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Introduction Encryptionpreventsunauthorizedpartiesfrom gainingaccesstoconfidentialmaterial;authentica-tionensuresthattheindividualistheoneheorshe claimstobe;anderrorcorrectioncanrevealinfor-mationreliablyinthepresenceofsustainedinter-ferenceduetochannelnoiseorhardwarefail-ures[1].Sourlas[2]showsthattheoreticalmodelsof magneticallydisorderedmaterials(spinglasses)provideanewclassoferror-correctioncodes,the costoftheperformancecanbecalculatedusingthe methodsofstatisticalmechanics,andthecodesare f… 相似文献
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