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The Pseudorandom Oracle Model and Ideal Obfuscation
Sept. 12, 2022, 11:06 p.m. |
IACR News www.iacr.org
ePrint Report: The Pseudorandom Oracle Model and Ideal Obfuscation
Aayush Jain, Huijia Lin, Ji Luo, Daniel Wichs
We introduce a new idealized model of hash functions, which we refer to as the *pseudorandom oracle* (PrO) model. Intuitively, it allows us to model cryptosystems that use the code of a hash function in a non-black-box way. Formally, we model hash functions via a combination of a pseudorandom function (PRF) family and an ideal oracle. A user can initialize the hash function …
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