Adaptive versus Static Multi-oracle Algorithms, and Quantum Security of a Split-key PRF. (arXiv:2206.08132v3 [cs.CR] UPDATED)

Web: http://arxiv.org/abs/2206.08132

In the first part of the paper, we show a generic compiler that transforms
any oracle algorithm that can query multiple oracles adaptively, i.e., can
decide on which oracle to query at what point dependent on previous oracle
responses, into a static algorithm that fixes these choices at the beginning of
the execution. Compared to naive ways of achieving this, our compiler controls
the blow-up in query complexity for each oracle individually, and causes a very
mild blow-up only.

In …

algorithms key oracle quantum quantum security security