How to test the robustness of the cipher image against chosen and known plaintext attacks? Is there any algorithm to test the robustness of the cipher image against chosen and known plaintext attacks?
If you wish to construct a system which is resilient to Chosen Plaintext Attacks and Known Plaintext Attacks, the method to do so is through provable security, not empirical tests. If you're attacking an existing scheme which has not been proven secure, typically you would perform a variant of one of the methods that have been used for cryptanalysis in the past. For instance, you can try differential cryptanalysis or linear cryptanalysis.