关键词: 轻量级分组密码算法,FPGA实现,差分攻击,线性攻击,代数攻击

Abstract: Lightweight cryptography algorithm has become a hot research.The paper presented a new lightweight block cipher algorithm named Surge.Surge has low resource,high performance and high security.Block length of Surge cipher is 64 bits.Its variable key uses 64,80 or 128-bit length.Surge is based on the SPN structure.The round function is divided into 5 modules.Key expansion module is no expansion.Round-constants add module uses 0 to 15 to combine so that it can achieve efficient and highly confused round-constrants add operation.MixColumn module uses (0,1,2,4) to composite hardware-friendly matrix on the GF (2⁴).Low resource and highly efficient of Surge is attained by this novel design.Surge is implemented and downloaded in FPGA.Experimental results show that it has smaller area resources and better cryptographic properties. The security expriment proves that surge can be against differential and linear attacks,algebraic attacks.

Key words: Lightweight block cipher,FPGA implementation,Differential attacks,Linear attacks,Algebraic attacks