基于RO电路变化PUF的FPGA实现

Implementation of PUF based on RO circuit

现代密码协议规定只有授权参与者才可以获得密钥和访问信息的权限。然而,通过侵入系统泄露密码的方法层出不穷,给现代信息安全造成严重的威胁。对此问题,PUF不可克隆的优点,为信息安全提供了进一步的保障。例如:RO PUF、Arbiter PUF、SRAM PUF。通过把物理信息集成到电路设计从而实现PUF的设计,与现有RO PUF相比,PISO移位寄存器的运用减少了更多的硬件资源。由4位激励能够产生16位随机响应,大大增加了激励响应对的数目,而且通过FPGA测得内部汉明距离是符合要求的。

The modern cryptographic protocol specifies that only authorized participants can gain access to the key and obtain in-formation. However, the way to leak passwords through intrusion into the system is endless, causing serious problems for modern in-formation security. On this issue, the advantages of PUF for information security to provide further protection. For example ： Arbiter PUF, RO PUF, SRAM PUF. This project is designed to integrate the physical information into the circuit design to achieve the de-sign of the PUF. Comparing to existing RO-PUF, PISO shift register reduce the hardware. A 4-bit challenge can produce 16-bit random response, which greatly increases the number of challenge response pair, and the internal Hamming distance is measured by the FPGA.