防窥,手机上最「见不得光」的技术|硬哲学

· · 来源:dev资讯

Rebecca Morelle, Alison Francis and Greg BrosnanBBC Science

Two characters might have identical Unicode skeletons but render differently in specific fonts, or have different skeletons but render identically in a particular typeface. Detecting this requires rendering glyphs and comparing pixel output. No purely Unicode-data-based approach handles it, and UTS #39 does not attempt to.

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