This paper describes a new specialized Reconfigurable Cryptographic for Block ciphersArchitecture(RCBA).Application-specific computation pipelines can be configured according to thecharacteristics of the block cipher processing in RCBA,which delivers high performance for crypto-graphic applications.RCBA adopts a coarse-grained reconfigurable architecture that mixes the ap-propriate amount of static configurations with dynamic configurations.RCBA has been implementedbased on Altera’s FPGA,and representative algorithms of block cipher such as DES,Rijndael and RC6have been mapped on RCBA architecture successfully.System performance has been analyzed,andfrom the analysis it is demonstrated that the RCBA architecture can achieve more flexibility and ef-ficiency when compared with other implementations. This paper describes a new specialized Reconfigurable Cryptographic for Block ciphersArchitecture (RCBA) .Application-specific computation pipelines can be configured according to the characteristics of the block cipher processing in RCBA, which delivers high performance for crypto-graphic applications. RCBA adopt a coarse-grained reconfigurable architecture that mixes the ap-propriate amount of static configurations with dynamic configuration. RCBA has been implemented based on Altera’s FPGA, and representative algorithms of block cipher such as DES, Rijndael and RC6have been mapped on RCBA architecture successfully. System performance has been analyzed, andfrom the analysis it is demonstrated that the RCBA architecture can achieve more flexibility and ef-ficiency when compared with other implementations.