基于比特切片技术与指令集的LED算法快速实现

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关键词：LED分组密码； Δx64 架构；软件快速实现；比特切片；SIMD

中图分类号：TP309 文献标志码：A 文章编号：1001-3695（2025）07-035-2184-07

doi：10.19734/j. issn.1001-3695.2024.11.0482

Abstract：LEDisalightweightblockcipherspecificalldesignedforresource-constraineddevices，characterizedbylowpower consumption，minimal memoryusage，andhigh eficiency.Thesefeatures make ithighlysuitableforapplicationsin Interneof Things（IoT）devices，radiofrequency identification（RFID）tags，andembedded systems.However，as performancedemands continuetorise，optimizing theencryptionimplementation eficiencyof theLEDblock cipherhasbecomeaprominentesearch focus.Thisstudyproposed a generalizedbit-slicing methodforAES-likeblock ciphersandoptimized itsimplementationusing singleinstructionmultipledata（SIMD）technology.The methodappliedtotheLEDencryptionalgorithm toenhance ts parallel data processingcapabilities.Aditionally，the studyexplored S-box optimizationschemes fortheLEDalgorithm，reducing the numberoflogicgatesrequiredforS-boximplementation.Thetestsdemonstratethattheencryptioimplementationeiciencyof theLED-64andLED-128algorithmsareimprovedby2.26times and2.14times，respectively.The experimentalresults indicatethattheproposedmethodprovidessignificantreferencevalueforthesoftwareoptimizationofAES-likeblockcipher implementations based on bit-slicing technology.

Key words：LED block cipher;x64 architecture；fast software implementation；bit-slicing；SIMD

0 引言

2011年，Guo等人[1]在CHES-2011上提出了LED轻量级分组密码算法，其设计目标是为了在资源受限环境下提供高效且安全的加密方案。（剩余15273字）