论文标题

黑匣子组的自然表示$ sl_2(\ mathbb {f} _q)$

Natural representations of black box groups encrypting $SL_2(\mathbb{F}_q)$

论文作者

Borovik, Alexandre, Yalçınkaya, Şükrü

论文摘要

给定一个黑框组$ \ mathsf {y} $加密$ {\ rm sl} _2(\ mathbb {f})$的全局指数$ e $,其中$ \ mathbb {f} $是一个未知的奇特特征,是一个未知的有限型领域\ Mathsf {y} \ longleftrightArrow {\ rm sl} _2(\ Mathsf {k}),\],其中$ \ mathsf {k {k} $是一个黑匣子字段,加密$ \ m athbb {f} $。我们的算法没有提及任何其他甲壳。我们还为黑匣子组提供了类似的算法,加密$ {\ rm pgl} _2(\ mathbb {f})$,$ {\ rm psl} _2(\ mathbb {f})$。

Given a global exponent $E$ for a black box group $\mathsf{Y}$ encrypting ${\rm SL}_2(\mathbb{F})$, where $\mathbb{F}$ is an unknown finite field of unknown odd characteristic, we construct, in probabilistic time polynomial in $\log E$, the isomorphisms \[ \mathsf{Y} \longleftrightarrow {\rm SL}_2(\mathsf{K}), \] where $\mathsf{K}$ is a black box field encrypting $\mathbb{F}$. Our algorithm makes no reference to any additional oracles. We also give similar algorithms for black box groups encrypting ${\rm PGL}_2(\mathbb{F})$, ${\rm PSL}_2(\mathbb{F})$.

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