One-way functions are essential for complexity based cryptography
Impagliazzo, R.; Luby, M.
Foundations of Computer Science, 1989., 30th Annual Symposium on
Volume , Issue , 30 Oct-1 Nov 1989 Page(s):230 - 235
Digital Object Identifier   10.1109/SFCS.1989.63483
Summary:It is shown that many of the standard cryptographic tasks are equivalent to the usual definition of a one-way function. In particular, it is shown that for some of the standard cryptographic tasks any secure protocol for the task can be converted into a one-way function in the usual sense, and thus the security of any proposed protocol for these tasks is implicitly based on a function being `one-way.' Thus, the usual definition of a one-way function is robust; any one-way function with respect to another definition on which a secure cryptographic protocol can be based can be used to construct a one-way function in the usual sense. The authors focus on private-key encryption, identification/authentication, bit commitment, and coin flipping by telephone. However, the proof techniques presented here can be easily adopted to prove analogous results for other cryptographic tasks

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