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Nov. 21, 2022, 2:24 p.m. |

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ePrint Report: Forking Sums of Permutations for Optimally Secure and Highly Efficient PRFs

Avijit Dutta, Jian Guo, Eik List

The desirable encryption scheme possesses high PRF security, high efficiency, and the ability to produce variable-length outputs. Since designing dedicated secure PRFs is difficult, a series of works was devoted to building optimally secure PRFs from the sum of independent permutations (SoP), Encrypted Davies-Meyer (EDM), its Dual (EDMD), and the Summation-Truncation Hybrid (STH) for variable output lengths, which can be easily …

eprint report secure

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