基于比特切片技術(shù)與指令集的LED算法快速實現(xiàn)
打開文本圖片集
關(guān)鍵詞：LED分組密碼； Δx64 架構(gòu)；軟件快速實現(xiàn)；比特切片；SIMD
中圖分類號：TP309 文獻(xiàn)標(biāo)志碼：A 文章編號：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輕量級分組密碼算法，其設(shè)計目標(biāo)是為了在資源受限環(huán)境下提供高效且安全的加密方案。（剩余15273字）