A hardware encryption and distribution system design based on FPGA

Following the increase requirement of data security, distribute information after encrypting, this is an effective method to keep its security during transporting period. This article introduces an encryption and distribution system design process. This system takes a FPGA chip as a control center. Apply VHDL implements PCI protocol and DES encryption and decryption algorithm. The function of this system is to choose crude information from a computer, then, encrypt it by a PCI encryption board and store this information into a portable storage device; and the opposite process. Except that, this system can improve its program on line and exchange keys using software. In all, this system has convenience operation and flexible improvement.