1. A method for performing coding resource management, the method being applied to a processing circuit, the method comprising: with regard to a specific coding operation, selecting a specific module from a hardware module and a program module; and performing the specific coding operation by utilizing the specific module; determining whether the specific coding operation corresponds to a Cipher Block Chaining (CBC) coding mode or to an Electronic Code Block (ECB) coding mode; when it is determined that the specific coding operation corresponds to the Cipher Block Chaining (CBC) coding mode, selecting the hardware module as the specific module; and when it is determined that the specific coding operation corresponds to the Electronic Code Block (ECB) coding mode, selecting the program module as the specific module; wherein the specific coding operation is symmetric encryption standard.