unobfuscatable en · ADJ
Etymology
From un- + obfuscatable.
Meanings
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(rare) Not obfuscatable; which cannot be obfuscated.
This may seem surprising in light of the negative results of [2], who showed that there exist (contrived) families of unobfuscatable functions for which the VBB definition is impossible to achieve in the plain model.
2014, Phong Q. Nguyen, Elisabeth Oswald, Advances in Cryptology - 33rd International Conference of the Theories and Applications of Cryptographic Techniques, International Association for Cyrptologic Research - Springer, page 224