypt a parameter file or hide from viewing to all users in unix path in informatica?

I Have a parameter file which I am using in mapping. This file contains credentials and other sensitive information stored as follows:

$$username=myusername
$$password=mypassword
$$secret_key=xxxnnccmmmmmz
$$Client_id=ccmmmmlksjsjkl

These $$username etc. parameters are defined in the mapping level and used. Ths parameter file is stored on the unix path which can be accessed by everyone. I need to secure this information in the file, I have heard about AES Encrypt and Decrypt but not have used it . Anyone can explain how this can be achieved and encryption can be done? or can this file be read only for owner, currently it has 775 permissions.



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