抗熵漏前饋網(wǎng)絡(luò)研究
ON ENTROPY IMMUNITY OF FEEDFORWARD NETWORKS
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摘要: 本文從實(shí)際出發(fā)減弱了Siegenthaler的相關(guān)免疫限制條件,實(shí)現(xiàn)了在不作出實(shí)質(zhì)性犧牲的前提下避免了相關(guān)免疫性與線性復(fù)雜度之間的折衷(trade-off)。接著將Bent函數(shù)引入前饋網(wǎng)絡(luò)的線性逼近熵漏現(xiàn)象的研究之中,得出了一些新結(jié)果。文中的研究方法也與前人不同。
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關(guān)鍵詞:
- 密碼; 前饋網(wǎng)絡(luò); 相關(guān)免疫; 抗熵漏
Abstract: From practical point of view, the Siegenthaler s definition of correlation immunity is improved. Under the new definition there exists no trade-off between the generalized correlation immunity and linear complexity of the output key streams. The famous Bent functions are used for the study of entropy immunity in feedforward netforks. New results and new methods are also presented. -
T. Siegenthaler, IEEE Int. Symp. Inform. Theory, Saint Jovite, Canada, 26-29, Sept. (1983).[2]T. Siegenthaler, IEEE Trans. on IT, IT-30(1954), 776-780.[3]T. Siegenthaler, IEEE Trans. on C, C-34(1985), 81-85.[4]R. Rueppel, Analysis and Design of Stream Ciphers, Springer-Verlag, New York, (1986).[5]曾肯成, 密碼體制中的墑漏現(xiàn)象, 中科院研究生院數(shù)據(jù)處理中心報(bào)告,1988年.[6]Yang Yi Xian, IEE Electronics Letters, 23(1987), 1335-1336.[7]楊義先, 北京郵電學(xué)院學(xué)報(bào), 1988年, 第3期, 第1-10頁.[8]F. Macwilliams, N. Sloane, The Theory of Error-Correcting Codes, North-Holland, New York, (1977). -
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