Post-Quantum Functional Encryption : Principles, Protocols and Practice

现代密码学几乎可以彻底改变我们网络生活的方方面面。大规模的安全数据共享可能会变得轻而易举，有了功能加密(FE)等工具，我们就可以通过富有表现力的语言对访问权限进行精细控制，而且不会再有密码密钥的变戏法。最后，当甚至是小型量子计算机成为现实时，也许是下个十年，FE已知的基础也将崩溃。该项目旨在根据后量子(PQ)数学原理重新创建和扩展FE的能力，使其免受量子攻击，建立在最近从坚如磐石的密码原理中发现的有限形式的PQ-FE的基础上。它需要探索，寻找可能随之而来的真正壮观的结果。

Modern cryptography has the power to revolutionise virtually every aspect of our online lives. Large-scale secure data sharing could become a breeze, with tools such as functional encryption (FE) to give us fine control over access rights by means of expressive languages, and there will be no more juggling of crypto keys. Finally, the known foundations of FE will crumble when even small-sized quantum computers become reality, perhaps next decade. This project aims to recreate and expand the power of FE from post-quantum (PQ) mathematical principles, immune to quantum attacks, building on recent discoveries of limited forms of PQ-FE from rock-solid crypto principles. It begs exploring, for the truly spectacular outcomes likely to ensue.