IEEE802.11i uses AES(Advanced Encrypt Standard),this increase process spending. In order to improve AP performance about processing cipher arithmetic,AP hardware system use FPGA as cipher co-microprocessor and execute AES by hardware.

• 因为IEEE 802.；11i在数据机密性保护中使用了被称为高级加密标准的Rijndael算法；增加了处理方面的开销；为了提高了AP处理密码运算的能力；系统中用FPGA芯片作为密码协处理器；用Verilog HDL在FPGA提供的逻辑资源中实现了Rijndael密码算法电路。