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EQUALITY CHECK IMPLEMENTED WITH SECRET SHARING
EQUALITY CHECK IMPLEMENTED WITH SECRET SHARING
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机译:通过秘密共享实施平等检查
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摘要
A method of performing an equality check in a secure system, including: receiving an input v having a known input property; splitting the input v into t secret shares vi where i is an integer index and t is greater than 1; splitting an input x into k secret shares xi where i is an integer index and k is greater than 1; splitting the secret shares xi into a s chunks resulting in s·k chunks yj where j is an integer index; calculating a mapping chain t times for each secret share vi, wherein the mapping chain including s·k affine mappings Fj, wherein yj and Fj−1(yj−1) are the inputs to Fj and the F0(y0)=vi; and determining if the outputs have a known output property indicating that the input x equals a desired value.
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机译:一种在安全系统中执行相等检查的方法,包括:接收具有已知输入属性的输入v;将输入v分为t个秘密共享v i Sub>,其中i是整数索引,t大于1;将输入x拆分为k个秘密共享x i Sub>,其中i是整数索引,k大于1;将秘密份额x i Sub>分成s个块,从而产生s·k个块y j Sub>,其中j是整数索引;计算每个秘密共享v i Sub>的t次映射链,其中该映射链包括s·k个仿射映射F j Sub>,其中y j Sub>和F j-1 Sub>(y j-1 Sub>)是F j Sub>和F 0 Sub>( y 0 Sub>)= v i Sub>;确定输出是否具有指示输入x等于期望值的已知输出属性。
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