In cryptography, a random oracle is an oracle (a theoretical black box) that responds to every unique query with a (truly) random response chosen uniformly...
14 KB (1,773 words) - 05:25, 2 June 2024
an oracle machine is an abstract machine used to study decision problems. It can be visualized as a Turing machine with a black box, called an oracle, which...
15 KB (2,014 words) - 05:07, 1 April 2024
Pseudorandom function family (redirect from Pseudo-random function)
emulate a random oracle in the following way: no efficient algorithm can distinguish (with significant advantage) between a function chosen randomly from the...
8 KB (1,023 words) - 14:10, 31 January 2024
existentially unforgeable under adaptive chosen-message attacks) in the random oracle model assuming the intractability of the computational Diffie–Hellman...
8 KB (823 words) - 08:44, 16 August 2024
attacks in the random oracle model, that is, assuming random oracles exist. This result was generalized to the quantum-accessible random oracle (QROM) by Don...
8 KB (1,064 words) - 10:03, 13 May 2024
The OAEP algorithm is a form of Feistel network which uses a pair of random oracles G and H to process the plaintext prior to asymmetric encryption. When...
9 KB (1,460 words) - 17:38, 1 June 2024
modeled as a random oracle. Its security can also be argued in the generic group model, under the assumption that H {\displaystyle H} is "random-prefix preimage...
9 KB (1,206 words) - 11:33, 5 June 2024
construct in the random oracle model. Given a hash function H with a 3k bit output, to commit the k-bit message m, Alice generates a random k bit string R...
47 KB (7,701 words) - 03:54, 29 July 2024
Relative to oracles, we know that there exist oracles A and B, such that PA = BPPA and PB ≠ BPPB. Moreover, relative to a random oracle with probability...
19 KB (2,455 words) - 19:56, 18 July 2024
existentially unforgeable under adaptive chosen-message attacks) in the random oracle model. FDH involves hashing a message using a function whose image size...
2 KB (298 words) - 13:39, 14 August 2023