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发明公开
EP3096309A4 SECURE COMPUTATION METHOD, SECURE COMPUTATION SYSTEM, SORTING DEVICE, AND PROGRAM 审中-公开
SICHERES BERECHNUNGSVERFAHREN，SICHERES BERECHNUNGSSYSTEM，SORTIERVORRICHTUNG UND PROGRAMM

SECURE COMPUTATION METHOD, SECURE COMPUTATION SYSTEM, SORTING DEVICE, AND PROGRAM
摘要：
Secret calculation including secret sorting is performed at high speed. Permutation data generation step S10 generates permutation data and so as to generate permutation data . Random ID column generation step S12 generates a random ID column [r †’ i ] so as to generate a random ID column [r †’ L ]. Secret random permutation step S14 performs secret random permutation of a set composed of a random ID column [r †’ i-1 ], a key column [k †’ i ], and the random ID column [r †’ i ] with the permutation data . Flag creation step S16 sets a flag [f j,h ] by using a key [k j ]=([k j,0 ],...,[k j,L-1 ]). Order table creation step S18 creates an order table [s †’ ] by using the flag [f j,h ]. Sort permutation generation step S20 generates sort permutation ÃÀ -1 L by using the random ID column [r †’ i ], the order table [s †’ ], a post-permutation key column [À i k †’ i ], and a post-permutation random ID column [À i r †’ i ].
摘要（中）：

包括秘密分类在内的秘密计算高速执行。 置换数据生成步骤S10生成置换数据<-i>和<-i>，以生成置换数据<-L>。 随机ID列产生步骤S12产生随机ID列[r''i]以便产生随机ID列[r''L]。 秘密随机置换步骤S14对由随机ID列[r†'i-1]，密钥列[k†'i]和随机ID列[r†'i]组成的集合执行秘密随机置换 置换数据<-i>。 标志创建步骤S16通过使用密钥[k j] =（[k j，0]，...，[k j，L-1]）设置标志[f j，h]。 订单表创建步骤S18通过使用标志[f j，h]来创建订单表[s†']。 排列置换生成步骤S20通过使用随机ID列[r†'i]，排序表[s†']，排列后键列[Àik†'i]和排列 后置换随机ID列[Àir†'i]。

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