论文部分内容阅读
针对我国税控领域中发票数据的防伪问题,设计了一种税控密码算法核验卡。此卡以FPGA为控制核心,通过PCI总线内置于税控服务器中。核验卡通过状态机控制税控密码算法芯片SSX12-A高效运行,对发票数据防伪码进行核验;另外利用PCI接口芯片实现了数据的快速传输。该卡应用于税控行业,在8片SSX12-A并行工作的情况下,核验票据防伪码的速度可达1167次/秒,有效提供了发票数据的防伪措施。
In view of the anti-counterfeiting problem of invoice data in the field of tax control in our country, a tax control password algorithm verification card is designed. The card to the FPGA as the core control, built in the tax control server through the PCI bus. Check the card through the state machine control tax control password algorithm chip SSX12-A efficient operation, verification of invoice data security code; In addition the use of PCI interface chip to achieve the rapid data transmission. The card used in the tax control industry, in the case of eight SSX12-A parallel work, check the ticket security code speed up to 1167 times / sec, effectively providing counterfeit invoice data security measures.