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Updated SM3中的FF2和GG2函数 (markdown)
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@ -6,6 +6,9 @@ $GG2(X, Y, Z) = (X \land Y) \lor (\lnot X \land Z)$
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$FF2(X, Y, Z) = (X \land Y) \bigoplus (X \land Z) \bigoplus (Y \land Z)$
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$GG2(X, Y, Z) = (Y \bigoplus Z) \land X \bigoplus Z$
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# 应用
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特别式GG2,其等价公式相比原来的公式,因其简单,具有一定的性能优势。
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# 验证
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|X|Y|Z|$(X \land Y) \lor (X \land Z) \lor (Y \land Z)$ |$(X \land Y) \bigoplus (X \land Z) \bigoplus (Y \land Z)$|$(X \land Y) \lor (\lnot X \land Z)$|$(Y \bigoplus Z) \land X \bigoplus Z$|
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