Hash函数MD5攻击技术研究(3)

时间:2025-07-11

Hash函数MD5攻击技术研究

Abstract

Hashfunctionis

widelyappliedintheaveryimportantandbasictoolinthefieldofinformationsecurity,areasofthedigitalsignatureandidentityauthentication.MD5

aalgorithm,asamemberofHashfunctionfamily,istypicalrepresentativeofMD

structureandwideusedininformationsecurity.Therefore,itishelpfultogetthebasicanalysismethodofHashfunctionstoattackotherHashfunctionsthroughtheresearchofMD5algorithm.

AttacktechnologyofMD5algorithm

analyzeisanalyzedandresearcheddeeplyinthisofMD5issummarized.Thepaper.Firstofall,themainideaofcollisionattackbit-tracking

thetechnologyisusedtoandcontrolthedifferentialpaths.Meanwhile,toimprovethepossibilityofmessagemodificationtechnologyistakenadvantageof

searchingthemessagesforcollision.Secondly,theconstruction

andtheoftheinitialstructureandtheskippingstepsisproposedtechnologyandmethodofpreimageattackof

MD5isanalyzedindetail.Finally,theperformancesoftheHashfunctionsaresummedupandthefurtherresearchdirectioniSintroduced.

Keywords:HashfunctionMD5CollisionattackPreimageattack

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